Terms of Use
StopStack is provided as a field planning utility for neutral density filter calculations and exposure timing.
Subscription
The monthly support subscription is optional and renews automatically until cancelled. You can manage or cancel it in your App Store account settings. Core exposure planning, saved filters, and timers remain available without a subscription.
Sponsored offers
The app may show optional sponsored offers after you tap the sponsored-offer button. Advertising availability can vary by region, consent status, and network conditions.
Photography calculations
Exposure results are estimates based on the values you enter. Always review your camera meter, scene conditions, and creative intent before relying on a calculated shutter time.
Contact
For support, email iamxmm20@gmail.com.