# teXplain vs SQUBY27

The clearest difference is update cadence: SQUBY27 at every 3 days against teXplain's every 18 months. 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.

teXplain ships an update every 18 months, SQUBY27 every 3 days. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | teXplain | SQUBY27 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 3 days** |
| Size | 50 MB | 53 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tipli - Tecnologie Informatiche Per L'innovazione ODV](https://appshunter.io/developer/1596563911) | [iGrest Srl](https://appshunter.io/developer/1591379131) |

## What reviewers say

### teXplain

[App page](https://appshunter.io/ios/app/texplain/id6469552575)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### SQUBY27

[App page](https://appshunter.io/ios/app/squby27/id6779393298)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is teXplain free?

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

### Is SQUBY27 free?

SQUBY27 is free to download, with no in-app purchases.

### Do teXplain or SQUBY27 have ads?

Neither teXplain nor SQUBY27 shows ads.

### Which is updated more often, teXplain or SQUBY27?

teXplain ships an update every 18 months, and SQUBY27 every 3 days. Most recently, teXplain was updated on October 8, 2026 and SQUBY27 on October 10, 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.*