The easy way to cutout(especially complex hair edge cutout) and composite photos, change background and apply effects to your photos.

-The automatic cutout tool: You just need to circle the object that you want to cut out, make a sticker out of any photo easily!
-Manually selection tools: Lasso, instant alpha, eraser, a lot of manual tools to cutout if you are not satisfied with the result of the automatic cutout tool.
-The new "Hair Refine" and "Edge Refine" tools, offering you a first glimpse of how much easier it could be to select hair, fur and other fine details in an image.

There are over 100 filters and effects to make your photos unique!




Knockout Plus subscription
- You can subscribe for new weekly updates (every week, new images will be available for download)
- Subscriptions are from $2.99 USD weekly, $5.99 USD monthly and $19.99 USD annually*
- Payment will be charged to iTunes Account at confirmation of purchase
- You will be able to color all available images for the duration of the subscription
- Subscription automatically renews for the same price and duration period as the original "one week"/"one month"/"one year" package unless auto-renew is turned off at least 24-hours before the end of the current period
- Account will be charged for renewal within 24-hours prior to the end of the current period at the cost of the chosen package (weekly, monthly or yearly package)
- Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's iTunes Account Settings after purchase
- No cancellation of the current subscription is allowed during active subscription period
- You may cancel a subscription during its free trial period via the subscription setting through your iTunes account. This must be done 24 hours before the end of the subscription period to avoid being charged. Please visit for more information
- You may turn off the auto-renewal of your subscription via your iTunes Account Settings. However, you are not able to cancel the current subscription during its active period
- Any unused portion of a free-trial period, will be forfeited when the user purchases a Knockout Plus subscription

Links to our Terms of Service and Privacy Policy can be found below
Privacy Policy:
Terms of Use:

What's New

Version 2.8

*Fix the bug that app may crash when turn on the "Quick Output" switch in "BatchMatting" mode
*Fix the bug that the stickers may still be locked after purchasing IAP
*Minor bugfix & performance improvement

Ratings and Reviews

4.4 out of 5

936 Ratings

936 Ratings

quickly edit their captured photos

Julian Wardle

With Knockout, users can quickly edit their captured photos, such as cropping, resizing images, inserting backgrounds and stickers, and much more. This is worth the top most valuable photo editing app today.

few simple steps


In just a few simple steps, circle the object I want to cut and paste into whatever background I want, thanks to the features of this app, I have a lively photo to upload to Facebook.


Cutie aw

Great app it took about a week to figure out how to use it but its an amazing app parents let your kids buy it nothing is inappropriate and thanks ProKnockout


Best Cool Video Image Editing Co., Limited
56.1 MB
Photo & Video
Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.
English, German, Simplified Chinese
Age Rating
Rated 4+
© Loveyouchenapps LLC
In-App Purchases
  1. Knockout Plus-7 days trial $4.49
  2. Pro Bundle Pack $4.49
  3. Save Pics In High Resolution $2.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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