StopStack

ND filter field planner

Only for iPhone

$2.99 · Designed for iPhone. Not verified for macOS.

iPhone

StopStack helps long exposure photographers calculate neutral density filter exposures in the field. Save the ND filters you actually carry, enter your base exposure, and quickly see the shutter time you will get from one filter or a stacked combination. Working toward a specific creative effect? Enter your target shutter time and StopStack recommends the closest stack from your kit, with practical alternatives when the exact result is not possible. Built for waterfalls, seascapes, cloud streaks, crowd removal, architecture, travel, and quick video shutter checks. Features: - ND exposure calculator for single and stacked filters - Target shutter planner using your saved filter kit - Support for stops, ND factor notation, and optical density notation - Common scenario shortcuts for long exposure work - Long exposure countdown timer - Recent calculations stored locally - English, Simplified Chinese, and Japanese in-app language options - Local-first design with no account and no tracking StopStack is a focused field tool. It does not require internet access, cloud sync, or an account.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

Improved long-exposure timer behavior, reset feedback, compact scenario layout, and recent-save labels for a clearer field workflow.

Version 1.0.1

The developer, MIANJUN LIU, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • MIANJUN LIU
    Size
    • 832.5 KB
    Category
    • Photo & Video
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 MIANJUN LIU
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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