Strilets vs DRIN

The Strilets ballistic calculator is a specialized program designed for sportsmen and hunters to assist in the calculation of bullet trajectory characteristics and making the necessary adjustments in the aiming process. For shooters who use custom ammunition, the ammunition parameters can be entered manually. While calculating corrections, the following data are taken into account: - Distance to the target; - Target angle; - Atmospheric pressure, environmental temperature and humidity, powder temperature; - Ballistic characteristics of the bullet; - Wind direction; - Derivation, Coriolis & Magnus effects. The Strilets will surprise you with the following: ● The application database has 90 calibers, more than 600 weapons, 800 scopes, thermal scopes, and more than 3000 bullets; ● The app offers a choice of several subscription formats, the functionality of which can significantly expand your shooting potential. Among these features: ○ The ability to create a custom weapon, custom ammunition, and a custom scope; ○ "Shooting at an angle" ○ "Trajectory setting" ○ "BC calculation" ○ "Direct shot calculator" ○ "Bullets ballistics comparison" ○ "Multiple targets" ○ "Drag function calibration" ○ The application can be connected to the Kestrel 5xxxx series weather stations or download weather data from the Internet. And there are many more features! In addition, we are constantly working on developing new useful additions so that you can hit the target anywhere and under any circumstances! Terms of use - https://download.strilets.tech/privacypolicy/tou_en.html

DRIN is the all-in-one offline toolkit for FPV racing pilots, long-range builders 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.