# SerproID vs Rentbrella

The clearest difference is rating: SerproID at 4.8 against Rentbrella's 4.4. SerproID also leads on ratings volume (180 vs 56). Rentbrella's advantage is iOS requirement (12.0 vs 15.6). On price, review sentiment, update cadence and ads there is nothing between them.

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

SerproID holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 180 and 56 respectively. Written reviews split almost evenly too, at 48% and 48% positive.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | SerproID | Rentbrella |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (180 ratings)](https://appshunter.io/ios/app/serproid/id1218969864/reviews)** | [4.4 (56 ratings)](https://appshunter.io/ios/app/rentbrella/id1222096690/reviews) |
| Number of ratings | **180** | 56 |
| Positive reviews | **48.3% of reviews** | 48.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 16 MB | 59 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | +4 | 4+ |
| Developer | [Servico Federal de Processamento de Dados (SERPRO)](https://appshunter.io/developer/529883044) | [Rentbrella S.A.](https://appshunter.io/developer/1222096689) |

## What reviewers say

### SerproID

[App page](https://appshunter.io/ios/app/serproid/id1218969864)

Utilize certificados digitais ICP-Brasil em dispositivos móveis com segurança e alta disponibilidade. Autentique-se e assine documentos eletrônicos com validade jurídica de qualquer lugar, sem a necessidade de dispositivos físicos.

**Highlights:** Mobile ICP-Brasil digital certificate use, Electronic authentication, Digital signatures, Action history tracking, Device and station management

**In-app purchases:** none


### Rentbrella

[App page](https://appshunter.io/ios/app/rentbrella/id1222096690)

Rent an umbrella from convenient stations to protect yourself from unexpected rain or sun. Simply find a station on the map, rent an umbrella via the app, and return it to any other station.

**Highlights:** Find nearby umbrella stations, Rent umbrellas via QR code, Durable, reinforced umbrellas, Return umbrellas to any station, Hydrophobic fabric technology

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SerproID free?

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

### Is Rentbrella free?

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

### Which has better reviews, SerproID or Rentbrella?

SerproID is rated higher. SerproID averages 4.8 out of 5 from 180 ratings, while Rentbrella averages 4.4 from 56 ratings.

### Do SerproID or Rentbrella have ads?

Neither SerproID nor Rentbrella shows ads.

### Which is updated more often, SerproID or Rentbrella?

SerproID ships an update every 2 months, and Rentbrella every 2 months. Most recently, SerproID was updated on September 21, 2026 and Rentbrella on September 22, 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.*