Delta vs Codelet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Delta
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.
- Create algorithms with natural language
- Execute algorithms to solve math problems
- Create and download custom quizzes
- Save and share algorithms
- Cloud synchronization for algorithms
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With Delta: Algorithms, quickly solve any math problem with an algorithm. Save time checking your homework or studying for a test, it’s free! AVAILABLE FEATURES - Create algorithms with an easy and natural language in the editor - Quickly execute algorithms to solve any math problem - Create (or download) a quiz to train yourself - Save your algorithms on your device, share then on the Cloud, or download ready-to-use algorithms shared by other people EXAMPLE OF USAGE - Create an automated calculator for well known theorems or equations - Create a quiz to train solving equations CLOUD SUBSCRIPTION A Cloud subscription is available; It allows you to synchronize your algorithms across your devices and share them with other people on the Cloud. Application developed by Nathan Fallet © 2020 Groupe MINASTE
Codelet
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.
- Identify core patterns
- Analyze approaches
- Track performance
- Identify improvement areas
- Practice coding questions
- Anytime, anywhere practice
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∙ Identify and analyze the core patterns and approaches ∙ View how well you’re doing and where you can improve ∙ Practice coding questions anywhere and anytime
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Delta | Codelet |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (7 ratings) | 4.7 (143 ratings) — better |
| Positive reviews | 66.7% of reviews — better | 53.3% of reviews |
| Number of ratings | 7 | 143 — better |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 5 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Groupe MINASTE | Codelet LLC |
Customer experience
Delta
Codelet
In-app purchases
Delta
- Donation 1$0.99
- Donation 2$2.99
- Donation 3$4.99
Codelet
No in-app purchases
