# JamEngine vs RiffAlly Scales

JamEngine and RiffAlly Scales are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. JamEngine sells 1 one-off in-app purchase and RiffAlly Scales sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

JamEngine ships an update every 5 days, RiffAlly Scales every 3 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | JamEngine | RiffAlly Scales |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Size | 149 MB | 2 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Orcun Keskin](https://appshunter.io/developer/1681326325) | [Fernando Lanner Cardoso](https://appshunter.io/developer/6806420473) |

## What reviewers say

### JamEngine

[App page](https://appshunter.io/ios/app/jamengine/id6759828737)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JamEngine Pro | $8.99 | one-time |


### RiffAlly Scales

[App page](https://appshunter.io/ios/app/riffally-scales/id6806687459)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small tip | $1.99 | one-time |
| Supporter tip | $4.99 | one-time |
| Generous tip | $9.99 | one-time |


## Frequently asked questions

### Is JamEngine free?

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

### Is RiffAlly Scales free?

RiffAlly Scales is free to download, with in-app purchases available.

### Do JamEngine or RiffAlly Scales have ads?

Neither JamEngine nor RiffAlly Scales shows ads.

### Which is updated more often, JamEngine or RiffAlly Scales?

JamEngine ships an update every 5 days, and RiffAlly Scales every 3 days. Most recently, JamEngine was updated on October 24, 2026 and RiffAlly Scales on October 31, 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.*