# 37 Congreso SAP vs SDF

The clearest difference is update cadence: 37 Congreso SAP at every 4 days against SDF's every 4 months. 37 Congreso SAP also leads on iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

37 Congreso SAP ships an update every 4 days, SDF every 4 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | 37 Congreso SAP | SDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 4 months |
| Size | 45 MB | 42 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [PI GROUP SAS](https://appshunter.io/developer/1056970229) | [Colegio de Escribanos de la Ciudad de Buenos Aires](https://appshunter.io/developer/1185879051) |

## What reviewers say

### 37 Congreso SAP

[App page](https://appshunter.io/ios/app/37-congreso-sap/id6737246800)

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

**In-app purchases:** none


### SDF

[App page](https://appshunter.io/ios/app/sdf/id6747388469)

**In-app purchases:** none


## Frequently asked questions

### Is 37 Congreso SAP free?

37 Congreso SAP is free to download, with no in-app purchases.

### Is SDF free?

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

### Do 37 Congreso SAP or SDF have ads?

Neither 37 Congreso SAP nor SDF shows ads.

### Which is updated more often, 37 Congreso SAP or SDF?

37 Congreso SAP ships an update every 4 days, and SDF every 4 months. Most recently, 37 Congreso SAP was updated on October 30, 2026 and SDF on October 30, 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.*