# Ammonia vs TouchScope Pro

The clearest difference is price: TouchScope Pro at Free against Ammonia's $0.99. TouchScope Pro also leads on update cadence (every 2 months vs every 30 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

TouchScope Pro is free to download; Ammonia costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Ammonia ships an update every 30 months, TouchScope Pro every 2 months. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Ammonia | TouchScope Pro |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/ammonia-structure-and-properties/id1186158646/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 23 MB | 26 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [www.ajaxmediatech.com](https://appshunter.io/developer/973768003) | [驰 郑](https://appshunter.io/developer/1390937565) |

## What reviewers say

### Ammonia

[App page](https://appshunter.io/ios/app/ammonia-structure-and-properties/id1186158646)

Explore the structure and properties of ammonia through interactive 3D simulations, videos, and DIY activities. This app makes learning chemistry engaging for students aged 11-15.

**Highlights:** 3D simulations and videos, Interactive DIY activities, Quiz section for assessment, Learn about ammonia and its properties, Practice interactive exercises

**Features:** macOS Compatibility

**In-app purchases:** none


### TouchScope Pro

[App page](https://appshunter.io/ios/app/touchscope-pro/id1439150535)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ammonia free?

Ammonia costs $0.99, with no in-app purchases.

### Is TouchScope Pro free?

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

### Do Ammonia or TouchScope Pro have ads?

Neither Ammonia nor TouchScope Pro shows ads.

### Which is updated more often, Ammonia or TouchScope Pro?

Ammonia ships an update every 30 months, and TouchScope Pro every 2 months. Most recently, Ammonia was updated on October 14, 2026 and TouchScope Pro on October 5, 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.*