# Delta vs Codelet

The clearest difference is rating: Codelet at 4.7 against Delta's 3.1. Codelet also leads on in-app purchases (none vs 3) and ratings volume (143 vs 7). Delta's advantage is review sentiment (67% vs 53%) and device support (4 vs 1). On price, update cadence and ads there is nothing between them.

Both are free to download. Delta sells 3 one-off in-app purchases. Codelet asks for nothing beyond the download.

Codelet holds the better App Store score, 4.7 against 3.1. That said, the two scores are not equally well evidenced: Codelet has 143 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 67% of Delta's written reviews are positive against 53% of Codelet's, so the app with the better star average is not the one people write more warmly about.

Delta ships an update monthly, Codelet every 2 months. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Delta | Codelet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (7 ratings)](https://appshunter.io/ios/app/delta-algorithms/id1436506800/reviews) | **[4.7 (143 ratings)](https://appshunter.io/ios/app/codelet/id1517315454/reviews)** |
| Number of ratings | 7 | **143** |
| Positive reviews | **66.7% of reviews** | 53.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Freemium | **Free** |
| Size | 5 MB | 55 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Groupe MINASTE](https://appshunter.io/developer/1378426984) | [Codelet LLC](https://appshunter.io/developer/1517315453) |

## What reviewers say

### Delta

[App page](https://appshunter.io/ios/app/delta-algorithms/id1436506800)

This app helps users solve math problems by creating and executing algorithms. It offers tools for homework checking, test preparation, and creating custom quizzes. Users can save, share, and download algorithms via the cloud.

**Highlights:** Create algorithms with natural language, Execute algorithms to solve math problems, Create and download custom quizzes, Save and share algorithms, Cloud synchronization for algorithms

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donation 1 | $0.99 | one-time |
| Donation 2 | $2.99 | one-time |
| Donation 3 | $4.99 | one-time |


### Codelet

[App page](https://appshunter.io/ios/app/codelet/id1517315454)

Prepare for technical interviews by identifying core coding patterns and analyzing your performance. Practice coding questions conveniently to improve your skills and pinpoint areas for growth.

**Highlights:** Identify core patterns, Analyze approaches, Track performance, Identify improvement areas, Practice coding questions, Anytime, anywhere practice

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Delta free?

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

### Is Codelet free?

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

### Which has better reviews, Delta or Codelet?

Codelet is rated higher. Delta averages 3.1 out of 5 from 7 ratings, while Codelet averages 4.7 from 143 ratings.

### Do Delta or Codelet have ads?

Neither Delta nor Codelet shows ads.

### Which is updated more often, Delta or Codelet?

Delta ships an update monthly, and Codelet every 2 months. Most recently, Delta was updated on October 14, 2026 and Codelet on October 19, 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.*