# Carteirinha vs Duda

Carteirinha and Duda both sit at 5.0 stars, but that hides the real split: 53% of Carteirinha's written reviews are positive against 22% of Duda's. Duda's advantage is ratings volume (102 vs 1). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Carteirinha against 4.9 for Duda. That said, the two scores are not equally well evidenced: Duda has 102 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 53% of Carteirinha's written reviews are positive against 22% of Duda's.

Carteirinha ships an update fortnightly, Duda weekly. Both last shipped on September 22, 2026.

## The numbers

| Metric | Carteirinha | Duda |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/carteirinha/id1476399490/reviews)** | [4.9 (102 ratings)](https://appshunter.io/ios/app/duda/id6451416655/reviews) |
| Number of ratings | 1 | **102** |
| Positive reviews | **52.5% of reviews** | 21.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free | Free |
| Size | 49 MB | 100 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Inova Tecnologia](https://appshunter.io/developer/1476399489) | [Cruzeiro Do Sul Educacional Sa.](https://appshunter.io/developer/1296966413) |

## What reviewers say

### Carteirinha

[App page](https://appshunter.io/ios/app/carteirinha/id1476399490)

This platform offers products and services for high school, technical, and university students. It allows for physical student ID requests and provides access to digital university IDs for mobile access control and more.

**Highlights:** Physical student ID requests, Digital university ID access, Mobile access control, Student products and services

**Features:** macOS Compatibility

**In-app purchases:** none


### Duda

[App page](https://appshunter.io/ios/app/duda/id6451416655)

This app guides students through their academic and professional journeys. It helps manage academic life and explore career options, keeping users informed and organized.

**Highlights:** Academic life management, Career exploration, Personalized educational partner, Information and organization, Goal achievement support

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

**In-app purchases:** none


## Frequently asked questions

### Is Carteirinha free?

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

### Is Duda free?

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

### Which has better reviews, Carteirinha or Duda?

Carteirinha is rated higher. Carteirinha averages 5.0 out of 5 from 1 ratings, while Duda averages 4.9 from 102 ratings.

### Do Carteirinha or Duda have ads?

Neither Carteirinha nor Duda shows ads.

### Which is updated more often, Carteirinha or Duda?

Carteirinha ships an update fortnightly, and Duda weekly. Most recently, Carteirinha was updated on September 22, 2026 and Duda on September 22, 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.*