Virtual PAPI vs MachDB

Pilots love runways with visual descent guidance, such as PAPI or VASI, but unfortunately they don't exist everywhere. This app provides an adjustable visual descent guidance for every runway on the planet. The pilot can select an airport, a runway, adjust the desired descent angle and the aiming point, then Virtual PAPI will create a glide slope indicator style. The glide slope will provide accurate vertical guidance to the aiming point from any direction, 360 degrees, providing a valuable guidance for any type of approach, like base entries, short approaches, straight-ins, etc. The app comes with over 30 thousand runways in its offline database, and more will be added as they are discovered. The app works completely offline and never tries to use the internet. All it needs is access to your location. Virtual PAPI is and free and open source, with all the code available on GitHub.

MachDB allows you to download and transfer Garmin avionics database updates to an SD card in seconds using your iPhone or iPad for fast updates in the field. All you need is your iPhone or iPad and a standard USB-C SD card reader. No proprietary hardware required! Download fast over Wi-Fi or Cellular connections. MachDB is compatible with all modern Garmin avionics that use SD cards or USB keys for database updates, using your existing Jeppesen or Garmin database account. Supported avionics include: -Garmin G1000, G1000 Nxi, Perspective and Perspective + -Garmin G3000 and Perspective Touch -Garmin GTN 600 and 700 Xi -Garmin G500, G600 and G700 -Garmin G3X and G2000 -Garmin GI 275 Supported Database Providers: -Jeppesen -Garmin