Step 01
Discovery & Workshops
We learn about your business needs, analyze the market, and define the project scope. Together, we develop a product vision.
Mobile Apps
Mobile Apps iOS & Android
Modern native and cross-platform applications
GMI Software ships production React Native and Expo apps for teams in the EU, UK and US. The SFD app reached 100,000+ downloads and 4.9★ on the App Store. Initial estimate within 48 hours; fixed price after our DDT workshop.
We design and implement mobile applications that increase sales, loyalty, and user convenience. From workshops and UX to implementation and development.
120+
Completed projects
50+
Apps in stores
30
Team members
A mobile product, not a rushed APK
Capabilities serious brands expect
Expo and React Native are our default for products that must feel native, work offline, use device hardware, and ship without drama - the same bar as large-scale rollouts.
One codebase, two stores
React Native and Expo: faster iteration than maintaining two native codebases, with native modules when the product truly needs them.
Push and in-app inbox
Segmentation, deep links, and transactional flows - from reminders to operations messaging, without burning user trust.
Offline-first sync
Queued actions in the field, retries, and conflict handling - so weak signal does not block revenue.
Hardware and permissions
Camera, scanning, Bluetooth, NFC, location, and sensors - when the product is more than flat screens.
Store releases & OTA
App Store and Google Play publishing plus JavaScript updates without a full store review cycle - shorter path from fix to user.
Last updated: July 2, 2026
How much does a React Native app cost in 2026?
| Scope | Range | Notes |
|---|---|---|
| Loyalty / simple B2C MVP | EUR 18,000 - 28,000 | 3-5 months, iOS + Android |
| Commerce app with integrations | EUR 35,000 - 55,000 | 5-8 months, ERP/payments |
| CRM / field operations mobile | EUR 45,000 - 70,000 | 6-10 months, offline + roles |
Ranges after a DDT scope review. Final cost depends on integrations, offline flows, IoT and compliance. Based on GMI Software delivery data (120+ projects).
React Native vs Flutter vs native - when to pick what?
| Criterion | React Native + Expo | Flutter | Native iOS + Android |
|---|---|---|---|
| MVP time-to-market | 8-14 wks | 10-16 wks | 16-24 wks |
| Cost vs dual native | -30-40% | -25-35% | 100% baseline |
| Native API access | Bridge + Expo modules | Platform channels | Full |
Cooperation process
How does our cooperation look like?
A transparent process that leads from idea to finished product
Step 02
Design & Prototyping
We design UX/UI, create prototypes, and test solutions with users. We ensure a consistent design system.
Step 03
Development
We build the app using React Native (Expo) or native technologies. We care about performance, security, and code quality.
Step 04
Testing & Optimization
We conduct functional, performance, and security tests. We optimize the app for different devices.
Step 05
Deployment & Publication
We help with the publication process in App Store and Google Play. We provide support during launch and the first weeks.
Step 06
Support & Development
We monitor app performance, collect feedback, and develop the product. We provide continuous technical support.
Key benefits
Why choose us?
Business outcomes first—technology is the means, not the end in itself.
User experience
We design intuitive, fast, and aesthetic interfaces.
Performance
We optimize app performance on different devices.
Security
We care about stability, compliance, and data protection.
Business alignment
Features tailored to the real needs of your customers.
FAQ
Frequently asked questions about mobile apps
How much does a React Native app cost at GMI Software?
Ballpark: loyalty MVP EUR 18-28k, commerce app with integrations EUR 35-55k, full CRM-style mobile EUR 45-70k. Initial estimate within 48 hours; fixed price after DDT.
Is React Native production-ready?
Yes. The SFD app built by GMI Software in React Native hit 100,000+ downloads and 4.9★ on the App Store (Mobile Trends Awards 2025 Commerce nomination).
How long does mobile app development take?
Typically 3-6 months to a production release: discovery, UX/UI, 2-week sprints, QA and store submission.
Do I own the source code after delivery?
Yes. GMI Software transfers full IP and source code after project completion. No vendor lock-in.
Analytics from day one
On a greenfield build, React Native migration, or major modernization we build the tracking plan alongside code - funnels, CDP, and server-side measurement without a last-minute bolt-on.
- One event dictionary for iOS and Android
- Conversion funnels from entry to purchase
- Dashboards and marketing team onboarding
Technologies
What technologies do we use?
Modern tools and proven solutions for the best results
React Native
Frontend
Expo
Framework
TypeScript
Language
Metro
Bundler
Next.js
Frontend
NestJS
Backend
DigitalOcean
Cloud
Guides and proof
Articles, technology pages and case studies that support your buying decision.
React Native technology compendium
When to pick React Native, Poland nearshore and comparison with Flutter and native.
Read moreReact Native vs Flutter in 2026
Decision guide for CTOs and founders with cost ranges.
Read moreReact Native app development cost in 2026
EUR/USD ranges by app type and MVP timeline.
Read moreHow to choose a React Native development company
Criteria, red flags and RFP questions for CTOs.
Read moreReact Native agency in Europe
Partner checklist, Poland nearshore and GMI engagement model.
Read moreNearshore software development from Poland
CET overlap, cost vs USA and engagement risks.
Read moreCommerce mobile app development
RN + headless backend, costs and SFD case.
Read moreCase study: SFD loyalty app
100,000+ downloads, 4.9★ App Store - production React Native reference.
Read moreCase studies
See our implementations
Projects that show our approach and experience
Client testimonials
They trusted us and see results.
Case study
100 000+
SFD app downloads and a 4.9 App Store rating.
Proof from a real launch.
Product strategy, UX, and development combined in an app used by customers every day.
Service scope
What does the service include?
Below is an example scope of work that we adjust to the stage and goals of the project.
Product workshops and needs analysis
UX/UI for iOS and Android
Integrations with external systems
Deployment and publication in stores
Monitoring and development after launch
Analytics and conversion optimization
Ready to start?
Schedule a free consultation and learn how we can help with your project. After our DDT process (Discovery, Design & Technology), we offer a price guarantee and a fixed-price agreement.
Preliminary estimate in 48h
Fixed price after DDT — price guarantee
No commitment
We can sign NDA
Contact
Let's talk
about the project.
Have an app idea or need technological support? Write to us — we'll prepare a preliminary analysis and estimate within 48h. Projects that go through our DDT process (Discovery, Design & Technology) come with a price guarantee and a fixed-price agreement — a key differentiator for us.
Write to us[email protected]
gmi.software Sp. z o.o.ul. Jana Heweliusza 11 / 81980-890 Gdansk, Poland
© 2026 gmi.software Sp. z o.o.