Leading Kotlin Android App Development Companies in Sweden (2026)

You need a Kotlin Android team that can deliver modern, performant Android apps while handling Play Store releases, GDPR requirements, and integration with existing backends. When evaluating partners, compare Kotlin and Jetpack Compose expertise, Android architecture and testing practices, CI/CD and observability, security and privacy processes, device and API compatibility, team model and scalability, and post-launch maintenance and commercial terms.
SoftPro appears first as the featured partner for this roundup and serves buyers across Sweden as an international partner. The selection places SoftPro first as the author-selected international partner to help buyers shortlist providers against the practical criteria above.

Quick comparison of Kotlin Android firms Sweden

1. SoftPro

SoftPro is the author-selected international partner featured first for the list of Leading Kotlin Android App Development Companies in Sweden (2026). The company is positioned for enterprise and scale-up projects that demand robust backend services, cloud integration, and reliable web-to-mobile delivery, and its website lists an EU-based team operating from Warsaw, Poland.

SoftPro's website does not show native Kotlin or Android case studies. The site documents adjacent delivery strengths relevant to Android projects, including progressive web apps, React and Node.js frontends, ASP.NET Core and .NET backends, cloud-native development on Azure and AWS, CMS experience, and long-term maintenance and modernization work.

Key Highlights

• More than 20 years of combined team experience stated on the company website.

• Published case studies include a business portal, CRM/HRM, a SaaS ETL platform, a support system, and a product-promotion social network.

• An AI practice that integrates LLMs, implements retrieval-augmented generation architectures, and develops ML-driven automation.

• Multilingual website with a Swedish-language option, demonstrating active outreach to the Swedish market.

Services

• Custom Software Development

• Web Application Development

• Cloud Development

• Artificial Intelligence

Contact Information

Website: soft-pro.pl

Phone: +48 571 282 759

Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401

LinkedIn: www.linkedin.com/company/soft-pro-pl

2. Mobile Interaction

Mobile Interaction is a Stockholm-based app development firm established in 2002 that builds native Android and iOS apps and cross-platform solutions using Kotlin Multiplatform. The firm explicitly lists native development in Swift and Kotlin, an emphasis on user experience and performance, and AI and machine‑learning capabilities on its site.

The website does not show explicit references to Progressive Web Apps, service workers, or offline‑first caching strategies, so buyers evaluating Mobile Interaction for Kotlin Android projects should review the company’s Expertise and Delivery Models pages and request concrete examples of Kotlin architecture, on‑device ML, and performance or caching work. Prospective clients can also verify Kotlin Multiplatform usage and system integration capabilities through the published case studies and the “How we work with AI” resources on the site.

Key Highlights

• Trusted by major Swedish and international clients including Ericsson, Telia, Electrolux, Svenska Spel, and Elekta.
• Case study: Stora Enso — AI-based knowledge capture from video and voice is listed as a published project on the site.
• Case study: ICA — a logistics app for warehouse handling of outgoing goods is published as a client project on the site.
• Case study: Urbanista — a companion app for connected hardware is listed among featured projects on the site.

Services

• Native iOS & Android development
• Kotlin Multiplatform
• AI & Machine Learning
• Backend development & API design

Contact Information

Website: mobileinteraction.se

Phone: +46 8 500 039 20

Email: info@mobileinteraction.se

Address: Maria Trappgränd 5118 20 Stockholm

3. Mullvad VPN

Mullvad VPN AB is a Sweden-based, privacy-focused VPN provider that publishes an Android app alongside a privacy browser. The official downloads page shows a cryptographically signed APK, GitHub-hosted releases, and an Android client that works on Android 9.0 and later.

Key Highlights

• Price listed on the site: €5/month for the VPN subscription.
• Mullvad Browser is developed by the Tor Project and is offered alongside the VPN.
• The site links the app’s source code on GitHub and provides a cryptographically signed APK and GPG signatures for releases.
• The site lists a November 2024 app audit and a February 2026 security assessment for its software.

