# Seyforum vs PRO.4 DOD

The clearest difference is update cadence: PRO.4 DOD at every 3 weeks against Seyforum's every 5 months. PRO.4 DOD also leads on device support. Seyforum's advantage is iOS requirement (11.0 vs 16.4). On price and in-app purchases there is nothing between them.

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

Seyforum ships an update every 5 months, PRO.4 DOD every 3 weeks. The most recent releases landed on September 13, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Seyforum | PRO.4 DOD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 61 MB | 46 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | — | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Seyfor d.o.o.](https://appshunter.io/developer/1276162369) | [Pro-Bit PRO.4 d.o.o.](https://appshunter.io/developer/1071235078) |

## What reviewers say

### Seyforum

[App page](https://appshunter.io/ios/app/seyforum/id6468772435)

**In-app purchases:** none


### PRO.4 DOD

[App page](https://appshunter.io/ios/app/pro4-dod/id6751571923)

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

**In-app purchases:** none


## Frequently asked questions

### Is Seyforum free?

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

### Is PRO.4 DOD free?

PRO.4 DOD is free to download, with no in-app purchases.

### Which is updated more often, Seyforum or PRO.4 DOD?

Seyforum ships an update every 5 months, and PRO.4 DOD every 3 weeks. Most recently, Seyforum was updated on September 13, 2026 and PRO.4 DOD on September 24, 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.*