# DigitalSign Brasil vs CarM3

The clearest difference is ads: DigitalSign Brasil at none against CarM3's shown. DigitalSign Brasil also leads on iOS requirement (9.0 vs 15.1). CarM3's advantage is update cadence (every 10 days vs every 2 months). On price, 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.

DigitalSign Brasil ships an update every 2 months, CarM3 every 10 days. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | DigitalSign Brasil | CarM3 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 23 MB | 64 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [DigitalSign](https://appshunter.io/developer/1499466154) | [Alexandre Auler](https://appshunter.io/developer/1485334988) |

## What reviewers say

### DigitalSign Brasil

[App page](https://appshunter.io/ios/app/digitalsign-brasil/id1513922985)

Digitally sign PDF documents with legal validity from anywhere, anytime. Easily transfer and use your digital certificates, and share signed documents instantly. Acquire a new digital certificate directly through the app.

**Highlights:** Digital PDF document signing, Legal validity of signatures, Cross-platform digital certificate transfer, Instant document sharing, In-app digital certificate acquisition

**In-app purchases:** none


### CarM3

[App page](https://appshunter.io/ios/app/carm3/id6755984980)

**In-app purchases:** none


## Frequently asked questions

### Is DigitalSign Brasil free?

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

### Is CarM3 free?

CarM3 is free to download, with no in-app purchases.

### Do DigitalSign Brasil or CarM3 have ads?

CarM3 shows ads; DigitalSign Brasil does not.

### Which is updated more often, DigitalSign Brasil or CarM3?

DigitalSign Brasil ships an update every 2 months, and CarM3 every 10 days. Most recently, DigitalSign Brasil was updated on October 24, 2026 and CarM3 on October 5, 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.*