# Centec vs Prosa

The clearest difference is in-app purchases: Centec at none against Prosa's 4. Centec also leads on ads (none vs shown) and update cadence (every 4 days vs every 9 days). Prosa's advantage is iOS requirement (12.4 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Prosa sells 4 in-app purchases, starting at $6.49 per month. Centec asks for nothing beyond the download.

Centec ships an update every 4 days, Prosa every 9 days. The most recent releases landed on September 16, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Centec | Prosa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (43 ratings)](https://appshunter.io/ios/app/prosa/id1619723707/reviews)** |
| Number of ratings | — | **43** |
| Positive reviews | — | 40.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 76 MB | 64 MB |
| Requires iOS | 15.0 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [POLYGONUS LTDA](https://appshunter.io/developer/1352794431) | [Prosa Learning Pty Ltd](https://appshunter.io/developer/1619723709) |

## What reviewers say

### Centec

[App page](https://appshunter.io/ios/app/centec/id1508428070)

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

**In-app purchases:** none


### Prosa

[App page](https://appshunter.io/ios/app/prosa/id1619723707)

Master essential English vocabulary and phrases through interactive speaking practice and explainer videos. This app uses spaced repetition to reinforce learning and is designed specifically for Brazilian learners.

**Highlights:** Learn essential everyday vocabulary, Voice recognition practice, 110 explainer videos on common mistakes, Spaced repetition system, Tailored for Brazilian learners

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| English course - Monthly | $6.49 | per month |
| English Beginner Course | $35.99 | one-time |
| English Beginner Course | $42.99 | one-time |
| English Beginner Course | $49.99 | one-time |


## Frequently asked questions

### Is Centec free?

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

### Is Prosa free?

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

### Do Centec or Prosa have ads?

Prosa shows ads; Centec does not.

### Which is updated more often, Centec or Prosa?

Centec ships an update every 4 days, and Prosa every 9 days. Most recently, Centec was updated on September 16, 2026 and Prosa on September 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*