# Algorithms vs Prep Circa

The clearest difference is in-app purchases: Prep Circa at none against Algorithms's 1. Algorithms's advantage is iOS requirement (12.0 vs 14.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Algorithms sells 1 one-off in-app purchase. Prep Circa asks for nothing beyond the download.

Algorithms ships an update every 6 weeks, Prep Circa every 2 months. The most recent releases landed on August 24, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | Algorithms | Prep Circa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (101 ratings)](https://appshunter.io/ios/app/algorithms-explained-and-animated/id1047532631/reviews)** | — |
| Number of ratings | **101** | — |
| Positive reviews | 90.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 32 MB | 155 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Moriteru Ishida](https://appshunter.io/developer/1047532630) | [Dashur AI LLC](https://appshunter.io/developer/1742272567) |

## What reviewers say

### Algorithms

[App page](https://appshunter.io/ios/app/algorithms-explained-and-animated/id1047532631)

Explore and learn about a wide range of algorithms through clear explanations and animations. Deepen your understanding with interactive simulation modes and discover algorithms related to encryption and security. This app offers a comprehensive journey into the world of computer science concepts.

**Highlights:** Animated algorithm explanations, Interactive simulation mode, Encryption and security algorithms, Data structures explained, Sorting algorithms, Graph search algorithms

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All of the algorithms | $2.99 | one-time |

**What reviewers like**

- ✨ Clear and understandable explanations
- 🖼️ Excellent visualizations and animations
- 🧠 Great for learning and understanding algorithms
- 💡 Thoughtfully designed and implemented
- 💰 Worth the purchase/price

**What reviewers complain about**

- ❓ Lacks code examples/snippets
- ❓ Missing time complexity (Big O)
- ❓ Limited number of algorithms
- ❓ Some users confused about pricing/charges
- ❓ Simulation block repetition

**Requested features**

- Add code examples (Python, C++, JS)
- Include time complexity (Big O notation)
- Add more algorithms
- Include AI-related algorithms (neural networks, reinforcement learning)
- Add propositional and set logic for programmers


### Prep Circa

[App page](https://appshunter.io/ios/app/prep-circa/id6499061920)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Algorithms free?

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

### Is Prep Circa free?

Prep Circa is free to download, with no in-app purchases.

### Do Algorithms or Prep Circa have ads?

Neither Algorithms nor Prep Circa shows ads.

### Which is updated more often, Algorithms or Prep Circa?

Algorithms ships an update every 6 weeks, and Prep Circa every 2 months. Most recently, Algorithms was updated on August 24, 2026 and Prep Circa on August 13, 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.*