# Projeto Caveira vs CTB

The clearest difference is in-app purchases: CTB at none against Projeto Caveira's 1. Projeto Caveira's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Projeto Caveira sells 1 one-off in-app purchase. CTB asks for nothing beyond the download.

Projeto Caveira ships an update every 3 weeks, CTB monthly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Projeto Caveira | CTB |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 35.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 45 MB | 38 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Projeto Caveira](https://appshunter.io/developer/1696180906) | [Ricardo de Oliveira Cardoso](https://appshunter.io/developer/1758204671) |

## What reviewers say

### Projeto Caveira

[App page](https://appshunter.io/ios/app/projeto-caveira/id6451004239)

Prepare-se para concursos policiais com simulados, um vasto banco de questões comentadas e flashcards interativos. Estude em qualquer lugar e a qualquer hora, com um sistema de revisão espaçada para otimizar seu aprendizado.

**Highlights:** Simulated exams, Commented teacher reviews, Police question bank, Customizable flashcards, Spaced repetition system, Study on any device

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CAVEIRA PASS CORE | $79.99 | one-time |


### CTB

[App page](https://appshunter.io/ios/app/ctb-2026/id6596763401)

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

**In-app purchases:** none


## Frequently asked questions

### Is Projeto Caveira free?

Projeto Caveira is free to download, with in-app purchases available.

### Is CTB free?

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

### Do Projeto Caveira or CTB have ads?

CTB shows ads; Projeto Caveira does not.

### Which is updated more often, Projeto Caveira or CTB?

Projeto Caveira ships an update every 3 weeks, and CTB monthly. Most recently, Projeto Caveira was updated on November 3, 2026 and CTB on November 4, 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.*