# SFRAA vs Concretize

The clearest difference is in-app purchases: SFRAA at none against Concretize's 1. Concretize's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Concretize sells 1 in-app purchase, starting at $199.99 per 3 months. SFRAA asks for nothing beyond the download.

SFRAA ships an update every 3 weeks, Concretize every 4 days. The most recent releases landed on September 10, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | SFRAA | Concretize |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Size | 128 MB | 15 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MillionTask, Unipessoal, Lda](https://appshunter.io/developer/1512744672) | [Silhueta Magnifica Unipessoal LDA](https://appshunter.io/developer/1822852516) |

## What reviewers say

### SFRAA

[App page](https://appshunter.io/ios/app/sfraa/id6479513055)

**In-app purchases:** none


### Concretize

[App page](https://appshunter.io/ios/app/concretize/id6758898886)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Concretize Trimestral | $199.99 | per 3 months |


## Frequently asked questions

### Is SFRAA free?

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

### Is Concretize free?

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

### Do SFRAA or Concretize have ads?

Neither SFRAA nor Concretize shows ads.

### Which is updated more often, SFRAA or Concretize?

SFRAA ships an update every 3 weeks, and Concretize every 4 days. Most recently, SFRAA was updated on September 10, 2026 and Concretize on September 11, 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.*