# Learn Digestive System vs CloudLabs Weak Acids and Bases

The clearest difference is price: CloudLabs Weak Acids and Bases at Free against Learn Digestive System's $2.99. CloudLabs Weak Acids and Bases also leads on iOS requirement (9.0 vs 11.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

CloudLabs Weak Acids and Bases is free to download; Learn Digestive System costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Learn Digestive System ships an update every 36 months, CloudLabs Weak Acids and Bases every 27 months. The most recent releases landed on August 13, 2026 and December 7, 2025 respectively.

## The numbers

| Metric | Learn Digestive System | CloudLabs Weak Acids and Bases |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 27 months** |
| Size | 14 MB | 79 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Nurten PIRLI](https://appshunter.io/developer/1495958705) | [Jiovany Orozco](https://appshunter.io/developer/1114670847) |

## What reviewers say

### Learn Digestive System

[App page](https://appshunter.io/ios/app/learn-digestive-system/id1502378106)

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

**In-app purchases:** none


### CloudLabs Weak Acids and Bases

[App page](https://appshunter.io/ios/app/cloudlabs-weak-acids-and-bases/id1596507143)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Learn Digestive System free?

Learn Digestive System costs $2.99, with no in-app purchases.

### Is CloudLabs Weak Acids and Bases free?

CloudLabs Weak Acids and Bases is free to download, with no in-app purchases.

### Do Learn Digestive System or CloudLabs Weak Acids and Bases have ads?

Neither Learn Digestive System nor CloudLabs Weak Acids and Bases shows ads.

### Which is updated more often, Learn Digestive System or CloudLabs Weak Acids and Bases?

Learn Digestive System ships an update every 36 months, and CloudLabs Weak Acids and Bases every 27 months. Most recently, Learn Digestive System was updated on August 13, 2026 and CloudLabs Weak Acids and Bases on December 7, 2025.

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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.*