# RJ Eletropostos vs Ser

The clearest difference is update cadence: RJ Eletropostos at every 3 weeks against Ser's every 2 months. Ser's advantage is iOS requirement (13.0 vs 15.6). 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.

RJ Eletropostos ships an update every 3 weeks, Ser every 2 months. The most recent releases landed on October 8, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | RJ Eletropostos | Ser |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 105 MB | 67 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [SINDESTADO - RJ ELETROPOSTOS](https://appshunter.io/developer/1773275188) | [ECONDOS SISTEMAS LTDA - ME](https://appshunter.io/developer/1144142573) |

## What reviewers say

### RJ Eletropostos

[App page](https://appshunter.io/ios/app/rj-eletropostos/id6736761751)

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

**In-app purchases:** none


### Ser

[App page](https://appshunter.io/ios/app/ser-tel/id6758223057)

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

**In-app purchases:** none


## Frequently asked questions

### Is RJ Eletropostos free?

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

### Is Ser free?

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

### Do RJ Eletropostos or Ser have ads?

Neither RJ Eletropostos nor Ser shows ads.

### Which is updated more often, RJ Eletropostos or Ser?

RJ Eletropostos ships an update every 3 weeks, and Ser every 2 months. Most recently, RJ Eletropostos was updated on October 8, 2026 and Ser on October 17, 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.*