📈Last 7 days+19 installs — 138% faster than the week before (+8) · 1/day since Oct 9
🏆Among Tools appstop 31% by installs gained this week (1000 peers growing)
🛠Updatesdormant · updated 351 days ago
Installs since launch
+40 installs
since Oct 9
Update history
2.3Nov 25, 2025 · seen Oct 21, 2026
Only the current version so far — new entries appear as the app ships updates.
CO2 Warner is a tools app by Siegrist_GmbH with 500+ downloads (about 858 estimated). +19 installs in the last 7 days. Released Nov 2, 2021. Install growth, rank history, SDKs and ad networks.
From the store listing: “Warning device for displaying critical CO2 gas concentrations”
