# Detail Dynamo vs Jet24

The clearest difference is in-app purchases: Jet24 at none against Detail Dynamo's 1. Jet24 also leads on update cadence (every 4 months vs every 39 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Detail Dynamo sells 1 one-off in-app purchase. Jet24 asks for nothing beyond the download.

Detail Dynamo ships an update every 39 months, Jet24 every 4 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Detail Dynamo | Jet24 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 4 months** |
| Size | 34 MB | 168 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BrainTrain Inc.](https://appshunter.io/developer/584469134) | [UAT Univerasal Aviation Training Ltd](https://appshunter.io/developer/1309605623) |

## What reviewers say

### Detail Dynamo

[App page](https://appshunter.io/ios/app/detail-dynamo-memory-trainer/id1211854259)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


### Jet24

[App page](https://appshunter.io/ios/app/jet24/id1554276695)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Detail Dynamo free?

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

### Is Jet24 free?

Jet24 is free to download, with no in-app purchases.

### Do Detail Dynamo or Jet24 have ads?

Neither Detail Dynamo nor Jet24 shows ads.

### Which is updated more often, Detail Dynamo or Jet24?

Detail Dynamo ships an update every 39 months, and Jet24 every 4 months. Most recently, Detail Dynamo was updated on November 6, 2026 and Jet24 on November 7, 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.*