# Loop Slower vs Jazz Progression Trainer

The clearest difference is price: Loop Slower at $0.99 against Jazz Progression Trainer's $2.99. Jazz Progression Trainer's advantage is iOS requirement (15.1 vs 17.1). On ads, in-app purchases and device support there is nothing between them.

Loop Slower costs $0.99 and Jazz Progression Trainer $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Loop Slower | Jazz Progression Trainer |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | — |
| Size | 5 MB | 22 MB |
| Requires iOS | 17.1 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Algirdas Gridziuska](https://appshunter.io/developer/1054530337) | [tabito ozaki](https://appshunter.io/developer/1884003335) |

## What reviewers say

### Loop Slower

[App page](https://appshunter.io/ios/app/loop-slower/id6680190953)

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

**In-app purchases:** none


### Jazz Progression Trainer

[App page](https://appshunter.io/ios/app/jazz-progression-trainer/id6761685294)

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

**In-app purchases:** none


## Frequently asked questions

### Is Loop Slower free?

Loop Slower costs $0.99, with no in-app purchases.

### Is Jazz Progression Trainer free?

Jazz Progression Trainer costs $2.99, with no in-app purchases.

### Do Loop Slower or Jazz Progression Trainer have ads?

Neither Loop Slower nor Jazz Progression Trainer shows ads.

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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.*