# Delta vs VisiGrab

The clearest difference is rating: VisiGrab at 4.8 against Delta's 3.1. VisiGrab also leads on review sentiment (88% vs 67%) and ratings volume (74 vs 7). Delta's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Delta sells 3 one-off in-app purchases and VisiGrab sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

VisiGrab holds the better App Store score, 4.8 against 3.1. That said, the two scores are not equally well evidenced: VisiGrab has 74 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 67% of Delta's written reviews are positive against 88% of VisiGrab's.

Delta ships an update monthly, VisiGrab every 3 weeks. The most recent releases landed on September 29, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Delta | VisiGrab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (7 ratings)](https://appshunter.io/ios/app/delta-algorithms/id1436506800/reviews) | **[4.8 (74 ratings)](https://appshunter.io/ios/app/visigrab-learn-to-code-and-dsa/id1484525469/reviews)** |
| Number of ratings | 7 | **74** |
| Positive reviews | 66.7% of reviews | **88.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 5 MB | 310 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Groupe MINASTE](https://appshunter.io/developer/1378426984) | [Ievgen Ovsii](https://appshunter.io/developer/1484523214) |

## 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 |


### VisiGrab

[App page](https://appshunter.io/ios/app/visigrab-learn-to-code-and-dsa/id1484525469)

This app offers an interactive, visual guide to mastering algorithms and data structures. It transforms complex concepts into intuitive experiences with dynamic visualizations and step-by-step explanations. Prepare for technical interviews and enhance your coding skills with comprehensive coverage and code examples.

**Highlights:** Interactive visualizations, Step-by-step algorithm unfolding, Comprehensive DSA coverage, Code examples in Python and Java, Gamified learning, Offline access, Lifetime access

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access — All Content | $6.99 | one-time |


## Frequently asked questions

### Is Delta free?

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

### Is VisiGrab free?

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

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

VisiGrab is rated higher. Delta averages 3.1 out of 5 from 7 ratings, while VisiGrab averages 4.8 from 74 ratings.

### Do Delta or VisiGrab have ads?

Neither Delta nor VisiGrab shows ads.

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

Delta ships an update monthly, and VisiGrab every 3 weeks. Most recently, Delta was updated on September 29, 2026 and VisiGrab on September 27, 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.*