# Seifr vs Sogool

The clearest difference is ads: Seifr at none against Sogool's shown. Sogool's advantage is update cadence (weekly vs every 4 months). On price, in-app purchases, device support 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.

Seifr ships an update every 4 months, Sogool weekly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Seifr | Sogool |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Weekly** |
| Size | 74 MB | 56 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [BIOKODA doo](https://appshunter.io/developer/405318675) | [BYUNGHEE GONG](https://appshunter.io/developer/1896547904) |

## What reviewers say

### Seifr

[App page](https://appshunter.io/ios/app/seifr/id6758987591)

**In-app purchases:** none


### Sogool

[App page](https://appshunter.io/ios/app/sogool-secure-messenger/id6768185122)

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is Seifr free?

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

### Is Sogool free?

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

### Do Seifr or Sogool have ads?

Sogool shows ads; Seifr does not.

### Which is updated more often, Seifr or Sogool?

Seifr ships an update every 4 months, and Sogool weekly. Most recently, Seifr was updated on October 25, 2026 and Sogool on October 31, 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.*