About this app
Long Exposure Calculator is a utility that helps you determine the correct exposure time/shutter speed when using Neutral Density filters. Features: - Very simple to use - Includes a countdown timer if the exposure time is 10 seconds or longer. - Supports up to 24-stops of ND filter iPhone, iPad, and iPod touch compatible.
Latest release
What’s New
Thanks for using the Long Exposure Calculator app! Here's what's new in this update: - Bug fixes and improvements.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 20, 2026 · 10:46 PM Free
Screenshots