Services

• VPN
• Mullvad Browser
• Browser extension

Contact Information

Website: mullvad.net

Email: support@mullvadvpn.net

Address: Mullvad VPN AB, Box 53049, 400 14 Gothenburg, Sweden

4. Moonwise

Moonwise is an agent-assisted mobile app agency and consultancy based in Stockholm, Sweden. Their services page explicitly lists Native Android delivery with Kotlin, Jetpack, and Google Play release workflows alongside Flutter, React Native, and iOS development.

Buyers assessing Moonwise for Kotlin Android work should review the site-listed architecture and delivery practices such as Clean Architecture, MVVM, modular codebases, and CI/CD pipelines. Inspect portfolio entries like BLX and Boxbollen for published apps and request concrete examples of Jetpack component usage and Play Console release setup.

Key Highlights

• Displays an "Official Google Flutter Consultancy" badge on the homepage.
• Lists 16+ years of mobile experience.
• Notes 35+ apps built and published.
• Shows a 4.8-star customer rating on the site.

Services

• Native Android
• App Architecture
• Store Publishing
• Quality and Delivery

Contact Information

Website: moonwise.se

Email: info@moonwise.se

Address: Moonwise AB, Stockholm, Sweden

5. Royan AB

Royan AB is a Stockholm-based software company that designs and ships native mobile apps and AI systems. Their public site lists Android development in Kotlin and Jetpack Compose and states they have been shipping mobile apps for 10+ years.

Buyers evaluating Royan for Kotlin Android work can request Android code audits or an embedded senior engineer, expect a working demo every week, and confirm Play Store release and post-launch monitoring practices described on the site. The company documents platform and delivery choices, which lets buyers verify Kotlin, Jetpack Compose, testing, and performance-budget commitments before engagement.

Key Highlights

• Registered in Sweden in 2026 with Org nr 559573-6975, and listed address in Nacka, Stockholm.
• Publishes its own apps signed and notarized under Royan AB's Apple Developer ID and makes those products open source.
• Built "Oh My Android", a control panel for the Android Emulator that includes an MCP server enabling Claude, Codex and other agents to drive the emulator.
• Maintains AI and RAG capabilities on the site, naming pgvector, hybrid search, re-ranking, evaluations and tracing as part of their pipeline.

Services

• Android development
• AI agents & RAG
• Consulting & audits

Contact Information

Website: royan.se

Phone: +46 73 598 79 90

Email: contact@royan.se

Address: Edinsvägen 1, 131 45 Nacka

6. HiQ

HiQ is a Swedish digital engineering firm with offices across Europe and a software‑first approach to building production systems. The company’s case pages document native mobile work — for example, HiQ built St1’s new mobile app using Kotlin for Android and Swift for iOS and describes design, development and system integration for that project.

Buyers evaluating HiQ for Kotlin Android work should review the St1 case to confirm Android‑native implementation and to inspect integration and security details. The site lists related services (System & Software Development, Cloud & DevOps, and Digital Design & UX) and competence groups that buyers can query for team CVs, platform integration specifics, and performance or security testing deliverables.

Key Highlights

• Approximately 1,500 tech employees across HiQ’s organisation.
• Operates 25 offices in Europe.
• Reports more than 350 launched apps.
• Part of the team behind Sweden’s Swish payment app; the Swish case page states the app has over 6 million users.

Services

• System & Software Development
• Native mobile app development
• Digital Design & UX
• Cloud & DevOps Solutions

Contact Information

Website: www.hiq.se

Phone: +46 858890000

Email: info.stockholm@hiq.se

Address: Katarinavägen 15, 11645 Stockholm, Sweden

7. Knowit

Knowit is a Nordic digital consultancy that builds mobile and web products and explicitly lists Kotlin for robust Android apps on its Mobil & apputveckling page.

