Step 01
Discovery Workshops
We validate your idea before you spend a penny. We define goals, target audience, and MVP so the first version hits the mark.
5.0
C
4.9
Scalable e-commerce and mobile apps. With a price guarantee.
We design B2B/B2C systems on MedusaJS and React Native. From apps with 100,000+ downloads (including SFD) to deep ERP/WMS integrations. Full control of code and architecture with no vendor lock-in.
- Fixed-price guarantee after Discovery (DDT)
- Architecture ready to integrate with any ERP/WMS
- You own 100% of the source code after go-live
No commitment • Real conversation • Initial estimate within 48h
Technologies we scale on:
PostgreSQL • DigitalOcean • NestJS • Next.js • Expo • TypeScript • React • Medusa
Campaign sites and tailored landing pages for major-brand marketing programs.
A sales workspace that keeps offers, customers, and daily follow-ups in one place.
Loyalty app with mobile commerce for a sports nutrition retail chain.
Case study
Medical waste tracking plus return logistics for hospitals and clinics.
Case study
Reading and audiobooks in one ecosystem, tuned for everyday mobile use.
E-learning platform paired with a mobile companion for learning foreign languages.
B2B logistics and supply chain suite on the web and as a mobile companion.
Case study
QA workflows plus an offer and product configurator built for dealer networks.
Learner-first mobile app so online students keep coursework within thumb reach.
Field-ready mobile CRM tailored to financial and insurance advisors.
Case study
Logistics control tower connecting warehousing, transport, and shipment status.
Operations software for drilling rigs and harsh offshore environments.
Performance, reliability, and SEO-focused engineering for the sales website.
3D configurators and sales tooling for solar systems tailored to the Norwegian market.
Case study
Precision mobile workflow for cutting phone films, synced with the in-store plotter.
Flagship marketing site orchestrating sales for coding courses and bootcamps.
Portfolio workspace for properties, land banks, and investment-grade development lots.
Equipment registry and job-site fleet control for construction programs.
Our projects
Behind every successful app stands
a well-thought-out strategy.
See how we solve specific business problems together with clients - from the first analysis to a working product that really works and engages users.
Top 1on App Store 24h after launch
Świat Książki
Mój Świat Książki is a loyalty and catalog app for a bookstore chain: points, coupons, app-only promotions, and in-store book availability.
RetailLoyaltyCatalog
4.9App Store rating
SFD
SFD is more than just a shopping app. It's a comprehensive loyalty app designed to engage and build community.
E-commerceLoyaltyFitness
5000+Downloads in 1 month
EMKA
EMKA Mobile is a mobile app for clients that facilitates work with pickup schedules and payments. It streamlines medical waste management and automates processes.
Waste managementSchedulesPaymentsBDO
iOS & AndroidApp available on
BERG SYSTEM
Berg System is a CRM app in mobile version. It provides access to key data and functions, enabling business management from anywhere.
CRMCalendarPlanningManagement
Top 1In Education category
HI!
Hi School is not another boring educational app. It's a digital school guide designed with how you really learn today in mind.
For kidsLearningAI Chat
IntegrationsApple, Garmin, Google, Strava
JoggFit
Virtual runs with real medals - activity tracking paired with a physical reward after each challenge.
FitnessRunningMedals
No commitment • Real conversation • Initial estimate within 48h
Podcast on YouTube
Get to know us - Podcast by GMI
We share real experience from building digital products: mobile apps, product strategy, technology, and practical project decisions. Watch the episodes and see how we think and work.
01
Mobile App: Your Secret Weapon in Building Customer Loyalty | GMI Podcast
Watch the episode on YouTube
02
React Native: Business Benefits of Cross-Platform Mobile App Development | GMI Software
Watch the episode on YouTube
Open the podcast playlist
Social proof • Expert conversations • Behind the scenes
React Native
One technology, two systems - faster to goal with React Native
We create modern mobile apps in React Native (Expo) that work simultaneously on iOS and Android. Shorter implementation time, lower costs, and easier maintenance - without compromising performance and stability.
Development speed
One repository, two platforms. We create the app once, run it on iOS and Android. Shorter development time = faster ROI.
Performance and battery efficiency
Thanks to React Native and Expo, apps are lightweight and optimized. No compromises in stability.
Integration ready
We seamlessly connect with your systems - API, CRM, ERP, or external solutions. We have experience with integrations even with difficult or non-standard environments.
Stability and growth
Build your app on solid foundations. React Native supported by Meta, Expo accelerating development.
Security
Proven practices and testing of critical paths. Data protection and compliance with requirements.
