
JMaster
Mobile App
We build mobile apps and web services that solve business problems
From idea to launch — we design, develop, and maintain mobile apps and web services. All in-house, so you can focus on growing your business.
Our focus is cross-platform apps. Easy to maintain, reducing development time and cost by up to 40%.
Cross-platform and native apps for iOS and Android
Flutter, iOS/Swift, Android/Kotlin
High-load APIs and microservices
Ruby, Node.js, Rust, NestJS, Fastify
Modern web applications and SaaS platforms
Next.js, NuxtJS, React
AI integrations and voice agents
OpenAI, Claude, Voice Agents
App Store and Google Play optimization. Organic installs growth
App Store, Google Play, A/B Testing
Internet of Things solutions: smart home, wearables, industrial IoT
BLE, MQTT, AWS IoT, Flutter
Transparent and structured approach to every project
Studying business, audience and competitors. Forming task understanding.
Result: Brief, user map, strategy
Creating prototypes and UI/UX design. Approving every screen.
Result: Figma mockups, UI kit, prototype
Writing clean, scalable code. Regular demos and feedback.
Result: Working product, code repository
QA on all devices. Fixing bugs before release.
Result: QA report, stable build
Store publishing, production launch, analytics setup.
Result: App in stores, analytics setup
Updates, monitoring, quick issue resolution.
Result: Stable product, new features
We bring expertise, efficiency, and proven results to every project.
We're lean and remote — you're not paying for a fancy office and overpriced expenses.
We're lean and remote — you're not paying for a fancy office and overpriced expenses.
Young and easy-going team. Quick decisions, minimal approvals needed.
Young and easy-going team. Quick decisions, minimal approvals needed.
We value your time and ours — expect your product on time while staying in the loop.
We value your time and ours — expect your product on time while staying in the loop.
A team of specialists with experience at the best product companies.
A team of specialists with experience at the best product companies.
Thoughtful design and UX is the foundation of every project.
Thoughtful design and UX is the foundation of every project.
Focus on business value, not feature count.
Focus on business value, not feature count.
2x faster development powered by AI tools.
2x faster development powered by AI tools.
Projects delivered
Years in the market, since 2014
Longest client partnership
Team members
The people who build your product

Founder & CEO
Lead Developer
UI/UX Designer
Backend Developer
Project Manager
We build mobile and web applications for businesses — from startups to enterprise solutions. We focus on code quality, deadlines, and user experience.
«We don't just write code — we build products that work for our clients' business. Over 10+ years, we've learned to listen and turn ideas into working solutions.»
— Alexander
Founder & CEO

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