That same mobile page highlights selected collaborations including SOS Alarm’s 112 app, DeLaval, and Svenska Bostäder, which are shown as mobile projects.

Key Highlights

• Lists cross-platform frameworks Flutter and React Native alongside native technologies on its mobile and app development page.
• States integration capabilities with Swedish services such as BankID and Swish for authentication and payments.
• Has a public news announcement about a framework agreement to support Försvarsmakten’s digital platforms.
• Publishes an accessibility offering that references Lighthouse for performance and accessibility testing.

Services

• Native Android (Kotlin)
• Cross-platform (Flutter, React Native)
• Progressive Web Apps (PWA)
• App publishing & maintenance

Contact Information

Website: www.knowit.se

Phone: +46 8 700 66 00

Email: info@knowit.se

Address: Box 3383, 103 68 Stockholm

Visiting address: Sveavägen 20

LinkedIn: linkedin.com/company/knowit/

8. Codebrain

Codebrain is a Swedish software consultancy based in Kalmar that builds mobile apps, websites, and backend systems. The company’s site lists specific app projects such as Biopasset, EFN & Finansmagasinet, Hockeynews.se, and Nyheter24, and its technology list names Java(Android) for Android work but does not mention Kotlin.

For buyers considering Kotlin Android development, review Codebrain’s published Android projects and request details about language choice, Android architecture, and interoperability or migration plans. The site also provides material buyers can use to evaluate operational readiness and ongoing support.

Key Highlights

• Lists Swift (iOS) in its public technology stack.
• Shows AWS as a cloud platform in its technology list.
• Publishes that it offers SLA (24/7) support, hosting, and ongoing maintenance under “Förvaltning & utveckla”.
• Maintains a technical blog with posts on security and regulatory topics, including guidance linked to the Cyber Resilience Act.

Services

• Web Development
• App Development
• System Development

Contact Information

Website: codebrain.se

Phone: +46(0)73 - 506 65 21

Address: Skeppsbrogatan 12, 392 31 Kalmar, Sweden

9. Netlight

Netlight is an international digital consultancy founded in Stockholm with local offices in Stockholm and Gothenburg. The company’s public mobile practice and stories document hands-on Android engineering work, including Android-based infotainment system development, a full-feature vehicle app marketplace, and a rapid workforce app for an on-demand delivery service.

Buyers evaluating Kotlin Android development should review Netlight’s mobile team listings and case material on the mobile services page. The site also documents a migration from Java to Kotlin on a financial-services engagement and describes release-management capabilities such as Remote Software Upgrades for individual apps that buyers can probe in references.

Key Highlights

• More than 2,200 consultants and 16 offices across 11 countries, per the company facts page.
• Netlight Consulting AB and GmbH hold ISO 9001 and ISO 14001 compliance, and Netlight Consulting GmbH is noted as TISAX certified.
• The mobile services page lists named mobile specialists and contact roles, for example Mobile Architecture Consultant Haydar Sahin and Mobile Strategy Consultant Jeannine Endreß.

Services

• Mobile Development
• Mobile Architecture
• Mobile Strategy
• UX & Product Design

Contact Information

Website: www.netlight.com

Phone: +46 8 616 99 40

Email: info@netlight.com

Email: sales@netlight.com

Address: Regeringsgatan 25, 111 53 Stockholm, Sweden

Address: Otterhällegatan 2, 411 18 Göteborg, Sweden

LinkedIn: linkedin.com/company/netlight-consulting

10. Rebtel

Rebtel is a Stockholm-based telecommunications company that operates a consumer mobile app for international calling and mobile top-ups. The official site documents an Android app with in‑app calling, an offline calling mode for a list of supported countries, and a routing component referred to on the site as the Red Box.

