# Skydive Book vs Altimeter AURA

The clearest difference is in-app purchases: Altimeter AURA at none against Skydive Book's 2. Altimeter AURA also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.0). Skydive Book's advantage is update cadence (weekly vs every 4 months). On price and ads there is nothing between them.

Both are free to download. Skydive Book sells 2 in-app purchases, starting at $5.99 per month. Altimeter AURA asks for nothing beyond the download.

Skydive Book ships an update weekly, Altimeter AURA every 4 months. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Skydive Book | Altimeter AURA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 months |
| Size | 66 MB | 41 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andrei Malyshau](https://appshunter.io/developer/1729094189) | [Aleksandr Karpukov](https://appshunter.io/developer/1750084807) |

## What reviewers say

### Skydive Book

[App page](https://appshunter.io/ios/app/skydive-book/id6478469415)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Month | $5.99 | per month |
| One Year | $19.99 | per year |


### Altimeter AURA

[App page](https://appshunter.io/ios/app/altimeter-aura/id6503717677)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Skydive Book free?

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

### Is Altimeter AURA free?

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

### Do Skydive Book or Altimeter AURA have ads?

Neither Skydive Book nor Altimeter AURA shows ads.

### Which is updated more often, Skydive Book or Altimeter AURA?

Skydive Book ships an update weekly, and Altimeter AURA every 4 months. Most recently, Skydive Book was updated on October 8, 2026 and Altimeter AURA on October 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.*