# Algorithms vs Diff Checker

The clearest difference is update cadence: Algorithms at weekly against Diff Checker's every 2 months. Algorithms also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Algorithms sells 3 one-off in-app purchases and Diff Checker sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Algorithms ships an update weekly, Diff Checker every 2 months. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Algorithms | Diff Checker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/algorithms-animated-learning/id6744860350/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 5 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [琰琰 胡](https://appshunter.io/developer/1809315777) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Algorithms

[App page](https://appshunter.io/ios/app/algorithms-animated-learning/id6744860350)

This app makes learning complex algorithms intuitive through dynamic, step-by-step animations and line-by-line code analysis. It offers case-based problem explanations, in-depth algorithm analysis, and weekly updates with trending problems. Ideal for students, job seekers, and competitive programmers.

**Highlights:** Dynamic animated demonstrations, Line-by-line code analysis, Case-based problem explanations, Algorithm analysis and insights, Weekly trending algorithm updates

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock easy problems | $1.99 | one-time |
| Unlock medium & hard problems | $2.99 | one-time |
| Unlock all problems | $3.99 | one-time |


### Diff Checker

[App page](https://appshunter.io/ios/app/diff-checker-text-compare/id6772266827)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $14.99 | per year |


## Frequently asked questions

### Is Algorithms free?

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

### Is Diff Checker free?

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

### Do Algorithms or Diff Checker have ads?

Neither Algorithms nor Diff Checker shows ads.

### Which is updated more often, Algorithms or Diff Checker?

Algorithms ships an update weekly, and Diff Checker every 2 months. Most recently, Algorithms was updated on October 24, 2026 and Diff Checker on October 14, 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.*