Interlib Dev
Software company · United States

We build focused,
privacy-respecting apps.

Interlib Dev designs, builds and publishes its own mobile, web and browser applications — and develops custom software for business clients.

Products

Apps we build and publish ourselves.

Nooktune logo

Nooktune

Browser extension · Chrome

A cozy corner for everything you listen to: a player with favorites, playlists and listening history that keeps playing in the background.

  • Background playback with queue and volume control
  • Favorites, playlists and history synced to your account
  • Free, with a Premium plan coming
Savio logo

Savio

Mobile app · Android

A fast, private way to track daily expenses — add a spend in seconds and see where your money goes.

  • Works fully offline, no account required
  • Data stays on your device
  • 9 currencies, 10 languages, light and dark themes

Services

We also build software for businesses — from idea to store release.

📱

Mobile apps

Cross-platform iOS and Android apps with Flutter, from prototype to production.

🧩

Client-server systems

APIs, databases and admin panels with Node.js, TypeScript and PostgreSQL.

🌐

Web & browser extensions

Fast websites, web apps and Chrome extensions built for Manifest V3.

🚀

Store launch

Publishing to Google Play, App Store and Chrome Web Store, including in-app subscriptions.

Get in touch

Questions about our apps, partnerships or a project in mind? Write to us.

hello@interlib.dev