📈Last 7 days+328 installs — 18% slower than the week before (+398) · 42/day since Oct 7
🏆Among Medical appstop 1% by installs gained this week (72 peers growing)
⭐Rating steady at ★ 4.56 since Oct 7
🛠Updatesactively updated · updated 23 days ago · every ~192 days (2 updates tracked)
🔁Ownership renamed from Fonlow to Zijian · Nov 7, 2026
Installs since launch
+1,295 installs
· +5 ratings
since Oct 7
Update history
3.0Oct 19, 2026 · seen Oct 28, 2026
1. For plotting trend graphs, VA notation can be LogMAR, MAR, VAS, or Five Point.<br>2. Support the Five Point VA notation.<br>3. Support exporting scores for all testees as a JSON file.
2.8.2Apr 9, 2026 · seen Oct 18, 2026
1. Support 16KB Memory Page Sizes.<br>2. arm64-v8a only.<br>3. Adjust the privacy policy to clearly state the data usage.
Tumbling E Chart is a medical app by Zijian with 50,000+ downloads (about 75K estimated). +328 installs in the last 7 days. Rated 4.6 from 89 ratings. Released Feb 26, 2019. Install growth, rank history, SDKs and ad networks.
From the store listing: “Measure distance visual acuity to find early signs of myopia”
