Comparison

Background Eraser vs ProKnockOut

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Background Eraser

Effortlessly remove backgrounds from your photos with AI-powered tools. Maintain transparency, fine-tune edges, and add new backgrounds. Export in high resolution and various formats.

Highlights
  • AI background removal
  • Transparency maintenance
  • Fine pixel-level accuracy
  • Erase/Restore tool
  • Crop with presets
  • Adjust image effects
  • Add new backgrounds
Features
Read full description

This app helps to remove the background of any picture of yours and maintain transparency with just few taps. Just touch where you want to remove. "Target" function removes the area of similar color automatically. The image which one maintaining transparency background can be used with other apps ex) Keynote. Pages, etc. #Cut Out Tools – Cut images (Zoom in to work for fine pixel-level accuracy) ___#Erase/Restore : Erase/Restore the area you touched ___#Target Area Auto remove tool (Area/Color) : Remove similar color area automatically ___#Reverse tool : Reverse removed area #Crop – Crop your photos with 15 different presets feature quickly and easily. #Adjust Effect - 9 ADJUSTMENT tools (Smooth, brightness, contrast, saturation, exposure, highlights, shadows, temperature, vignette) **”Smooth” - Smoothing image edge #Add Background Photo - Remove & Change your photo background #Full Resolution - Selecting size of output picture (HQ 3264 x 3264 pixel , Normal 1600 x 1600 pixel, LQ 800 x 600 pixel) #PNG/ JPEG File Selection - Selecting size of output picture (PNG_transparent background,JPEG_white background) #Share Instagram, Facebook, Twitter, Mail, Other Apps Terms of Use: https://sites.google.com/view/noonus-ltd/terms-condition Privacy Policy: https://sites.google.com/view/noonus-ltd/privacy-policy SUBSCRIPTION INFO: • Subscription for Background Eraser for full access to all features. • Subscription length: 12 months. • Your payment will be charged to your iTunes Account as soon as you confirm your purchase. • You can manage your subscriptions and turn off auto-renewal from your Account Settings after the purchase. • Your subscription will renew automatically, unless you turn off auto-renew at least 24 hours before the end of the current period. • The cost of renewal will be charged to your account in the 24 hours prior to the end of the current period. • When canceling a subscription, your subscription will stay active until the end of the period. Auto-renewal will be disabled, but the current subscription will not be refunded. • Any unused portion of a free trial period, if offered, will be forfeited when purchasing a subscription.

About

ProKnockOut

Effortlessly remove backgrounds from photos with AI-powered tools. Create collages, ID photos, and edit images with multi-layer synthesis and a variety of filters and effects. Easily erase unwanted objects and refine details for professional-looking results.

Highlights
  • One-click cutout
  • Batch cutout
  • Manual selection tools
  • Multi-layer composition
  • ID photo creation
  • Magic Eraser for object removal
  • 100+ filters and effects
Features
Read full description

ProKnockOut is an AI photo editor built for powerful cutouts, background removal, object erasing and creative photo editing. Create clean, professional images in just a few taps. BACKGROUND REMOVER • Remove backgrounds with one tap • Cut out people, products, animals and objects • Refine hair, fur and fine edges • Create transparent PNG images • Replace backgrounds with your own photos PHOTO CUTOUT & COMPOSITION • Make precise photo cutouts • Use Lasso, Eraser and other selection tools • Combine multiple images with layers • Create seamless photo compositions • Adjust and blend images with ease AI PHOTO TOOLS • AI photo editing • AI-powered creative effects • AI image generation • AI Expand for extending image backgrounds • AI product images for professional product scenes • AI restoration and colorization tools MAGIC ERASER • Remove unwanted objects and people • Clean up distractions from your photos • Restore the surrounding background naturally ID PHOTO • Create ID and passport-style photos • Change background colors • Choose from multiple photo sizes • Automatic cutout and photo adjustments CREATIVE PHOTO EDITING • 100+ filters and effects • 23 blend modes • Stickers, text and templates • Photo collages • Custom image sizes • Transparent PNG and JPG export Whether you are creating product images, social media content, ID photos or everyday edits, ProKnockOut gives you the tools to cut, edit, compose and perfect your photos. Privacy Policy: http://www.godimage.mobi/policy Terms of Use: http://www.godimage.mobi/terms

Screenshots

Background Eraser4 screens
ProKnockOut4 screens

Verdict

The call

The clearest difference is monetization model: ProKnockOut at freemium against Background Eraser's subscription. ProKnockOut also leads on device support (4 vs 2) and iOS requirement (13.0 vs 16.0). Background Eraser's advantage is update cadence (every 4 days vs monthly). On price, rating, review sentiment and ratings volume there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Background Eraser sells 2 in-app purchases, starting at $12.99 per year and ProKnockOut sells 11 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Background Eraser against 4.6 for ProKnockOut. Both are backed by a comparable volume of ratings — 134K and 74K respectively. Written reviews are what separate them: 75% of Background Eraser's written reviews are positive against 73% of ProKnockOut's.

