Pro KnockOut-Background Eraser

deepaso ranking

Rank Class iPhone iPad
Download 3247 4331
Income 4135 12690

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Chart Class iPhone iPad
Free·Photo & Video 218 150
Grossing·Photo & Video 299 480


  • Pro KnockOut
  • Pro KnockOut
  • Pro KnockOut
  • Pro KnockOut
  • Pro KnockOut
  • Pro KnockOut
  • Pro KnockOut
  • Pro KnockOut
  • Pro KnockOut
  • Pro KnockOut


Developer Chi zhang
BundleID com.loveyouchenapps.knockout
Version 3.97
Size 93.8MB
Released December 4,2014
Updated October 20,2019
Score 4.5
Review Num 58390
Language Arabic ,English ,Russian ,Chinese ,Thai
Rating 4+
Compatibility 8.0

Comment information

  • Midoriko78 - 2019-11-10 09:52:30

    The problem is...

    I’ve been using this app for... a while now. And, ironically, until now, I had no issues. My problem is that when I erase backgrounds, some with have white surrounding it, and some won’t. I can’t do anything with this app if it continues this. It picks and chooses whether it wants to fully erase the background. I’ve tried EVERY option, but this... glitch... seems to stay. I understand if y’all are working on the app, and will be very patient, but this glitch is disturbing my work.

  • SeriousTaco69 - 2019-11-14 03:58:11

    Issues with text outline color.

    Hello. I have used this app for years now and recently the outline color hasn’t been working correctly the last couple of weeks. I was sure the company would find some errors with it but it appears nobody has complained about it yet? Sorry to be that but I use this app for a business and need that outline color on text to be fixed as soon as possible 😄 please let me know if it is possible to be fix. Thanks.

  • Bendallbug - 2019-11-10 12:04:20


    I tend to want to remove the backgrounds of many picture and put them into a new picture. Most of the time ProKnockout does a PERFECT job of it. Because of my hobbies i tend to use this app daily and it rarely fails to help. There are times where it may crash but it doesn't happen often, and because it's helped out so much I don't mind those very few times. ProKnockout is a great app!

Promotional Text



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)
- 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

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