📈Last 7 days+8 installs — 20% slower than the week before (+10) · 1/day since Oct 9
🏆Among Tools appstop 44% by installs gained this week (942 peers growing)
🛠Updatesquiet · updated 63 days ago
Installs since launch
+25 installs
since Oct 9
Update history
1.0Sep 9, 2026 · seen Oct 17, 2026
Sample and population standard deviation with step-by-step working.
Only the current version so far — new entries appear as the app ships updates.
Standard Deviation Calculator is a tools app by TQtech with 50+ downloads (about 51 estimated). +8 installs in the last 7 days. Released Sep 8, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “Standard Deviation Calculator: sample & population SD, every step shown”