📈Last 7 days+51 installs — 26% slower than the week before (+69) · 7/day since Oct 9
🏆Among Tools appstop 19% by installs gained this week (1137 peers growing)
⭐Rating steady at ★ 4.90 since Oct 9
🛠Updatesactively updated · updated 7 days ago · every ~154 days (2 updates tracked)
Installs since launch
+220 installs
· 0 ratings
since Oct 9
Update history
2.01Nov 5, 2026 · seen Nov 8, 2026
1. Added sample ID and project management<br>2. Added barcode and QR code scanning for sample ID<br>3. Added data filtering and search<br>4. Added PDF data export<br>5. Added Bluetooth printing report (printer sold separately)
1.9.22Jun 4, 2026 · seen Oct 18, 2026
Fixed the UI bug in privacy terms.
ZenTest-Smart Water Tester is a tools app by Apera Instruments with 10,000+ downloads (about 15K estimated). +51 installs in the last 7 days. Rated 4.9 from 276 ratings. Released Aug 14, 2018. Install growth, rank history, SDKs and ad networks.
From the store listing: “Smart Tester for pH/conductivity/TDS/Salinity/Resistivity/ORP/Temperature”