About this app
Opticra is the essential toolkit for photographers who want precise calculations in the field. Whether you're setting up a long exposure on a tripod, comparing focal lengths across sensor sizes, dialing in your flash power, planning a print order, or shooting stars at night — Opticra has the calculator you need.
Latest release
What’s New
UI Enhancements: Improved the navigation bar aesthetics and transition animations for a smoother user experience. System Compatibility: Optimized for the latest iOS version to ensure stability and seamless performance.
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 · 10:56 PM Free