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apps people love to use

Adopnex builds high-quality mobile applications — designed, developed, and shipped with care. Flutter, native, cloud.

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01 — Mobile

Native-feel apps with Flutter

One codebase, two platforms, zero compromise. Beautiful, performant iOS and Android apps that feel right at home on every device.

  • 60fps animations & native scrolling
  • Offline-first with local storage
  • Deep platform integration
99.98%uptime
02 — Cloud & Backend

Scalable infrastructure, done right

Firebase, Cloud Functions, REST APIs and real-time data. Built to handle growth without rewrites.

  • Real-time sync & notifications
  • Authentication & security
  • CI/CD from day one
Writing

Articles & technical deep dives

Long-form deep dives on Dart concurrency and Bluetooth Low Energy security — drawn from real production work.

BLE Fundamentals
BLE · Part 114 min read

BLE Fundamentals — Connection Lifecycle & Platform Quirks

Roles, GATT, MTU, and what Android & iOS quietly disagree on. A measured timeline of a real BLE connection.

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Building a Secure Channel over BLE
BLE · Part 213 min read

Building a Secure Channel over BLE

X25519 ECDH, HKDF, and an offline PKI — building an authenticated, MITM-resistant channel from scratch.

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Encrypting Every Packet
BLE · Part 311 min read

Encrypting Every Packet — AES-GCM, Replay & Rate Limiting

AES-256-GCM, nonce design, AAD, sliding-window replay detection, and rate limits as the last line of defense.

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Built with technologies we trust

Flutter Dart Go Kotlin Swift Firebase Google Cloud REST APIs CI/CD

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