How accurate are your eyes?
Perfect Size is a simple game all about matching the perfect size.
Every stages is filled with a new shape and it's up to the player to get a perfect score.

Key Features
- More than 300 stages available
- Easy, Normal, Hard Levels
- Many shapes that are tougher than it looks
- Beware, it's more Addictive than it looks

For Players
- Who have a good visual memory
- Who love playing the simplest games
- Who like brain training games
- Who are looking for easiest games
- Who like to 'perfect' a stage
- Who are looking for a fun game to play with kids

Producer: Sangpil Moon
Graphic Design: Yewon Lee
Client Programmer: Byungtaek Woo

What’s New

Version 1.0.4

A bug that resizes when clicking the "Check" button has been fixed.

Ratings and Reviews

3.8 out of 5
16 Ratings

16 Ratings

Batman2287 ,


I’m giving this app 4 stars for the concept. However, here are my problems.........

1- It is glitchy because sometimes you size it close and you get 0%. That is weird.
2- I got this app on App Advice for free when it is usually $1.99. There is an advertisement every single time you try again. So here is my you have the ads when you pay $1.99 also? If not, why would it be put up for free for a limited time with ads? Not much of a bargain. I thought maybe in the settings I could go pro for free. Nope! I’m stuck with the ads. I won’t keep playing that way.

Other than that, it seems like a fun game to challenge me.

bha520 ,

Doesn’t work

Save your time. I thought I’d try this app during a free promotion. After 5 minutes I deleted it. The idea is to match the size of the object that flashes on your screen, which worked the first round. The second round I tried about 10 times, getting within 95% or better each time (dotted lines appear to show you how you did) but each time I was below 70% sometimes 0. I could not get past the second level because of this app error. Plus, as someone already mentioned, the free version still has ads.

Rappscalion ,

Constant Errors

Had trouble at first with my guess being erased or changed at the last second before scoring me. Finally figured it only happens if I use 2 fingers. Fun game, but frustrating glitch.

Developer Response ,

Hello, thanks for reaching out to us. We are trying to reproduce the issue bit doesn’t happen on our devices. Does this happen in a specific stage or mode?


Cogoo Inc.
136.3 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

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

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