The site does not disclose Rebtel’s Android engineering stack or whether the team uses Kotlin, so buyers evaluating Rebtel for Kotlin Android work should request technical evidence directly. Evaluate their Android release notes and compatibility notices, confirm handling of the documented Android “Intercept” behaviour for recent OS changes, and review the company’s published job listings and app update cadence to verify active Android engineering capacity.

Key Highlights

• Rebtel is registered in Sweden with company number 556680-3622.
• The company’s head office is listed as Jakobsbergsgatan 16, 111 44 Stockholm, Sweden.
• The official help pages list the Android app version as 6.72.0 and state the app supports Android 7.0 and later.
• The careers page linked from the official site advertises Senior Android Developer openings, indicating active hiring for Android roles.

Services

• International calling
• Global Unlimited subscription
• Mobile top‑up
• Calling cards

Contact Information

Website: www.rebtel.com

Email: support@rebtel.com

Address: Rebtel AB, Jakobsbergsgatan 16, 111 44 Stockholm Sweden

11. Royan

Royan AB is a Stockholm-based software company that designs and ships native mobile apps and AI systems. The firm explicitly lists Android development in Kotlin with Jetpack Compose, notes “Shipping mobile apps 10+ years,” and publishes products such as Oh My Android on its site as concrete evidence of Android experience.

Buyers evaluating Royan for Kotlin Android work can verify its Android stack on the Technology and Projects pages, where Kotlin, Jetpack Compose, Coroutines and Play Store release are listed and Oh My Android is shown with ADB and MCP server integrations. Royan documents a senior-led delivery model with weekly demos, fixed-scope or milestone engagements, and a Harden stage that includes tests, accessibility, security and performance checks, which clients can confirm in a pre-contract technical review.

Key Highlights

• Registered company details are published on the site: Royan AB, Org nr 559573-6975, registered 2026, based in Nacka, Stockholm.

• The firm publishes and signs its own apps under its Apple Developer ID and lists products such as Oh My Android, LyricGlow and SongLit.

• The Oh My Android product explicitly lists ADB integrations and an MCP server that allows LLM-driven interactions with the Android emulator.

• Royan can host vector stores and application servers in EU regions and states it designs AI features for GDPR compliance and the EU AI Act.

Services

• Kotlin Android Development

• Jetpack Compose & UI implementation

• AI agents & RAG integration

• Senior engineering consulting

Contact Information

Website: royan.se

Phone: +46 73 598 79 90

Email: contact@royan.se

Address: Edinsvägen 1, 131 45 Nacka

12. Sinch

Sinch is a Stockholm-headquartered cloud communications provider that publishes developer SDKs and APIs for messaging, voice, video, and user verification. Its developer site and SDK downloads include Android packages for in‑app calling and chat, and the Android SDK has been refactored to Kotlin with migration notes in the release documentation.

Buyers evaluating Kotlin Android app development should review Sinch's SDK downloads, online reference documentation, and sample applications to validate API surface, runtime dependencies, and integration patterns. Sinch also publishes changelogs and minimum requirements to help development teams plan upgrades and Google Play submissions.

Key Highlights

• Android Android SDK downloadable release currently listed as 6.30.3 on Sinch's SDK downloads page.
• Sinch download notes require customers to upgrade to Android SDK 6.14.5 or newer to comply with Google Play 16 KB page size requirements.
• Developer documentation lists minimum supported Android version as Android 5.0 Lollipop (API level 21).
• Sinch reports more than 200,000 customers and powers approximately 900 billion customer interactions annually.

Services

• Messaging
• Voice & Video
• Verification

Contact Information

Website: www.sinch.com

Phone: +46844682803

Address: Lindhagensgatan 112, 112 51 Stockholm, Sweden

LinkedIn: linkedin.com/company/sinch

13. ZenDev

Zendev is a Swedish technology partner with a headquarters in Gothenburg and nearshore hubs in Sarajevo and Mostar. Their website lists App development among services and shows mobile frameworks such as Flutter and React Native in its technologies list, and the Projects and Testimonials pages reference mobile work including a highlighted “PDT app.”

