# KnockOut HD Pro-Photo Editor — Background Remover&Cut Picture > Photo editor for background removal, object cutout, and image compositing. (iPhone/iPad app by RETOUCH AI PTE.LTD..) - Source: https://appshunter.io/ios/app/knockout-hd-pro-photo-editor/id969839385 (this page in markdown: same URL + `.md`) - Developer: [RETOUCH AI PTE.LTD.](https://appshunter.io/developer/6778639908) - Category: Photo & Video, Business - Price: $1.99 with in-app purchases - Rating: 4.50/5 from 3,186 App Store ratings · 1,016 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 122 MB - Languages: American English, Arabic, German (Germany), Russian, Chinese (Simplified, China), Thai - Released: 2015-02-25 - Data updated: 2026-09-01 - Monetization: subscription - User reviews in markdown: https://appshunter.io/ios/app/knockout-hd-pro-photo-editor/id969839385/reviews.md ## What is KnockOut HD Pro? The easy way to cutout(especially complex hair edge cutout) and composite photos, change background and apply effects to your photos. *MULTIPLE CUTOUT TOOLS -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. *100+ FILTERS & EFFECTS There are over 100 filters and effects to make your photos unique! *23 BLEND MODES *POWERFUL PHOTO EDITOR *TRANSPARENT PNG AND COLORFUL BACKGROUND JPG SUPPORT 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, $3.99 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 http://support.apple.com/kb/ht4098 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:http://www.godimage.mobi/policy Terms of Use: http://www.godimage.mobi/terms ## Key features - Automatic cutout tool - Manual selection tools (lasso, eraser) - Hair and edge refinement tools - Over 100 filters and effects - 23 blend modes - Transparent PNG export ## Pricing and in-app purchases Base price: $1.99. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Knockout Plus -1 Year | $19.99 | per year | | Knockout Plus -1 month | $5.99 | per month | | Knockout Plus -7 days trial | $2.99 | per 7 days | | Knockout Plus -Half Year | $12.99 | per 6 months | ## What do users think of KnockOut HD Pro? Overall sentiment: mixed **Pros** - 👍 Easy to use - 🚀 Powerful features - 💡 Innovative editing tools - 🎨 Great for photo manipulation - ⭐ Excellent results **Cons** - 🐛 Crashes and bugs - 💰 Expensive subscription model - 🤔 Confusing UI/UX - 🔍 Difficult to master - 🔒 Lack of customer support **Commonly reported bugs** - Saving issues cause loss of work - Unexpected app behavior after updates - Compatibility problems on older devices - Blending tool produces poor quality results - Overlays not aligning properly **Most requested features** - Add undo/redo functionality - Improve background removal accuracy - Integrate with cloud storage services - Provide more customization options - Enhance batch processing capabilities ## Recent user reviews (10 of 1,016) All indexed reviews: https://appshunter.io/ios/app/knockout-hd-pro-photo-editor/id969839385/reviews.md ### 1/5 — Used to be *2026-06-28, version 1.6* Used this app a lot years ago, then here recently it has become extremely glitchy. It closes on its own and it’s pretty annoying. Still try to make it work ### 1/5 — Disappointment App *2026-05-12, version 1.6* I’ve used the app for many years but now it’s only gotten worse. The sticker option leaves residue on photo adjustments. Goodbye. ### 1/5 — Not updated *2026-04-15, version 1.6* ซื้อ แต่ล่าสุดเปิดแอพไม่ได้แล้ว ### 4/5 — Actualícenla *2026-01-22, version 1.6* Por favor, muy buena app pero con los IOS más actuales empezó a tener fallas, repárenla, es una app muy buena pero ya tiene muchas fallas ### 2/5 — Long time user *2025-12-27* Purchased the upgrade years ago and was great for the small jobs I would do. Tried to edit a picture (add a quick watermark) and the app wouldn’t launch. It was continually stuck in the splash screen. Tried and wait it out and the app wouldn’t launch crash. Since I have updated my iOS and even phones thought it might be an issue. So I deleted the app along with the data since I had bought the upgrade years ago. Downloaded the app again, and this time it launched but to my surprise? It is now a monthly subscription?! I tried to restore my purchase and it says I hadn’t bought anything. This is when I realized what has happened: lock out the legacy purchasers to make them pay the new monthly subscription model. For these prices, I would rather switch to photoshop express. Too bad, this was a great app for very casual users. I don’t need anything AI (I believe the selling point because of the tokens used). 