Focal Length Estimator icon

Focal Length Estimator

Multi Purpose Calculators

⬇ 500+ downloads

Est. actual: 565

Free

Released: Aug 11, 2025

IAP: $0.99 - $199.99 per item

Contains ads

Signals

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

📈Last 7 days +25 installs · 2/day since Oct 7
🏆Among Productivity apps top 22% by installs gained this week (614 peers growing)
🛠Updates dormant · updated 456 days ago

Installs since launch

+25 installs since Oct 7

Update history

1.0422 Aug 11, 2025 · seen Oct 23, 2026

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

Focal Length Estimator is a productivity app by Multi Purpose Calculators with 500+ downloads (about 565 estimated). +25 installs in the last 7 days. Released Aug 11, 2025. Install growth, rank history, SDKs and ad networks.

From the store listing: “Instant focal length calculator for mirrors, lenses & refractive optics!”