📈Last 7 days+77 installs — 1% slower than the week before (+78) · 9/day since Oct 9
🏆Among Tools appstop 16% by installs gained this week (1273 peers growing)
⭐Rating★ 2.21 → 2.36 since Oct 9
🛠Updatesquiet · updated 101 days ago
Installs since launch
+290 installs
· 0 ratings
since Oct 9
Update history
1.9.7Aug 4, 2026 · seen Oct 21, 2026
Supported Android 16
Only the current version so far — new entries appear as the app ships updates.
Co Checker is a tools app by Meter App with 10,000+ downloads (about 35K estimated). +77 installs in the last 7 days. Rated 2.4 from 44 ratings. Released Nov 23, 2015. Install growth, rank history, SDKs and ad networks.
From the store listing: “CO Measurement Chekcer using audio jack”