# e vs Professor Ferretto

The clearest difference is review sentiment: Professor Ferretto at 25% against e's 15%. On price, update cadence, 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.

e ships an update monthly, Professor Ferretto every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | e | Professor Ferretto |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/e-card-usp/id1286783365/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 15.0% of reviews | **25.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 6 MB | 30 MB |
| Requires iOS | 17.6 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Universidade de São Paulo](https://appshunter.io/developer/552358548) | [Ferretto Cursos On Line LTDA](https://appshunter.io/developer/1621502437) |

## What reviewers say

### e

[App page](https://appshunter.io/ios/app/e-card-usp/id1286783365)

This digital ID card for USP students and staff replaces the physical one, granting access to campus facilities like restaurants, turnstiles, and libraries. It allows users to manage multiple cards and serves as official identification within the university. Requires a data connection for use.

**Highlights:** Digital student and staff identification, Access to restaurants, turnstiles, and libraries, Manage multiple university cards, Replaces physical ID card, Official USP identification

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

**In-app purchases:** none


### Professor Ferretto

[App page](https://appshunter.io/ios/app/professor-ferretto/id1621502015)

Access a comprehensive online learning platform with expert instructors for various subjects. Download video lessons for offline viewing and enjoy a user-friendly study environment designed for ENEM and traditional university entrance exam preparation.

**Highlights:** Offline video lessons, Downloadable content, Expert instructors, User-friendly interface, ENEM and Vestibular preparation

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

**In-app purchases:** none


## Frequently asked questions

### Is e free?

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

### Is Professor Ferretto free?

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

### Do e or Professor Ferretto have ads?

Neither e nor Professor Ferretto shows ads.

### Which is updated more often, e or Professor Ferretto?

e ships an update monthly, and Professor Ferretto every 3 weeks. Most recently, e was updated on November 3, 2026 and Professor Ferretto on November 3, 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.*