# Prolon Focus vs OPENSTAT by Strato

The clearest difference is ads: OPENSTAT by Strato at none against Prolon Focus's shown. Prolon Focus's advantage is update cadence (fortnightly vs every 2 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.

Prolon Focus ships an update fortnightly, OPENSTAT by Strato every 2 months. Both last shipped on October 6, 2026.

## The numbers

| Metric | Prolon Focus | OPENSTAT by Strato |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (85 ratings)](https://appshunter.io/ios/app/prolon-focus/id1050748696/reviews)** | — |
| Number of ratings | **85** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 48 MB | 8 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Prolon Inc](https://appshunter.io/developer/1050748695) | [Strato Automation](https://appshunter.io/developer/1847965330) |

## What reviewers say

### Prolon Focus

[App page](https://appshunter.io/ios/app/prolon-focus/id1050748696)

This app offers a graphical interface for visualizing and configuring Prolon zoning systems. It supports cloud storage for projects, allowing sharing and note attachment. Snapshots can also be created and transferred between users.

**Highlights:** Visualize Prolon zoning systems, Configure Prolon zoning systems, Graphical user interface, Cloud storage for projects, Share projects with users, Attach project notes, Create and copy snapshots

**Features:** macOS Compatibility

**In-app purchases:** none


### OPENSTAT by Strato

[App page](https://appshunter.io/ios/app/openstat-by-strato/id6769481012)

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

**In-app purchases:** none


## Frequently asked questions

### Is Prolon Focus free?

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

### Is OPENSTAT by Strato free?

OPENSTAT by Strato is free to download, with no in-app purchases.

### Do Prolon Focus or OPENSTAT by Strato have ads?

Prolon Focus shows ads; OPENSTAT by Strato does not.

### Which is updated more often, Prolon Focus or OPENSTAT by Strato?

Prolon Focus ships an update fortnightly, and OPENSTAT by Strato every 2 months. Most recently, Prolon Focus was updated on October 6, 2026 and OPENSTAT by Strato on October 6, 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.*