iPhone Screenshots


Clothing size forecasts for kids from 0 to 16.
You measure your kids' height once and then »What fits when?« tells you which sizes fit right now – and when the next ones will fit. You love to travel? Switch to EU, UK, US or Japanese sizes with a single tap.

It's that easy:
• Add child
• Enter birthday
• Measure and record body height

Even when the last measurement dates a good while back »What fits when?« estimates the growth rate* of your child and tells you, by when the next clothing sizes** will fit.

*) Growth rate calculation is based on the WHO Child Growth Standards. They contain statistical data for the whole human population. However all children are different and grow at their individual pace. Therefore accuracy of estimates may be limited.

**) Each clothing brand uses their own patterns and size charts. Therefore the sizes recommended by the app may differ from the best fitting size of actual pieces.

Made with cool icons by https://icons8.com

What’s New

Version 1.2.3

• Compatibility with iOS 12 and new iPhones
• Minor fixes and improvements

Ratings and Reviews

4.0 out of 5
1 Rating

1 Rating

Princess Crocodile ,

Nice and simple but....

I really think it needs more options, shoe sizes for example, for me that is the most challenging measurement to keep track. It really needs to have space for this information specially after paying for this app. Also a note section is vital, so that way we can keep track of brand sizes that run bigger or sometimes the shirt may be needed in a smaller size or viceversa. Another important point would be to be able to input your modifications on sizes.


Tim Gleue
16.9 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, German, Spanish

Age Rating
Rated 4+
© 2017 Tim Gleue


  • Family Sharing

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

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