gmi.software

GMI Software is a 30-person mobile development shop based in Gdańsk, Poland, with 16+ years of experience and over 120 completed projects. They design and build iOS and Android apps—mostly cross-platform using React Native and Expo—for retail, logistics, education, fitness, healthcare, and finance. The company differentiates itself by offering fixed-price guarantees after a structured discovery process (DDT: Discovery, Design & Technology), giving clients certainty on budget before development begins. All source code and copyright transfer to the client after launch; no vendor lock-in.

Services and capabilities

GMI's core offering is mobile app design and development. They handle the full lifecycle: discovery workshops to validate ideas, UX/UI design with prototyping, development, testing, app store publication (iOS and Android), and post-launch support with maintenance packages and SLAs. They also offer mobile solutions consulting, UX and performance audits, prototypes and MVPs, server-side API development, and integrations with external systems (CRM, ERP, e-commerce platforms).

They specialize in React Native and Expo for cross-platform work, which they claim reduces production and maintenance costs by roughly 30–40% compared to native codebases, without noticeable performance loss. They build offline-first architectures with queued actions and conflict handling for field workers with weak connectivity. Push notifications, in-app inbox, camera/scanning, Bluetooth, NFC, GPS, and other hardware integrations are standard capabilities. They use TypeScript, NestJS for backends, and DigitalOcean for cloud infrastructure.

GMI also works with e-commerce platforms (Shopify, Woo, PrestaShop, Medusa, Comarch, idoSell) and recently integrated AI features into projects. They run JavaScript OTA (over-the-air) updates via EAS without requiring full app store review cycles.

Estimated project budgets from their FAQ: MVP loyalty app runs 20–30k USD; e-commerce with integrations 40–60k USD; full mobile CRM 50–75k USD. Standard implementation is 3–6 months for a production MVP.

Notable work

SFD, a sports nutrition retailer, launched a loyalty and shopping app that hit 100,000+ downloads in its first month and maintains a 4.9 App Store rating. The app was nominated for Mobile Trends Awards 2025 (Commerce category). CEO Mateusz Pazdan said he felt "completely understood" after conversations with GMI's Mikołaj and praised the rapid visualization of ideas.

EMKA S.A., a medical waste management company, deployed two apps: EMKA Mobile (for client scheduling and payment) and a logistics control tower for warehousing and shipment tracking. The EMKA Mobile app saw 5,000+ downloads in one month across iOS and Android. Board Advisor Sławomir Rdest noted GMI "stood out during the tender process" with a refreshing approach and delivered the first project "flawlessly," building a multi-year partnership.

Other live projects include Mój Świat Książki (bookstore loyalty app with coupons and catalog); Hi! School (learner-first e-learning platform, ranked top 1 in Education category); Berg System (mobile CRM for financial advisors); and several B2B logistics suites. Hublock founder Maciej Grimmling said GMI built Delivioo and later Hublock Pro, Hublock Connect, Hublock Drive, and Hublock Stream (AI), describing the engagement as a trust-based escalation from a single task to ongoing partnership.

How they work

GMI follows a six-step process: (1) Discovery & Workshops to learn business needs and define scope; (2) Design & Prototyping with UX/UI and user testing; (3) Development with focus on performance, security, and code quality; (4) Testing & Optimization across devices; (5) Deployment & Publication in app stores with launch support; (6) Support & Development with monitoring and continuous updates.

Their engagement model is either fixed-price (after DDT completion) or time-and-materials. They promise preliminary estimates within 48 hours of inquiry and response within 24 hours. Projects that complete the DDT phase come with a price guarantee and fixed-price agreement—a differentiator they emphasize repeatedly. Clients own 100% of the source code. GMI offers on-site consultations in six Polish cities (Gdańsk, Warsaw, Kraków, Poznań, Wrocław, Rzeszów).

Team and credentials

GMI has 30 team members. They hold a 4.9 rating on Clutch. The company was founded 16+ years ago (exact year not stated in source). They list 50+ apps currently live in stores and 120+ projects completed. The company is headquartered at ul. Jana Heweliusza 11/819, Gdańsk, 80-890 Poland (registered as gmi.software Sp. z o.o., NIP: 5252816287, KRS: 0000830003). No formal certifications (ISO 27001, SOC 2) are mentioned in the source material, though they reference "proven practices and testing of critical paths" for security and data protection compliance.