# PUCRS Online vs Instituto Four

The clearest difference is update cadence: PUCRS Online at fortnightly against Instituto Four's every 2 months. PUCRS Online also leads on iOS requirement (13.0 vs 16.4). 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.

PUCRS Online ships an update fortnightly, Instituto Four every 2 months. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | PUCRS Online | Instituto Four |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (84 ratings)](https://appshunter.io/ios/app/pucrs-online/id1501764041/reviews)** | — |
| Number of ratings | **84** | — |
| Positive reviews | 6.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free | — |
| Size | 86 MB | 79 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ciatech](https://appshunter.io/developer/653156349) | [WAID](https://appshunter.io/developer/1690041207) |

## What reviewers say

### PUCRS Online

[App page](https://appshunter.io/ios/app/pucrs-online/id1501764041)

Access all your course materials and lectures easily from your mobile device. Download lessons for offline viewing, listen to them as audio, and resume playback exactly where you left off. Share your favorite lesson snippets with friends.

**Highlights:** Mobile course material access, Downloadable lessons for offline viewing, Audio playback of lessons, Resume playback from last point, Share lesson snippets

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

**In-app purchases:** none


### Instituto Four

[App page](https://appshunter.io/ios/app/instituto-four/id6670444962)

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

**In-app purchases:** none


## Frequently asked questions

### Is PUCRS Online free?

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

### Is Instituto Four free?

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

### Do PUCRS Online or Instituto Four have ads?

Neither PUCRS Online nor Instituto Four shows ads.

### Which is updated more often, PUCRS Online or Instituto Four?

PUCRS Online ships an update fortnightly, and Instituto Four every 2 months. Most recently, PUCRS Online was updated on October 25, 2026 and Instituto Four on October 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.*