# Slow Down Music | Transcribe+ vs Quartet 4

The clearest difference is price: Slow Down Music | Transcribe+ at Free against Quartet 4's $16.99. Slow Down Music | Transcribe+ also leads on ratings volume (5.4K vs 24) and update cadence (every 8 days vs monthly). Quartet 4's advantage is review sentiment (89% vs 64%) and rating (4.8 vs 4.5). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Slow Down Music | Transcribe+ is free to download; Quartet 4 costs $16.99 up front. Slow Down Music | Transcribe+ sells 4 in-app purchases, starting at $9.99 per month and Quartet 4 sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Quartet 4 holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Slow Down Music | Transcribe+ has 5.4K ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 64% of Slow Down Music | Transcribe+'s written reviews are positive against 89% of Quartet 4's.

Slow Down Music | Transcribe+ ships an update every 8 days, Quartet 4 monthly. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Slow Down Music | Transcribe+ | Quartet 4 |
| --- | --- | --- |
| Price | **Free** | $16.99 |
| Rating | [4.5 (5.4K ratings)](https://appshunter.io/ios/app/slow-down-music-transcribe-plus/id1048119179/reviews) | **[4.8 (24 ratings)](https://appshunter.io/ios/app/quartet-4/id6740534761/reviews)** |
| Number of ratings | **5.4K** | 24 |
| Positive reviews | 64.0% of reviews | **89.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Monthly |
| Monetization | **Freemium** | Paid |
| Size | 357 MB | 528 MB |
| Requires iOS | 17.6 | **16.6** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dynamic App Design LLC](https://appshunter.io/developer/434136236) | [UK Music Apps Ltd](https://appshunter.io/developer/579320222) |

## What reviewers say

### Slow Down Music | Transcribe+

[App page](https://appshunter.io/ios/app/slow-down-music-transcribe-plus/id1048119179)

This app allows musicians to slow down and change the pitch of songs to aid in transcription and practice. It uses AI to separate instruments, offers customizable looping, and supports various chord chart formats.

**Highlights:** AI instrument separation (vocals, drums, bass, guitar, piano), Adjustable tempo and pitch, Customizable looping and practice sections, Import and sync chord charts, Interactive waveform scrubbing, Video loading for visual aid, 10-band EQ and channel mixer

**Features:** Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Transcribe+ Premium Monthly | $9.99 | per month |
| Transcribe+ Premium Yearly | $39.99 | per year |
| Unlock Everything | $79.99 | one-time |
| Unlock Everything | $99.99 | one-time |

**What reviewers like**

- 🚀 Outstanding audio quality
- 🚀 Excellent slow-down and pitch-change capabilities
- 🚀 Useful loop and flag features
- 👍 Great for learning difficult parts
- 👍 Helpful for transcribing and practicing

**What reviewers complain about**

- 🐛 Inconsistent performance with DRM-protected tracks
- 🔒 Premium features locked behind paywall
- 🐛 Distorted audio when slowed down or sped up
- 🐛 Crashes and bugs after recent updates

**Reported bugs**

- Playback issues with DRM-protected tracks
- Crashes when trying to export loops
- Inconsistent behavior when scrolling and scrubbing
- Inability to delete individual songs from recent list

**Requested features**

- Ability to save and manage custom loops and flags
- Metronome or beat detection feature
- Deeper integration with streaming services like Spotify
- More precise control over pitch and speed adjustments
- Improved audio isolation and separation of instruments


### Quartet 4

[App page](https://appshunter.io/ios/app/quartet-4/id6740534761)

Practice and perform jazz standards with high-quality backing tracks. Mute your instrument, change keys, adjust tempo, and loop sections for focused practice. Features animated chord diagrams and royalty-free multitrack exports for further creative use.

**Highlights:** Live jazz backing tracks, Mute your instrument, Change key and tempo, Looping for practice, Animated chord diagrams, Multitrack export, Playlist creation

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade song | $0.99 | one-time |
| Buy 10 tokens | $8.99 | one-time |
| Buy 20 tokens | $14.99 | one-time |
| Buy 50 tokens | $22.99 | one-time |
| Upgrade all songs | $39.99 | one-time |

**What reviewers like**

- 👍 Superb interface
- 🎨 Accurately labels tracks by style
- 🎶 Live instrument recordings
- 🔀 Ability to separate and send tracks
- 🎨 High-quality presentation and performance

**Requested features**

- More guitar in rhythm section for future volumes


## Frequently asked questions

### Is Slow Down Music | Transcribe+ free?

Slow Down Music | Transcribe+ is free to download, with in-app purchases available.

### Is Quartet 4 free?

Quartet 4 costs $16.99, and also offers in-app purchases.

### Which has better reviews, Slow Down Music | Transcribe+ or Quartet 4?

Quartet 4 is rated higher. Slow Down Music | Transcribe+ averages 4.5 out of 5 from 5.4K ratings, while Quartet 4 averages 4.8 from 24 ratings.

### Do Slow Down Music | Transcribe+ or Quartet 4 have ads?

Neither Slow Down Music | Transcribe+ nor Quartet 4 shows ads.

### Which is updated more often, Slow Down Music | Transcribe+ or Quartet 4?

Slow Down Music | Transcribe+ ships an update every 8 days, and Quartet 4 monthly. Most recently, Slow Down Music | Transcribe+ was updated on November 6, 2026 and Quartet 4 on November 5, 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.*