# ProfessorApp Educa + Macaé vs PSi4 Mobile

The clearest difference is update cadence: ProfessorApp Educa + Macaé at monthly against PSi4 Mobile's every 3 months. PSi4 Mobile's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price, ads and in-app purchases there is nothing between them.

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

ProfessorApp Educa + Macaé ships an update monthly, PSi4 Mobile every 3 months. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ProfessorApp Educa + Macaé | PSi4 Mobile |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Size | 77 MB | 33 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [Alexandre Nascimento](https://appshunter.io/developer/1124542723) | [Marcelo Hernandes](https://appshunter.io/developer/1687340944) |

## What reviewers say

### ProfessorApp Educa + Macaé

[App page](https://appshunter.io/ios/app/professorapp-educa-plus-macae/id6444220047)

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

**In-app purchases:** none


### PSi4 Mobile

[App page](https://appshunter.io/ios/app/psi4-mobile/id6448998238)

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

**In-app purchases:** none


## Frequently asked questions

### Is ProfessorApp Educa + Macaé free?

ProfessorApp Educa + Macaé is free to download, with no in-app purchases.

### Is PSi4 Mobile free?

PSi4 Mobile is free to download, with no in-app purchases.

### Do ProfessorApp Educa + Macaé or PSi4 Mobile have ads?

Neither ProfessorApp Educa + Macaé nor PSi4 Mobile shows ads.

### Which is updated more often, ProfessorApp Educa + Macaé or PSi4 Mobile?

ProfessorApp Educa + Macaé ships an update monthly, and PSi4 Mobile every 3 months. Most recently, ProfessorApp Educa + Macaé was updated on October 7, 2026 and PSi4 Mobile on October 15, 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.*