# Fretloop vs SUS4 Backing Tracks

The clearest difference is in-app purchases: Fretloop at none against SUS4 Backing Tracks's 3. Fretloop also leads on update cadence (weekly vs fortnightly). SUS4 Backing Tracks's advantage is iOS requirement (16.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. SUS4 Backing Tracks sells 3 in-app purchases, starting at $0.99 per month. Fretloop asks for nothing beyond the download.

Fretloop ships an update weekly, SUS4 Backing Tracks fortnightly. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Fretloop | SUS4 Backing Tracks |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Size | 28 MB | 45 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Miller](https://appshunter.io/developer/1541008505) | [ThePaulSmith](https://appshunter.io/developer/319584506) |

## What reviewers say

### Fretloop

[App page](https://appshunter.io/ios/app/fretloop/id6761345559)

**Features:** Vision Pro support

**In-app purchases:** none


### SUS4 Backing Tracks

[App page](https://appshunter.io/ios/app/sus4-backing-tracks-jam-along/id6777230344)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SUS4 Backing Tracks Pro Monthl | $0.99 | per month |
| SUS4 All-Access | $4.99 | per month |
| SUS4 Backing Tracks Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Fretloop free?

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

### Is SUS4 Backing Tracks free?

SUS4 Backing Tracks is free to download, with in-app purchases available.

### Do Fretloop or SUS4 Backing Tracks have ads?

Neither Fretloop nor SUS4 Backing Tracks shows ads.

### Which is updated more often, Fretloop or SUS4 Backing Tracks?

Fretloop ships an update weekly, and SUS4 Backing Tracks fortnightly. Most recently, Fretloop was updated on October 14, 2026 and SUS4 Backing Tracks on October 25, 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.*