# Sistema Zelo vs Loggin

The clearest difference is update cadence: Loggin at fortnightly against Sistema Zelo's every 22 months. Loggin also leads on device support. On price, in-app purchases and iOS requirement there is nothing between them.

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

Sistema Zelo ships an update every 22 months, Loggin fortnightly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Sistema Zelo | Loggin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 22 months | **Fortnightly** |
| Size | 1 MB | 97 MB |
| Requires iOS | 15.6 | **14.0.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Gilberto Vieira da Silva](https://appshunter.io/developer/1291421859) | [Medical San](https://appshunter.io/developer/1834194178) |

## What reviewers say

### Sistema Zelo

[App page](https://appshunter.io/ios/app/sistema-zelo/id1291421860)

**In-app purchases:** none


### Loggin

[App page](https://appshunter.io/ios/app/loggin/id6743442679)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sistema Zelo free?

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

### Is Loggin free?

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

### Which is updated more often, Sistema Zelo or Loggin?

Sistema Zelo ships an update every 22 months, and Loggin fortnightly. Most recently, Sistema Zelo was updated on October 24, 2026 and Loggin on October 28, 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.*