Checkman 4+

The Mobile App Design Checker

Onerity Company Limited

Designed for iPad

    • $0.99



You are a mobile app designer, product owner or developer who wants to check the accuracy of your UI app design? Checkman is the best partner for you.

Top #2 featured app on ProductHunt.
"Great app already bought and playing around with it" - Leon Calcutt.
"Woah, great app! I would most certainly buy immediately being a UI Designer. Keep the good work coming. Cheers!" - Braxton Huff

Checkman is the unique application that helps you test the UI design of any mobile/tablet applications. Screenshot any iPhone/iPad's app and open Checkman to check the photo.

Let us show you how Checkman makes magic:
- Zoom in the screen, and you will see all details of elements in a larger view.
- Check if elements are aligned well together. Drag a ruler to the sides to figure out whether elements are aligned properly.
- Measure paddings and margins to compare with design mockups.
- Measure distances of elements in different units (Px and Pt)
- Measure dimensions of elements (width and height)
- Never miss any color. Just touch and hold your finger anywhere on the screen and witness the magic.
- Show iOS grid to follow Apple's guidelines absolutely

Privacy policy:

To help you have the best experience with Checkman, let us hear your voice by dropping an email to We'll get back to you right away!

Now DOWNLOAD and support us by rating 5 STARS! Thanks a lot.

What’s New

Version 1.4

Fix bugs and improve performance.

App Privacy

The developer, Onerity Company Limited, 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

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

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