The site does not list Kotlin explicitly among its technology tags, so buyers seeking Kotlin Android expertise should request developer CVs and Kotlin code samples or project references. Use Zendev’s Projects portfolio and case studies to vet mobile delivery, and verify the ISO certificate images and the ICA nearshore partnership that is hiring 100+ engineers to confirm process maturity and team scale.

Key Highlights

• Homepage shows client logos that include IKEA, Ericsson, and Volvo.

• Zendev lists recognitions including 2024 EMEA Tech Fast 500 and Top B2B Companies Sweden 2022.

• The site highlights an IT Country Partner collaboration with ICA that plans to hire 100+ engineers in Sarajevo.

• ISO certificate images are displayed on the site, indicating formal quality documentation is available.

Services

• App development

• Staff augmentation

• Nearshore development teams

• Enterprise software development

Contact Information

Website: zendev.se

Address: Kungsportsavenyn 21, 41136 Gothenburg, Sweden

Address: Dzavida Haverica 6, Sarajevo Tower, 71000 Sarajevo, Bosnia & Herzegovina

Address: Dr. Ante Starcevica bb (Integra), 88000 Mostar, Bosnia & Herzegovina

14. B3 Consulting Group

B3 Consulting Group is a Stockholm-based consultancy that delivers digital transformation, cloud engineering and product development for enterprise clients across Sweden, Norway and Poland. On its official site B3 highlights platform work that runs on smartphones and computers, including the My Epiroc digital customer platform and a CTEK charging-box project where B3 contributed embedded software and supported smartphone app and web interfaces.

The site does not list Kotlin or native Android expertise. Buyers assessing B3 for Kotlin Android work should evaluate the company’s platform-to-mobile experience and delivery practices by reviewing the My Epiroc case for smartphone access, the CTEK project for embedded-device and smartphone integration, the firm’s UX and product design capabilities, and its use of agile teams and the SAFe framework on cross-disciplinary engineering efforts.

Key Highlights

• Founded in 2003.
• Around 900 employees across Sweden, Poland and Norway as stated on the company site.
• Announced consolidation of analytics and generative AI expertise under B3 Indes (news, October 2024).
• Led a private Azure cloud migration for Almi completed in 2022.

Services

• Mobile app development
• Embedded systems
• Cloud & DevOps
• UX & product design

Contact Information

Website: b3.se

Phone: 08-410 143 40

Email: info@b3.se

Address: Wallingatan 2, vån 5, Stockholm

15. ZenDev (Zendev AB)

Zendev is a Sweden-headquartered technology partner that publishes a portfolio of web and mobile work and lists App development alongside web and SaaS services. The site shows mobile-framework experience with Flutter and React Native, but it does not mention Kotlin or the native Android toolchain explicitly.

Buyers evaluating Zendev for Kotlin Android work should review the Projects portfolio and client case excerpts on the site, request specific native-Android references and developer CVs, and use the contact form or scheduled-meeting links to confirm whether proposed teams include Kotlin experience. The site also displays ISO certificate images and a contact form, which buyers can use to verify delivery controls and compliance claims directly.

Key Highlights

• Client logos and testimonials include Ericsson, IKEA, and Volvo, visible on the company homepage.
• Zendev runs an IT Country Partner program with ICA and states plans to hire 100+ engineers in the Sarajevo hub.
• The company lists recognitions and industry placements, including a 2024 EMEA Tech Fast 500 mention on the site.
• Portfolio and product mentions on the site include Hidroxa, Avidnote, Robinize, Greenfee365, and a PDT app referenced in client feedback.

