Aspect Ratio Pro

Rule of Three Calculator

€3.99

Also Included In

Your new rule-of-three sidekick. Enter three values, and the app instantly finds the fourth. Perfect for calculating ratios and proportions when one value is missing. ⁂ Support If you need help or want to make a feature suggestion, I’d love hearing from you → https://appahead.studio/help/ Feedback Enjoying Aspect Ratio Pro? I’d love your support with a kind review on the App Store. About I’m Martin — designer, developer, and founder of App ahead. Since 2015, I’ve been creating ambitious apps for Apple devices, driven by a strong vision and thoughtful, forward-thinking design. Terms of Use: https://appahead.studio/terms Privacy Policy: https://appahead.studio/privacy

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This update fixes a bug where entering special characters caused a crash for some users.

Version 3.8

The developer, App ahead GmbH, 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 based, for example, on the features you use or your age. Learn More

    The developer indicated that this app supports the following accessibility features. Learn More

    • Supported Features

      • VoiceOver

      • Dark Interface

      • Differentiate Without Colour Alone

      • Sufficient Contrast

      • Reduced Motion

    For more information, visit the developer’s accessibility website .

    Information

    Size
    • 34.6 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 18.6 or later.
    • iPhone
      Requires iOS 18.6 or later.
    • Mac
      Requires macOS 15.6 or later.
    Languages
    English and 9 more
    • English, French, German, Hindi, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish
    Age Rating
    4+
    Provider
    App ahead GmbH
    • App ahead GmbH has identified itself as a trader for this app and confirmed that this product or service complies with European Union law.
    • DUNS Number
      313542241
    • Address
      Peterstr. 44-46
      52062 Aachen
      Germany
    • Phone Number
      +49 15787000789
    • Email
      appstore@appahead.studio
    Copyright
    • © 2016–2026 App ahead GmbH
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

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

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