UpkeepUpdate frequency

Background Eraser ships an update every 4 days, ProKnockOut monthly. Both last shipped on September 28, 2026.

Scorecard4 real differences · 6 level
Background Eraser versus ProKnockOut: the parameters behind the verdict, then further details
ParameterBackground EraserProKnockOut
PriceFreeFree
Rating4.5 (134K ratings)4.6 (74K ratings) — better
Positive reviews74.9% of reviews — better73.3% of reviews
Number of ratings134K — better74K
Update frequencyEvery 4 days — betterMonthly
AdsYesYes
In-app purchasesYesYes
MonetizationSubscriptionFreemium — better
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS16.013.0 — better
Further details — not scored
Size328 MB221 MB
Age rating4+9+
DeveloperSUNWOONG JANGRETOUCH AI PTE.LTD.

Customer experience

Background Eraser

All ratings134,151 ratings
Positive88.5%
Neutral6.4%
Negative5.1%
Written reviews2,406 reviews
Positive74.9%
Neutral4.8%
Negative20.2%

ProKnockOut

All ratings73,954 ratings
Positive88.6%
Neutral4.5%
Negative7.0%
Written reviews953 reviews
Positive73.3%
Neutral5.0%
Negative21.6%

User reviews

Background Eraser

From 134K App Store ratings

What we love

  • 🚀 Easy to use
  • 👍 Helpful for editing photos
  • 💡 Allows custom backgrounds
  • 🚀 Efficient background removal
  • 👍 Useful for digital scrapbooking

Room to improve

  • 🐛 Crashes when saving edited photos
  • 🔒 Forced to follow social media for full access
  • 🔒 Paid version doesn't remove all ads
  • 🐛 Eraser tool can be inaccurate
  • 🐛 Leaves pixelated edges after background removal

ProKnockOut

From 74K App Store ratings

What we love

  • 🚀 Amazing features
  • 👍 User-friendly
  • 💡 Innovative AI tools
  • 🤩 Excellent photo editing capabilities

Room to improve

  • 🐛 Buggy updates
  • 💸 Expensive subscription
  • 🤔 Confusing UI changes
  • 🔍 Unreliable tool functionality

Bugs and requests

Background Eraser

Reported bugs

4 issues
  • Inability to exit ad screen
  • Losing progress when switching apps
  • Inconsistent background removal quality
  • Paid version not working as expected

Requested features

5 requests
  • Add more background options
  • Improve accuracy of eraser tool
  • Implement undo/redo functionality
  • Allow importing custom backgrounds
  • Add tutorial or guidance for new users

ProKnockOut

Reported bugs

4 issues
  • App crashes on launch
  • Saved drafts disappearing
  • AI tools not working as expected
  • Subscription issues and double charging

Requested features

4 requests
  • Undo button for editing
  • Improved transparency handling
  • More intuitive sticker/layer management
  • Better communication from developers

In-app purchases

2 purchases

Background Eraser

Subscriptions1
  • Pro - Annual3 Days trial$12.991 Year
One-time1
  • Remove AD & remove watermark$9.99
11 purchases

ProKnockOut

Subscriptions7
  • Weekly VIP Membership3 Days trial$4.997 Days
  • Weekly VIP-Flash sale7 Days trial$4.997 Days
  • Monthly VIP Membership$5.991 Month
Show 4 more
  • Monthly VIP-Flash sale1 Month trial$5.991 Month
  • AI Membership-Weekly3 Days trial$9.997 Days
  • Semiannually VIP Membership14 Days trial$16.496 Months
  • Yearly VIP Membership14 Days trial$26.991 Year
One-time4
  • Save HD Image Once$0.99
  • Universal unlock 1 time$0.99
  • Save Pics In High Resolution$3.99
Show 1 more
  • Pro Bundle Pack$4.99

Questions

Is Background Eraser free?
Background Eraser is free to download, with in-app purchases available.
Is ProKnockOut free?
ProKnockOut is free to download, with in-app purchases available.
Which has better reviews, Background Eraser or ProKnockOut?
ProKnockOut is rated higher. Background Eraser averages 4.5 out of 5 from 134K ratings, while ProKnockOut averages 4.6 from 74K ratings.
Do Background Eraser or ProKnockOut have ads?
Both Background Eraser and ProKnockOut show ads.
Which is updated more often, Background Eraser or ProKnockOut?
Background Eraser ships an update every 4 days, and ProKnockOut monthly. Most recently, Background Eraser was updated on September 28, 2026 and ProKnockOut on September 28, 2026.

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