Installing Flechs Sheets on iPadOS / iOS

Flechs Sheets (https://sheets.flechs.net) can be installed on iDevices* for full-screen and offline use. (Though the unit list requires a network connection.) * While this does include iPhones, the experience of using marking features on phone-sized screens is not good enough for me to recommend. That said, it's better than nothing if you're at a game-table and don't have a sheet on hand and browsing and printing units works fine.