A nifty develop tool for the regular expression, for both macOS and iOS. Your data are synced through your devices with CloudKit. There's also a cheat sheet that helps you to get a better understanding of metacharacters and operators of the regular expression.

What’s New

Version 0.6.4

Fixed shaking of the edit view.

App Privacy

The developer, Shenggang Tang, 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


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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