# Reliability of systems vs Dreamtime Learning

The clearest difference is in-app purchases: Dreamtime Learning at none against Reliability of systems's 1. Dreamtime Learning also leads on update cadence (every 3 weeks vs every 18 months). Reliability of systems's advantage is iOS requirement (13.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. Reliability of systems sells 1 one-off in-app purchase. Dreamtime Learning asks for nothing beyond the download.

Reliability of systems ships an update every 18 months, Dreamtime Learning every 3 weeks. The most recent releases landed on October 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Reliability of systems | Dreamtime Learning |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 3 weeks** |
| Size | 4 MB | 137 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [DREAMTIME LEARNING PRIVATE LIMITED](https://appshunter.io/developer/1886063540) |

## What reviewers say

### Reliability of systems

[App page](https://appshunter.io/ios/app/reliability-of-systems/id6443837301)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro feature | $1.99 | one-time |


### Dreamtime Learning

[App page](https://appshunter.io/ios/app/dreamtime-learning/id6760747785)

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

**In-app purchases:** none


## Frequently asked questions

### Is Reliability of systems free?

Reliability of systems is free to download, with in-app purchases available.

### Is Dreamtime Learning free?

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

### Do Reliability of systems or Dreamtime Learning have ads?

Neither Reliability of systems nor Dreamtime Learning shows ads.

### Which is updated more often, Reliability of systems or Dreamtime Learning?

Reliability of systems ships an update every 18 months, and Dreamtime Learning every 3 weeks. Most recently, Reliability of systems was updated on October 10, 2026 and Dreamtime Learning on October 31, 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.*