# ProKnockOut vs Instant Lines

The clearest difference is price: ProKnockOut at Free against Instant Lines's $0.99. ProKnockOut also leads on ratings volume (74K vs 25) and review sentiment (73% vs 62%). Instant Lines's advantage is in-app purchases (none vs 12) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

ProKnockOut is free to download; Instant Lines costs $0.99 up front. ProKnockOut sells 11 in-app purchases, starting at $4.99 per 7 days. Instant Lines asks for nothing beyond the download.

Instant Lines holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: ProKnockOut has 74K ratings behind it against 25, so its average is the more settled of the two. Written reviews complicate that: 73% of ProKnockOut's written reviews are positive against 62% of Instant Lines's, so the app with the better star average is not the one people write more warmly about.

ProKnockOut ships an update monthly, Instant Lines weekly. Both last shipped on October 27, 2026.

## The numbers

| Metric | ProKnockOut | Instant Lines |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.6 (74K ratings)](https://appshunter.io/ios/app/proknockout-cut-paste-photos/id944665061/reviews) | **[4.9 (25 ratings)](https://appshunter.io/ios/app/instant-lines/id1633366918/reviews)** |
| Number of ratings | **74K** | 25 |
| Positive reviews | **73.3% of reviews** | 62.2% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Weekly** |
| Monetization | **Freemium** | Paid |
| Size | 218 MB | 12 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [RETOUCH AI PTE. LTD.](https://appshunter.io/developer/6778639908) | [祥 汤](https://appshunter.io/developer/1623075074) |

## What reviewers say

### ProKnockOut

[App page](https://appshunter.io/ios/app/proknockout-cut-paste-photos/id944665061)

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:** iMessage stickers, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly VIP Membership | $4.99 | per 7 days |
| Weekly VIP-Flash sale | $4.99 | per 7 days |
| Monthly VIP Membership | $5.99 | per month |
| Monthly VIP-Flash sale | $5.99 | per month |
| AI Membership-Weekly | $9.99 | per 7 days |
| Semiannually VIP Membership | $16.49 | per 6 months |
| Yearly VIP Membership | $26.99 | per year |
| Save HD Image Once | $0.99 | one-time |
| Universal unlock 1 time | $0.99 | one-time |
| Save Pics In High Resolution | $3.99 | one-time |
| Pro Bundle Pack | $4.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

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


### Instant Lines

[App page](https://appshunter.io/ios/app/instant-lines/id1633366918)

Transform photos into line art with a single click. Enhance blurry images with AI, adjust line thickness, and export your creations for further editing or practice. Offers batch processing for efficiency.

**Highlights:** One-click image to line art conversion, AI-enhanced clarity for blurry images, Batch image processing, Adjustable line art thickness, Transparent background option, Compare with original image, Export to drawing software

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ProKnockOut free?

ProKnockOut is free to download, with in-app purchases available.

### Is Instant Lines free?

Instant Lines costs $0.99, with no in-app purchases.

### Which has better reviews, ProKnockOut or Instant Lines?

Instant Lines is rated higher. ProKnockOut averages 4.6 out of 5 from 74K ratings, while Instant Lines averages 4.9 from 25 ratings.

### Do ProKnockOut or Instant Lines have ads?

ProKnockOut shows ads; Instant Lines does not.

### Which is updated more often, ProKnockOut or Instant Lines?

ProKnockOut ships an update monthly, and Instant Lines weekly. Most recently, ProKnockOut was updated on October 27, 2026 and Instant Lines on October 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*