# Geometry vs pH Lab

The clearest difference is price: pH Lab at Free against Geometry's $1.99. Geometry's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

pH Lab is free to download; Geometry costs $1.99 up front. pH Lab sells 1 one-off in-app purchase. Geometry asks for nothing beyond the download.

## The numbers

| Metric | Geometry | pH Lab |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | — |
| Size | 31 MB | 14 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Om Prakash Chapagain](https://appshunter.io/developer/1618620262) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### Geometry

[App page](https://appshunter.io/ios/app/geometry-solver-pro/id1618832615)

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

**In-app purchases:** none


### pH Lab

[App page](https://appshunter.io/ios/app/ph-lab-chemistry-simulator/id6760988065)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $2.99 | one-time |


## Frequently asked questions

### Is Geometry free?

Geometry costs $1.99, with no in-app purchases.

### Is pH Lab free?

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

### Do Geometry or pH Lab have ads?

pH Lab shows ads; Geometry does not.

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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.*