# Quartet 4 vs Walking Bass Trainer

The clearest difference is price: Walking Bass Trainer at $2.99 against Quartet 4's $16.99. Walking Bass Trainer also leads on in-app purchases (none vs 5) and update cadence (every 3 days vs monthly). Quartet 4's advantage is rating (4.8 vs 3.7) and ratings volume (24 vs 3). On ads, monetization model, device support and iOS requirement there is nothing between them.

Quartet 4 costs $16.99 and Walking Bass Trainer $2.99 up front. Quartet 4 sells 5 one-off in-app purchases. Walking Bass Trainer asks for nothing beyond the download.

Quartet 4 holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Quartet 4 has 24 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 89% of Quartet 4's written reviews are positive against 100% of Walking Bass Trainer's, so the app with the better star average is not the one people write more warmly about.

Quartet 4 ships an update monthly, Walking Bass Trainer every 3 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Quartet 4 | Walking Bass Trainer |
| --- | --- | --- |
| Price | $16.99 | **$2.99** |
| Rating | **[4.8 (24 ratings)](https://appshunter.io/ios/app/quartet-4/id6740534761/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/walking-bass-trainer/id6802367630/reviews) |
| Number of ratings | **24** | 3 |
| Positive reviews | 89.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Paid | Paid |
| Size | 528 MB | 15 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [UK Music Apps Ltd](https://appshunter.io/developer/579320222) | [Joe Gass](https://appshunter.io/developer/6802367632) |

## What reviewers say

### 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


### Walking Bass Trainer

[App page](https://appshunter.io/ios/app/walking-bass-trainer/id6802367630)

This app helps double bass players master chord tones across the entire fingerboard. It presents chords, keeps time, and uses your microphone to provide real-time feedback on intonation and accuracy.

**Highlights:** Chord tone identification, Real-time intonation feedback, Microphone input for accuracy, Progressive chord challenges, Full fingerboard practice, Tempo control

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

**In-app purchases:** none


## Frequently asked questions

### Is Quartet 4 free?

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

### Is Walking Bass Trainer free?

Walking Bass Trainer costs $2.99, with no in-app purchases.

### Which has better reviews, Quartet 4 or Walking Bass Trainer?

Quartet 4 is rated higher. Quartet 4 averages 4.8 out of 5 from 24 ratings, while Walking Bass Trainer averages 3.7 from 3 ratings.

### Do Quartet 4 or Walking Bass Trainer have ads?

Neither Quartet 4 nor Walking Bass Trainer shows ads.

### Which is updated more often, Quartet 4 or Walking Bass Trainer?

Quartet 4 ships an update monthly, and Walking Bass Trainer every 3 days. Most recently, Quartet 4 was updated on November 5, 2026 and Walking Bass Trainer on November 6, 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.*