ND Calculator icon

ND Calculator

io:io

★ 3.8 (141 ratings)

⬇ 10,000+ downloads

Est. actual: 44,544

Free

Released: Feb 5, 2016

No in-app purchases

Contains ads

Signals

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

📈Last 7 days +34 installs — 49% slower than the week before (+67) · 6/day since Oct 7
🏆Among Photography apps top 22% by installs gained this week (80 peers growing)
⭐Rating steady at ★ 3.82 since Oct 7
🛠Updates quiet · updated 63 days ago

Installs since launch

+243 installs · 0 ratings since Oct 7

Update history

2026.09.13 Sep 13, 2026 · seen Oct 25, 2026

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

ND Calculator is a photography app by io:io with 10,000+ downloads (about 45K estimated). +34 installs in the last 7 days. Rated 3.8 from 141 ratings. Released Feb 5, 2016. Install growth, rank history, SDKs and ad networks.

From the store listing: “Calculate shutter speed for any ND filter. Long exposure timer built in.”