2 stars because i had been using it and it’s great for SIMPLE edits ### 5/5 — Тамара *2025-12-21* Пользуюсь много лет:) спасибо хорошая ручная вырезка. Вылетело сохранение в прозрачный фон, как исправить? ### 1/5 — Ai cut fake *2025-08-25, version 1.6* Not working. Won’t give money back ### 1/5 — ไม่คุ้ม *2023-03-01, version 1.6* ไม่คุ้มนะ ถ้าเทียบกับ proknockout การตัดภาพไม่คมขอบเส้นไม่ชัดเจน เสียเวลาต้องมาแก้ไข ในขณะที่ proknockout ตัดเส้นได้คมกว่า ราคา 69 ไม่คุ้มเลย ข้ามเรื่อง hd ไปเลย ต้องซื้อเพิ่มอีก! ### 1/5 — Nul *2022-08-18* Je dé conseille. Très mauvaise ergonomie ### 1/5 — NOT HAPPY!!! *2022-04-09, version 1.6* I subscribed to the pro version and then this HD version popped up. I thought, Ok, $1.99 I will try it! WHAT A RIP OFF!! I want my money back! This app is so full of distracting adds and nothing works the way it says it will. Plus I am getting nag screens to upgrade THIS version! What was the $1.99 for? I’ve been using photo editing apps for years. Only reason I had to find a new one is because one that I was very satisfied got discontinued! So disappointed with this app! ## Frequently asked questions about KnockOut HD Pro ### What does KnockOut HD Pro do? This app is designed for easy photo editing, focusing on cutting out subjects from images. It allows you to remove backgrounds, composite photos, and apply various effects and filters to create unique visuals. ### What are the key features of this photo editor? Key features include automatic and manual cutout tools, specialized tools for refining hair and edges, over 100 filters and effects, 23 blend modes, and support for exporting transparent PNGs and colorful JPGs. ### How much does KnockOut HD Pro cost? The app offers a subscription model with options for weekly, monthly, and annual plans. Prices start at $2.99 USD weekly, $3.99 USD monthly, and $19.99 USD annually. A free trial period may be available. ### What kind of photos can I create with this app? You can create a wide range of edited photos, including images with removed backgrounds, subjects composited onto new backgrounds, and photos enhanced with various artistic filters and effects. It's ideal for making stickers or unique graphic elements. ### Is this app compatible with my device? This application is available on iOS devices, as indicated by the mention of iTunes Account Settings for subscription management. Specific compatibility details would typically be found on the app's store page. ## Version history (last 5 releases) ### 1.6 — 2020-04-01 1.Compatible for iOS 13 and darkmode。 2.Optimize the UI。 3.Added a bundle of new features(ID photo, AI Cutout, a lot of templates) Have fun! ### 1.5 — 2018-02-28 *Fix the bug that the stickers may still be locked after purchasing IAP *Minor bugfix & performance improvement ### 1.3 — 2018-02-06 -Fix the bug that there is a grey line around output image. -Newly added the "Batch Matting" feature that is enable to cutout a series of photos quickly. -Newly added the features to revised the saved filename of the output photo. -Newly added the choice of output image's format. -The community is back. -Redesign the home page. -Fix other bugs & performance improvement. ### 1.2 — 2017-12-19 A bundle of new features. -Redesign the whole app and performance improvement. -We've added the professional "Hair Refine" and "Edge Refine" Mask. -Newly added the quick selection to erase unwanted part of an image so easily. -Newly added the "Photo Retouch" features, that enables you to erase unwanted object in an image. -Significantly expanded the features of photo blending. -Newly added a powerful photo editor,you have never seen a photo editor with this many features. -Compatible for iOS11 and iPhone X. ### 1.1 — 2015-08-26 bugfix ## Apps similar to KnockOut HD Pro | App | Rating | Price | Category | | --- | --- | --- | --- | | [Picsart AI Photo Editor, Video](https://appshunter.io/ios/app/picsart-ai-photo-editor-video/id587366035) | 4.7 (1,194,214) | Free | Photo & Video | | [Canva AI Photo & Video Editor](https://appshunter.io/ios/app/canva-ai-photo-and-video-editor/id897446215) | 4.9 (3,507,657) | Free | Photo & Video | | [Lightroom: AI Photo Editor](https://appshunter.io/ios/app/lightroom-ai-photo-editor/id878783582) | 4.8 (336,512) | Free | Photo & Video | | [ProKnockOut-Cut Paste Photos](https://appshunter.io/ios/app/proknockout-cut-paste-photos/id944665061) | 4.6 (73,904) | Free | Photo & Video | | [PicCollage: Magic Photo Editor](https://appshunter.io/ios/app/piccollage-magic-photo-editor/id448639966) | 4.8 (1,832,918) | Free | Photo & Video | | [Photoshop Express Photo Editor](https://appshunter.io/ios/app/photoshop-express-photo-editor/id331975235) | 4.7 (740,747) | Free | Photo & Video | ## More apps by RETOUCH AI PTE.LTD. - [Secret Safe Lock Vault Manager](https://appshunter.io/ios/app/secret-safe-lock-vault-manager/id936358951) - [ProKnockOut-Cut Paste Photos](https://appshunter.io/ios/app/proknockout-cut-paste-photos/id944665061) All apps by RETOUCH AI PTE.LTD.: https://appshunter.io/developer/6778639908 ## Related topics [pro knockout](https://appshunter.io/ios/topics/pro-knockout) · [knock knock pros](https://appshunter.io/ios/topics/knock-knock-pros) · [knockio](https://appshunter.io/ios/topics/knockio) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*