T991 Scientific Calculator

Name: T991 Scientific Calculator
Rating: 3.5 (68 reviews)
Author: Jack Yu(于)

Jack Yu(于)

★ 3.5 (68 ratings)

⬇ 10,000+ downloads

Est. actual: 19,893

Released: Jun 13, 2024

No in-app purchases

No ads

Signals

4 this week · 2 positive · 1 warning All of this week's signals →

📈Last 7 days +220 installs — 18% slower than the week before (+269) · 32/day since Oct 6
🏆Among Tools apps top 10% by installs gained this week (1167 peers growing)
⭐Rating steady at ★ 3.50 since Oct 6
🛠Updates actively updated · updated 11 days ago · every ~12 days (4 updates tracked)

Installs since launch

+1,036 installs · +2 ratings since Oct 6

Update history

1.27 Nov 2, 2026 · seen Nov 7, 2026

fix bug

1.26 Oct 23, 2026 · seen Oct 28, 2026

fix bug

1.24 Oct 15, 2026 · seen Oct 17, 2026

fix bug

1.22 Sep 28, 2026 · seen Oct 6, 2026

fix bugs

T991 Scientific Calculator is a tools app by Jack Yu(于) with 10,000+ downloads (about 20K estimated). +220 installs in the last 7 days. Rated 3.5 from 68 ratings. Released Jun 13, 2024. Install growth, rank history, SDKs and ad networks.

From the store listing: “CASIO calculator fx-991es emulator”