Services

• Staff augmentation
• Nearshore development teams
• Enterprise software development
• Web development

Contact Information

Website: zendev.se

Address (Sweden): Kungsportsavenyn 21, 41136 Gothenburg

Address (Bosnia & Herzegovina): Dzavida Haverica 6, Sarajevo Tower, 71000 Sarajevo

Address (Bosnia & Herzegovina): Dr. Ante Starcevica bb (Integra), 88000 Mostar

16. B3

B3 Consulting Group is a Sweden-based consulting group with specialist subsidiaries and around 900 employees across Sweden, Norway and Poland. Its official app development page states that Android work uses Kotlin and Jetpack Compose and that the group operates a dedicated mobile unit, B3 Mobile, led by Camilla Landén.

Buyers evaluating Kotlin Android partners can use B3’s verified signals to assess fit: the Preem case documents an Android frontend built with Jetpack Compose that was integrated with DevOps and automated testing, and the app offering lists Kotlin alongside cross-platform frameworks. Request recent Jetpack Compose references, the composition of the frontend team from B3 Mobile, and examples of CI/DevOps pipelines and UI test automation when validating their Android delivery capability.

Key Highlights

• The Preem case reports a 150% increase in active users after the rebuilt app launched.

• B3 launched the specialist unit B3 Mobile in January 2021 to strengthen its app offering and acquired the remaining shares in 2025.

• The CTEK project was delivered using the SAFe framework with emphasis on test automation, security, and remote agile teams.

Services

• Android development

• iOS development

• Cross-platform development

• App UX & design

Contact Information

Website: b3.se

Phone: 08-410 143 40

Email: info@b3.se

Address: Wallingatan 2, vån 5, Stockholm

Conclusion

SoftPro is the author-selected international partner listed first and is positioned for enterprise and scale-up projects serving the Swedish market and cross-border delivery.
When choosing among Swedish Kotlin Android providers, prioritize technical depth in Kotlin-specific areas such as native Android engineering, Jetpack/Compose, and Kotlin Multiplatform when you need shared code across platforms. Match the delivery model to your risk profile by weighing local onshore teams, nearshore hubs, or vendor-managed engineering for scale and continuity. Confirm long-term maintenance commitments, CI/CD and Play Store release workflows, security and privacy practices, and collaboration cadence to ensure a practical fit with your product roadmap and compliance requirements.

Frequently asked questions

How much does it typically cost to develop a Kotlin Android app with a Swedish agency in 2026?

Cost depends on scope, integrations, and team seniority rather than country alone. Swedish agencies tend to charge premium rates compared with some offshore providers, but you can control spend by scoping an MVP and using phased delivery. Request fixed-price estimates and compare proposals from several firms, including the featured company SoftPro, to get accurate budgets.

How should I compare SoftPro with other Swedish Kotlin vendors like HiQ, Netlight, or Knowit?

Compare candidates on relevant project experience, delivery process, and team composition instead of brand alone. Review case studies and ask for references for Kotlin Android work. Assess cultural fit, communication cadence, and contractual terms to determine which vendor aligns with your priorities.

What types of Android projects are best suited to hire a Swedish Kotlin development company?

Projects requiring close collaboration, strong data protection awareness, or integrations with European systems are a good fit. Swedish firms work well for enterprise-grade apps, regulated industries, and startups that value design and long-term maintenance. If you need local presence for workshops or governance, a Sweden-based team is advantageous.

What is the typical development timeline for delivering an MVP and a production Kotlin Android app with a Swedish team?

A discovery and specification phase usually takes a few weeks to align on requirements. An MVP can often be delivered in a few months, while a fully featured production app commonly spans several additional months depending on complexity. Build a roadmap with clear milestones and acceptance criteria to keep timelines predictable.

What are the main risks and benefits of hiring a Swedish Kotlin specialist versus an offshore provider?

Benefits include nearer time zones, cultural alignment, stronger EU data-compliance awareness, and easier in-person collaboration. Risks include generally higher rates and potentially smaller talent pools for niche skills. Mitigate risks by running a short paid pilot, clarifying deliverables, and securing IP and support terms in the contract.