# XobéBook vs AXIOM

The clearest difference is in-app purchases: XobéBook at none against AXIOM's 6. AXIOM's advantage is update cadence (every 3 days vs fortnightly) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. AXIOM sells 6 in-app purchases, starting at $7.99 per month. XobéBook asks for nothing beyond the download.

XobéBook ships an update fortnightly, AXIOM every 3 days. The most recent releases landed on November 13, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | XobéBook | AXIOM |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 8.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 41 MB | 149 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Abdourahmane Fall](https://appshunter.io/developer/1752052847) | [navid gahier](https://appshunter.io/developer/1797890438) |

## What reviewers say

### XobéBook

[App page](https://appshunter.io/ios/app/xobebook/id6756220512)

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

**In-app purchases:** none


### AXIOM

[App page](https://appshunter.io/ios/app/axiom-maths-and-sciences/id6799700069)

This app teaches high school math and science concepts through interactive manipulation and problem-solving. It breaks down complex topics, allowing users to understand the 'why' before presenting formulas. Start with daily free lessons or unlock unlimited access with a subscription.

**Highlights:** Interactive manipulation of concepts, Problem-based learning approach, 52 levels from high school to advanced, No advertising, Daily free lessons, Progressive learning path

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AXIOM Prime Monthly | $7.99 | per month |
| Axiom Pro Monthly | $7.99 | per month |
| AXIOM Prime Monthly | $12.00 | per month |
| AXIOM Prime Yearly | $49.99 | per year |
| Axiom Pro Yearly | $49.99 | per year |
| AXIOM Prime Yearly | $82.00 | per year |


## Frequently asked questions

### Is XobéBook free?

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

### Is AXIOM free?

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

### Do XobéBook or AXIOM have ads?

Neither XobéBook nor AXIOM shows ads.

### Which is updated more often, XobéBook or AXIOM?

XobéBook ships an update fortnightly, and AXIOM every 3 days. Most recently, XobéBook was updated on November 13, 2026 and AXIOM on November 12, 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.*