Vernier Caliper

Name: Vernier Caliper
Rating: 4.48 (13178 reviews)
Author: Octavian Fometescu

Octavian Fometescu

★ 4.5 (13,178 ratings)

⬇ 500,000+ downloads

Est. actual: 753,982

Free

Released: Aug 15, 2018

IAP: $6.00 - $114.99 per item

Contains ads

Rated: Everyone

Signals

4 this week · 1 positive · 1 warning All of this week's signals →

📈Last 7 days +2.7K installs — 33% slower than the week before (+4K) · 424/day since Sep 29
🏆Among Education apps top 1% by installs gained this week (2143 peers growing)
⭐Rating steady at ★ 4.48 since Sep 29
🛠Updates quiet · updated 63 days ago

Installs since launch

+16,547 installs · +177 ratings since Sep 29

Update history

66.5.14 Sep 11, 2026 · seen Sep 29, 2026

Only the current version so far — new entries appear as the app ships updates.

Vernier Caliper is an education app by Octavian Fometescu with 500,000+ downloads (about 754K estimated). +2.7K installs in the last 7 days. Rated 4.5 from 13K ratings. Released Aug 15, 2018. Install growth, rank history, SDKs and ad networks.

From the store listing: “Precision Measurement Simulator is an interactive virtual metrology laboratory for learning how to read and use vernier calipers, micrometers, dial indicators, comparators, gauge blocks and angle-measurement instruments. Practice precision measurement with realistic virtual tools inspired by instruments used in…”