# AudioStretch Lite vs DJ Kartier

The clearest difference is in-app purchases: AudioStretch Lite at none against DJ Kartier's 3. AudioStretch Lite also leads on review sentiment (73% vs 47%) and iOS requirement (12.0 vs 16.0). DJ Kartier's advantage is update cadence (every 3 days vs every 3 months) and rating (4.5 vs 4.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. DJ Kartier sells 3 in-app purchases, starting at $4.99 per month. AudioStretch Lite asks for nothing beyond the download.

DJ Kartier holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 623 and 243 respectively. Written reviews complicate that: 73% of AudioStretch Lite's written reviews are positive against 47% of DJ Kartier's, so the app with the better star average is not the one people write more warmly about.

AudioStretch Lite ships an update every 3 months, DJ Kartier every 3 days. Both last shipped on November 10, 2026.

## The numbers

| Metric | AudioStretch Lite | DJ Kartier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (623 ratings)](https://appshunter.io/ios/app/audiostretch-lite/id647190921/reviews) | **[4.5 (243 ratings)](https://appshunter.io/ios/app/dj-kartier/id6775130723/reviews)** |
| Number of ratings | **623** | 243 |
| Positive reviews | **72.9% of reviews** | 47.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | **Free** | Freemium |
| Best chart rank | — | **#61** |
| Size | 18 MB | 172 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Cognosonic Pte Ltd](https://appshunter.io/developer/571863181) | [Producer Supply LLC](https://appshunter.io/developer/6775130905) |

## What reviewers say

### AudioStretch Lite

[App page](https://appshunter.io/ios/app/audiostretch-lite/id647190921)

This app allows musicians to slow down, loop, and transpose music from audio or video files. It also enables capturing video directly with your phone's camera for transcription. Ideal for learning songs by ear or experimenting with sound.

**Highlights:** Slow down audio/video without pitch change, Loop difficult sections, Transpose music notes, Import audio/video files, Capture video with phone camera, Live waveform scrubbing

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Great for making memes and YTPs
- 👍 User-friendly interface
- 🎨 Useful for music production and learning
- 🎉 Funny and entertaining to use

**What reviewers complain about**

- 🐛 Audio/video issues (crashes, no sound, etc.)
- 💰 Paid features should be free
- 🔍 Difficulty importing files or accessing library

**Reported bugs**

- Audio stops working after a while
- Video disappears when trying to screen record
- Crashes when trying to export or share content

**Requested features**

- Add more editing tools and effects
- Improve loop management and save options
- Implement night mode and other visual customizations


### DJ Kartier

[App page](https://appshunter.io/ios/app/dj-kartier/id6775130723)

**Currently charting:** #61 Top Free · Music (US App Store)

Explore over 1,000 iconic sounds and create music with a full-screen piano or a connected MIDI keyboard. Learn piano with interactive lessons, collaborate with friends in crews, and share your creations with the world.

**Highlights:** 1,000+ iconic sounds, Full-screen piano, Kartier Studio for song creation, Interactive piano lessons, Social Crews for collaboration, MIDI keyboard connectivity, Customizable RGB key lighting

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DJ Kartier Premium | $4.99 | per month |
| DJ Kartier Premium (Annual) | $29.99 | per year |
| DJ Kartier Premium (Lifetime) | $79.99 | one-time |


## Frequently asked questions

### Is AudioStretch Lite free?

AudioStretch Lite is free to download, with no in-app purchases.

### Is DJ Kartier free?

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

### Which has better reviews, AudioStretch Lite or DJ Kartier?

DJ Kartier is rated higher. AudioStretch Lite averages 4.0 out of 5 from 623 ratings, while DJ Kartier averages 4.5 from 243 ratings.

### Do AudioStretch Lite or DJ Kartier have ads?

Neither AudioStretch Lite nor DJ Kartier shows ads.

### Which is updated more often, AudioStretch Lite or DJ Kartier?

AudioStretch Lite ships an update every 3 months, and DJ Kartier every 3 days. Most recently, AudioStretch Lite was updated on November 10, 2026 and DJ Kartier on November 10, 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.*