DRIN

Utilities

Free · Designed for iPad. Not verified for macOS.

DRIN is the all-in-one offline toolkit for FPV racing pilots, long-range builders, military operators and hobbyists. Whether you're planning your first 5" quad or maintaining a fleet of 10" long-range platforms - DRIN has the tools you need, no internet required. 17 OFFLINE CALCULATORS • Flight time & thrust-to-weight ratio • Battery capacity, charge time & health (mAh → Wh) • ESC & propeller thrust • Ohm's law & link budget • Signal distance, VSWR loss & dBm to Watts conversion • Dipole design, antenna angle & radio horizon • VTX frequency table & Rx/Tx intermodulation checker All calculators work fully offline — in the field, at the bench, anywhere. PREFLIGHT CHECKLISTS • Separate checklists for FPV, fixed-wing and preflight inspection • Fully offline — never miss a step, even without signal COMPONENT FINDER WITH LIVE PRICES • Browse and compare drone parts sourced from AliExpress — only components with verified quality • Auto-generated build recommendations for 5", 7", 8", 9" and 10" drones • Build your own setup from recommended parts, or bookmark components to a local database • Price updates delivered directly in the news feed FLIGHT LOG & BLACKBOX IMPORT • Log every flight manually or import directly from Betaflight Blackbox • Track: voltage start/end/min, flight duration, temperature, altitude, distance, battery health • Assign logs to specific drones and batteries • Visualize your data with charts: voltage drop, flight duration, distance & altitude, flight type breakdown BETAFLIGHT CAMERA & VTX PRESETS • Ready-to-use Betaflight configurations for popular cameras and VTX modules • Save your preferred presets for offline access KNOWLEDGE BASE & NEWS • Short guides and life hacks written by pilots who fly daily • Component overviews, setup tips and best practices • News feed with firmware releases and price updates • Save any article offline for field reference Available in English, Ukrainian, Spanish and Portuguese.

Ratings & Reviews

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What's new in version 1.2.1: — Flight Log: add entries manually or import directly from Betaflight Blackbox — Flight charts: voltage drop, flight duration, distance/altitude, flight type breakdown — Radio horizon calculator: added return signal calculation from the drone — Bug fixes and stability improvements

Version 1.2.1

The developer, Ihor Bochko, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Ihor Bochko
Size
  • 45.9 MB
Category
  • Utilities
Compatibility
Requires iOS 15.6 or later.
  • iPhone
    Requires iOS 15.6 or later.
  • iPad
    Requires iPadOS 15.6 or later.
  • iPod touch
    Requires iOS 15.6 or later.
  • Mac
    Requires macOS 12.5 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © 2024 drin
  • Developer Website
  • Privacy Policy

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