# Back Loop vs KLIN

The clearest difference is price: KLIN at Free against Back Loop's $1.99. KLIN also leads on rating (4.7 vs 1.0) and ratings volume (532 vs 1). Back Loop's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 15.0). On ads and device support there is nothing between them.

KLIN is free to download; Back Loop costs $1.99 up front. KLIN sells 1 in-app purchase, starting at $3.49 per month. Back Loop asks for nothing beyond the download.

KLIN holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: KLIN has 532 ratings behind it against 1, so its average is the more settled of the two.

Back Loop ships an update every 31 months, KLIN every 8 months. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Back Loop | KLIN |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/back-loop/id1314652228/reviews) | **[4.7 (532 ratings)](https://appshunter.io/ios/app/klin-ai-video-sound-cleaner/id1635526470/reviews)** |
| Number of ratings | 1 | **532** |
| Positive reviews | — | 37.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 8 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 58 MB | 56 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Sebastien BUET](https://appshunter.io/developer/321941181) | [Beat Squad LLC](https://appshunter.io/developer/1619336436) |

## What reviewers say

### Back Loop

[App page](https://appshunter.io/ios/app/back-loop/id1314652228)

Easily create boomerang-style video loops with adjustable speeds and precise loop selection. You can also reverse entire videos for unique effects. Save and share your creations directly from your device.

**Highlights:** Create boomerang video loops, Adjust loop speed, Reverse entire videos, Accurate loop selection, Automatic pitch adjustment, Save and share videos

**Features:** macOS Compatibility

**In-app purchases:** none


### KLIN

[App page](https://appshunter.io/ios/app/klin-ai-video-sound-cleaner/id1635526470)

Effortlessly remove unwanted noise like wind and background distractions from your videos. This app allows you to boost quiet clips, polish audio with professional tools, and export clean, loud sound quickly. It's ideal for enhancing content for social media platforms.

**Highlights:** Remove wind and background noise, Boost video volume, Mute video audio, Equalizers and audio filters, Bass boost, reverb, echo, Pitch adjustment, Compressor and limiter

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Video Sound Editor Premium | $3.49 | per month |

**What reviewers like**

- 👍 Easy to use and intuitive
- ✨ Good for audio enhancement
- 💖 Restores audio effectively
- 🚀 Works wonders for audio
- ✅ Free period is genuinely free

**What reviewers complain about**

- 💸 Subscription issues and scams
- 🐛 App crashes and bugs
- ⏳ Loading and saving issues
- ❌ Poor customer service
- 📉 Video quality degradation

**Reported bugs**

- Cannot save videos
- App crashes when saving videos
- Video slows down after editing
- Videos only play normally for a short duration then slow down
- App asks to subscribe again after paying

**Requested features**

- Fix inability to save videos
- Improve customer support response time
- Allow enhancement of audio recordings, not just videos
- Fix issue where video details no longer show iPhone model
- Address the watermark issue on exported videos


## Frequently asked questions

### Is Back Loop free?

Back Loop costs $1.99, with no in-app purchases.

### Is KLIN free?

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

### Which has better reviews, Back Loop or KLIN?

KLIN is rated higher. Back Loop averages 1.0 out of 5 from 1 ratings, while KLIN averages 4.7 from 532 ratings.

### Do Back Loop or KLIN have ads?

Neither Back Loop nor KLIN shows ads.

### Which is updated more often, Back Loop or KLIN?

Back Loop ships an update every 31 months, and KLIN every 8 months. Most recently, Back Loop was updated on November 4, 2026 and KLIN on November 3, 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.*