# uax.io — Full Documentation > uax.io is an indie studio building simple, focused utility apps for Android & iOS since 2016. All apps are privacy-first with zero tracking, zero analytics SDKs, and zero server-side data collection. 2M+ total downloads. --- ## My IP — IP Address & Network Info **URL**: https://uax.io/my-ip **Platforms**: Android, iOS **Rating**: 4.6★ (150+ reviews) **Price**: Free My IP is a network diagnostic tool that instantly displays your public IPv4/IPv6 address, ISP, geolocation (city, country, coordinates), and VPN/proxy detection status. Built-in ping and traceroute tools allow real-time network path analysis. The app requires no account and processes all data locally — your IP address is never stored on any server. ### Features - Public & local IP address display (IPv4 and IPv6) - ISP, city, country, and coordinate geolocation - VPN and proxy detection - Built-in ping tool with latency statistics - Traceroute with hop-by-hop path analysis - Zero permissions required for core features ### FAQ - **How do I check my public IP on my phone?** Install My IP by uax.io. Your public IP, ISP, city, and country appear instantly — no taps needed. - **Can My IP detect VPN connections?** Yes. Built-in VPN and proxy detection shows whether your connection is routed through a VPN. - **Does My IP store my data?** No. All processing is local. Your IP address is never transmitted to uax.io servers. --- ## Audio Extractor — Video to MP3 Converter **URL**: https://uax.io/video-to-mp3 **Platform**: Android **Rating**: 4.5★ (1000+ reviews) **Downloads**: 500K+ **Price**: Free **Size**: Under 1.5 MB Audio Extractor converts any video file to MP3 audio. It supports 20+ video formats including MP4, MKV, MOV, WebM, FLV, WMV, AVI, 3GP, and VOB. The extraction engine processes files locally with no upload required. Features include a built-in audio player, background processing, and one-tap sharing via WhatsApp, Telegram, email, or Bluetooth. ### Features - Lightning-fast extraction engine - 20+ input formats (MP4, MKV, MOV, WebM, FLV, WMV, AVI, 3GP, VOB, etc.) - Built-in audio player for preview - Background processing mode - One-tap sharing (WhatsApp, Telegram, email, Bluetooth) - Under 1.5 MB app size — no bloat ### FAQ - **What video formats does Audio Extractor support?** MP4, MKV, MOV, WebM, FLV, WMV, AVI, 3GP, VOB, and 15+ more formats. - **Is Audio Extractor free?** Yes, completely free with no watermarks or file size limits. - **Does it work offline?** Yes. All processing happens locally on your device. --- ## Screen Test — Display Diagnostics **URL**: https://uax.io/screen-test **Platforms**: Android, iOS **Rating**: 4.3★ **Price**: Free **Size**: Under 1 MB Screen Test helps you check your phone's display for dead pixels, touch responsiveness, and multi-touch support. Essential for buying or selling used phones. The app cycles through solid colors (red, green, blue, white, black) to reveal stuck or dead pixels, provides a drawing canvas to verify touch response across the entire screen, and tests simultaneous touch point capacity. Requires zero permissions. ### Features - Dead pixel test with solid color cycling - Touch responsiveness test with drawing canvas - Multi-touch point counter - True full-screen mode for maximum visibility - Zero permissions required - Under 1 MB app size --- ## Phone Info — Device Diagnostics **URL**: https://uax.io/phone-info **Platform**: Android **Price**: Free Phone Info displays real-time hardware information including CPU model, clock speed, architecture, RAM usage, internal/external storage, battery health, temperature, and all available sensor data (accelerometer, gyroscope, magnetometer, proximity, light, etc.). All data is read locally and never transmitted. ### Features - CPU model, cores, clock speed, architecture - RAM total and available - Storage breakdown (internal + external) - Battery level, health, temperature, voltage - Full sensor inventory with live readings - Ultra lightweight with minimal battery impact --- ## JSON Formatter & Query — Chrome Extension **URL**: https://uax.io/json-formatter **Platforms**: Chrome, Edge, Brave (Chromium-based browsers) **Price**: Free **Chrome Web Store ID**: ocmnbelognclfidjhmfdjpkbpmkmhfbe JSON Formatter & Query is a browser extension for viewing, querying, and analyzing JSON responses directly in your browser. Features include collapsible syntax-highlighted tree view with key counts and type colors, dot-notation path queries (e.g., `config.database.host`), SQL-style queries (SELECT, WHERE, ORDER BY, LIMIT), and MongoDB-style filter queries ($gt, $in, $regex). Supports both dark and light themes. Zero data collection — all processing happens in-browser. ### Features - Collapsible tree view with syntax highlighting - Path query with dot notation - SQL query (SELECT, WHERE, ORDER BY, LIMIT) - MongoDB query ($gt, $in, $regex, nested conditions) - Dark and light themes - 100% offline — all processing in browser --- ## Water Tracker — Hydration Reminder & Log **URL**: https://uax.io/water-tracker **Platform**: iOS **Price**: Free **App Store ID**: id6761348554 Water Tracker helps you build consistent hydration habits with one-tap water logging, customizable cup sizes (ml or fl oz), smart hourly reminders with silent mode (10 PM – 7 AM), calendar history view, 14-day hydration charts, home screen widget (iOS 17+), and Siri shortcut support. Available in 20 languages. All data stored locally on device. ### Features - One-tap water intake logging - Customizable cup sizes (ml / fl oz) - Smart reminders with quiet hours (10 PM – 7 AM) - Calendar view and 14-day history chart - 100% private — no accounts, no tracking --- ## About uax.io uax.io is a one-person indie studio founded in 2016. Our philosophy: build small tools that solve one problem well, with zero bloat and maximum privacy. All apps are free, require no accounts, and collect no personal data. Available on Google Play and the App Store. **Contact**: dev@uax.io **Support**: https://uax.io/support **Blog**: https://uax.io/blog