# Euclid Lab vs Geometry Handbook

The clearest difference is in-app purchases: Euclid Lab at none against Geometry Handbook's 3. Geometry Handbook's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Geometry Handbook sells 3 in-app purchases, starting at $1.99 per month. Euclid Lab asks for nothing beyond the download.

Euclid Lab ships an update every 3 days, Geometry Handbook every 4 days. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Euclid Lab | Geometry Handbook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 4 days |
| Size | 14 MB | 73 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yung-Hsin Shieh](https://appshunter.io/developer/6794223212) | [Oleg Korunov](https://appshunter.io/developer/6811071409) |

## What reviewers say

### Euclid Lab

[App page](https://appshunter.io/ios/app/euclid-lab/id6801162141)

**Features:** Family Sharing, Vision Pro support

**In-app purchases:** none


### Geometry Handbook

[App page](https://appshunter.io/ios/app/geometry-handbook/id6816097003)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Geometry Pro · Monthly | $1.99 | per month |
| Geometry Pro · Yearly | $9.99 | per year |
| Geometry Pro — Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Euclid Lab free?

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

### Is Geometry Handbook free?

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

### Do Euclid Lab or Geometry Handbook have ads?

Neither Euclid Lab nor Geometry Handbook shows ads.

### Which is updated more often, Euclid Lab or Geometry Handbook?

Euclid Lab ships an update every 3 days, and Geometry Handbook every 4 days. Most recently, Euclid Lab was updated on November 6, 2026 and Geometry Handbook 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.*