No commitment • Response within 24h • Preliminary estimate in 48h
Artificial Intelligence
Integrate AI and exceed
user expectations
From process optimization to intelligent recommendations - we integrate artificial intelligence in projects to create modern, effective, and future-proof solutions.
No commitment • Response within 24h • Preliminary estimate in 48h
We integrate with
ShopifyWooPrestaShopshoperIdoSell.COMARCHmedusa
Our Offer
Professional development of
mobile apps for iOS and Android.
We design and implement mobile apps for Android and iOS, combining the latest technological solutions with in-depth market analysis. From concept and strategy to the final product - we take care of every detail so you can focus on growing your business.
Mobile solutions consulting
We'll help you match app features to real user needs.
UX and performance audits
We'll identify what's bothering users and how to fix it.
Conceptual workshops (Product Design)
Develop an effective app concept with us based on real data.
Prototypes & PoC & MVP
Create a test version, validate your idea, and reduce risk.
Mobile apps iOS & Android
We design fast, modern apps tailored to your industry.
External solutions integrations
We connect your app with systems you already know and use.
Server applications (API)
We build secure and scalable technical infrastructure for your app.
Support and maintenance
We take care of development and smooth operation of your app after deployment.
Ready to get started?
Schedule a free consultation and get a preliminary quote within 48h. No commitment.
Response within 24h • Initial estimate in 48h • DDT before code • No commitment
How we work
From concept to success in App Store.
Clear stages, weekly rhythm, and steady communication—from first call to the stores.
Step 02
UX/UI Design
We design an interface users will love. Mockups and prototypes show how the app will work in practice.
Step 03
Development
You see progress every week, no surprises. We focus on code quality and testing so the product is stable and secure.
Step 04
Launch & Growth
We monitor results and grow what works. Store launch, data analysis, and continuous improvements.
Knowledge base
Have questions?
We have answers.
We've gathered the most frequently asked questions about cooperation, costs, and technology.
Didn't find an answer?
Schedule a free consultation and get a preliminary estimate within 48h. Ask about our DDT process and fixed-price guarantee. No commitment.
Get a free estimateResponse within 24h • Preliminary estimate in 48h
How much does it cost to create a mobile app?
We price each project individually - budget depends on scale, functionality, and technology. Approximate ranges (examples): employee / field technician app: PLN 60-120k, 2-4 months (often feasible as a PWA instead of a native app - if that is enough, we will recommend a cheaper option); consumer MVP (loyalty, club): PLN 80-120k, 3-4 months; e-commerce app with integrations: from PLN 150k, 4-6 months; enterprise / mobile CRM: from PLN 200k, 5-6 months. These are indicative only; we recommend a free consultation for a quote tailored to your scope.
Can we get a fixed price?
Yes — it's one of our differentiators. We run projects through our DDT pipeline: Discovery, Design & Technology. Once that phase is complete, the scope is defined precisely enough to offer a price guarantee under a fixed-price agreement — so you avoid open-ended budget risk, which is rare among software houses.
How long does the implementation process take?
Standard implementation time is usually 3-6 months for the first production version (MVP). This time includes Discovery workshops, UX/UI design, programming, and testing. We always present a detailed schedule after analyzing requirements.
Do you provide support after launch?
Yes, we offer maintenance packages and SLA agreements. We monitor app performance, take care of security updates, and adapt the product to new versions of iOS and Android systems so your app runs smoothly for years.
Will I own the app code?
Of course. After project completion and payment, we transfer full copyright and source code. You own what you pay for, and we don't lock you in (vendor lock-in).
Native or Cross-platform (React Native)?
In most cases, we recommend cross-platform technologies like React Native. They allow creating one codebase that works on both iOS and Android, reducing production and maintenance costs by about 30-40% without noticeable performance loss.
Consultations in your city
We'd be happy to meet for an on-site consultation at a convenient business location for you.
Tricity
Warsaw
Krakow
Poznan
Wroclaw
Rzeszow
Schedule a free consultation
No commitment • Preliminary estimate in 48h • Fixed price after DDT
16+
Years of experience
120+
Completed projects
30
Team members
4.9★
Clutch rating
Kontakt
Porozmawiajmy
o projekcie.
Masz pomysł na aplikację lub potrzebujesz wsparcia technologicznego? Napisz do nas — przygotujemy wstępną analizę i wycenę w 48 godzin. Po rozpoznaniu zakresu, projektu i technologii możemy zaproponować gwarancję ceny oraz umowę ze stałą ceną; to nasz wyróżnik na rynku.
Napisz do nas[email protected]
Odwiedź nas
GD
gmi.software Sp. z o.o.ul. Jana Heweliusza 11 / 819
80-890 Gdańsk, Polska
80-890 Gdańsk, Polska
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