📈Last 7 days+118 installs — 26% faster than the week before (+94) · 13/day since Oct 7
🏆Among Tools appstop 15% by installs gained this week (1062 peers growing)
🛠Updatesquiet · updated 63 days ago
Installs since launch
+430 installs
since Oct 7
Update history
1.2.4Sep 8, 2026 · seen Oct 21, 2026
Framework and Security Updates.
Only the current version so far — new entries appear as the app ships updates.
Cert Checker is a tools app by Verein Österreichisches Sprachdiplom Deutsch with 1,000+ downloads (about 5K estimated). +118 installs in the last 7 days. Released Dec 22, 2023. Install growth, rank history, SDKs and ad networks.
From the store listing: “Easily check the authenticity of ÖSD certificates.”