# VI vs TexBook

The clearest difference is update cadence: VI at every 9 days against TexBook's monthly. VI also leads on iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

VI ships an update every 9 days, TexBook monthly. The most recent releases landed on October 2, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | VI | TexBook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Size | 75 MB | 12 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [khemra ly](https://appshunter.io/developer/1454093664) | [Sevheng Luy](https://appshunter.io/developer/6790713645) |

## What reviewers say

### VI

[App page](https://appshunter.io/ios/app/vi-school/id1454093665)

**Features:** macOS Compatibility

**In-app purchases:** none


### TexBook

[App page](https://appshunter.io/ios/app/texbook/id6790713643)

**In-app purchases:** none


## Frequently asked questions

### Is VI free?

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

### Is TexBook free?

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

### Do VI or TexBook have ads?

Neither VI nor TexBook shows ads.

### Which is updated more often, VI or TexBook?

VI ships an update every 9 days, and TexBook monthly. Most recently, VI was updated on October 2, 2026 and TexBook on October 9, 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.*