# PRO.4 PND vs Tech Heritage

The clearest difference is update cadence: Tech Heritage at every 4 days against PRO.4 PND's every 2 months. Tech Heritage also leads on iOS requirement (12.0 vs 15.1). 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.

PRO.4 PND ships an update every 2 months, Tech Heritage every 4 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PRO.4 PND | Tech Heritage |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 43 MB | 57 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pro-Bit PRO.4 d.o.o.](https://appshunter.io/developer/1071235078) | [Youssef Alrakkib](https://appshunter.io/developer/1752023831) |

## What reviewers say

### PRO.4 PND

[App page](https://appshunter.io/ios/app/pro4-pnd/id1382659387)

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

**In-app purchases:** none


### Tech Heritage

[App page](https://appshunter.io/ios/app/tech-heritage/id6736628063)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PRO.4 PND free?

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

### Is Tech Heritage free?

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

### Do PRO.4 PND or Tech Heritage have ads?

Neither PRO.4 PND nor Tech Heritage shows ads.

### Which is updated more often, PRO.4 PND or Tech Heritage?

PRO.4 PND ships an update every 2 months, and Tech Heritage every 4 days. Most recently, PRO.4 PND was updated on October 26, 2026 and Tech Heritage on October 25, 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.*