Corr is a powerful and professional photo editor for iOS, that you can take great photos without lens distortion.

Here's what you get:

• Guides — Quickly correct lens distortion by drawing 4 guides in the image
• Bulge/Pinch — Adjust image shrinkage and expansion to eliminate fish-eye effects
• Tilt — Tilt adjustment in both horizontal and vertical directions
• Free Trans — Adjust image distortion by dragging 4 corners in the image
• Stretch — Stretch adjustment in both horizontal and vertical directions
• Rotation — Rotate your image at any angle

== CROP ==
• Crop — Crop to standard sizes or freely
• Filp — Mirror in both horizontal or vertical directions

== COLOR ==
• Brightness / Exposure / Saturation / Hue / Contrast / Warmth and more

Thank you for using Corr !
If you're having trouble with Corr or have a great idea, please let us know by the Feedback in app.

== Auto Renewable Subscription Terms ==
* Choose from 2 subscription options:
- a monthly subscription for $0.99 USD;
- an annual subscription for $4.99 USD.
The price corresponds to the same price segment, which are set in the "Apple's App Store Matrix" for other currencies.
* Your free trial subscription will automatically renew to a paid subscription unless auto-renew is turned off at least 24 hours before the end of the free trial period. 
* Please note: any unused portion of a free trial period (if offered) will be forfeited when you purchase a premium subscription during the free trial period.
* You can cancel a free trial or subscription anytime by turning off auto-renewal through your iTunes account settings. This must be done 24 hours before the end of a free trial or subscription period to avoid being charged. The cancellation will take effect the day after the last day of the current subscription period, and you will be downgraded to the free service.
* Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal

Terms of Service:

Privacy Policy:

What’s New

Version 1.5.0

【What’s New】
· Adapted to iOS14
· Solved some UI issues

Thank you for the use of Corr App .
We have received feedbacks from all of you, and we will upgrade and iterate later. If you encounter problems or have great ideas in using app, please let us know through the feedback function in app.

Ratings and Reviews

5.0 out of 5
103 Ratings

103 Ratings

yu vanequt v ,

‌  Simple and easy to use. Really good       ‍ ‌ 

​    It’s really easy to use, I can’t stop it, but can I set a sound ban because I want to listen to the song and use the praise at the same time Oh, the software is beautiful, the music is also nice, and it can’t be put down.      ​       

TextCodeMan ,

Utterly amazing

This app is SO easy to use and so amazingly helpful. Often there are basic needs that Apple ignores/forgets. (“You vill do it OUR vay.”)

Not only does Corr fill those needs, but does it the best. AND has more features than Apple would have done.

Thanks for an amazing problem solver!

For extra credit; maybe a name better than “Corr” would get more hits.

PS: Thank you SO much for publishing an actual change log, not like lazy developers who write “we fixed stuff” and leave us guessing what’s new. Thank you, thank you!!! 😉👍🏻


 Used all the time, used to being too lazy to change something else ‌   ​

    Artifacts such as software smoothness must be in hand, you can chopp your hands, haha, many coupons, it is very cost-effective to convert it down      


Corr PS - 1 month
export watermarkless high-definition works
$0.49 Trial
Corr Ps - 1 year
export watermarkless high-definition works

In-App Purchases

Corr Remove watermark
export watermarkless high-definition works

App Privacy

The developer, Yiyan Tian, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

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

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