# VisiGrab vs BTREE Systems

The clearest difference is in-app purchases: BTREE Systems at none against VisiGrab's 1. BTREE Systems also leads on iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. VisiGrab sells 1 one-off in-app purchase. BTREE Systems asks for nothing beyond the download.

## The numbers

| Metric | VisiGrab | BTREE Systems |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (74 ratings)](https://appshunter.io/ios/app/visigrab-learn-to-code-and-dsa/id1484525469/reviews)** | — |
| Number of ratings | **74** | — |
| Positive reviews | 88.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 310 MB | 195 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ievgen Ovsii](https://appshunter.io/developer/1484523214) | [Testpress Tech Labs LLP](https://appshunter.io/developer/1235683817) |

## What reviewers say

### 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 |


### BTREE Systems

[App page](https://appshunter.io/ios/app/btree-systems/id6711338576)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VisiGrab free?

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

### Is BTREE Systems free?

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

### Do VisiGrab or BTREE Systems have ads?

Neither VisiGrab nor BTREE Systems shows ads.

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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.*