Telescope calculator

Name: Telescope calculator
Rating: 4.0140843 (1285 reviews)
Author: א.מ.

א.מ.

★ 4.0 (1,285 ratings)

⬇ 100,000+ downloads

Est. actual: 498,452

Free

Released: Apr 18, 2018

No in-app purchases

Contains ads

Signals

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

📈Last 7 days +93 installs — 34% slower than the week before (+141) · 13/day since Oct 7
🏆Among Tools apps top 15% by installs gained this week (1137 peers growing)
⭐Rating steady at ★ 4.01 since Oct 7
🛠Updates dormant · updated 439 days ago

Installs since launch

+390 installs · -1 ratings since Oct 7

Update history

4.2.0 Aug 30, 2025 · seen Oct 17, 2026

v4.1.0 image resolution increased + NGC884, NGC1514, NGC5128, NGC6888, NGC7009, NGC7129, NGC7318, NGC7380, NGC7635 v4.0.0 account for storing settings v3.6.0 increased slider input v3.5.1 + NGC891, NGC4565, NGC4631, NGC6960, NGC6979, NGC7662 v3.5.0 - changed settings, choice of object and language - full-screen advertising is twice as rare + M97,

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

Telescope calculator is a tools app by א.מ. with 100,000+ downloads (about 498K estimated). +93 installs in the last 7 days. Rated 4.0 from 1.3K ratings. Released Apr 18, 2018. Install growth, rank history, SDKs and ad networks.

From the store listing: “Calculation of parameters and characteristics of telescopes with visualization”