# Robbins Watson vs Holmac Strata

The clearest difference is update cadence: Holmac Strata at every 5 weeks against Robbins Watson's every 22 months. 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.

Robbins Watson ships an update every 22 months, Holmac Strata every 5 weeks. The most recent releases landed on September 9, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Robbins Watson | Holmac Strata |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 5 weeks** |
| Size | 44 MB | 42 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [S.D POWELL & M.A WOODFIELD](https://appshunter.io/developer/1728414954) | [UNIVERSAL WORKFLOW TECHNOLOGIES PTY LTD](https://appshunter.io/developer/1737413192) |

## What reviewers say

### Robbins Watson

[App page](https://appshunter.io/ios/app/robbins-watson/id6476969726)

**Features:** macOS Compatibility

**In-app purchases:** none


### Holmac Strata

[App page](https://appshunter.io/ios/app/holmac-strata/id6756297463)

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

**In-app purchases:** none


## Frequently asked questions

### Is Robbins Watson free?

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

### Is Holmac Strata free?

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

### Do Robbins Watson or Holmac Strata have ads?

Neither Robbins Watson nor Holmac Strata shows ads.

### Which is updated more often, Robbins Watson or Holmac Strata?

Robbins Watson ships an update every 22 months, and Holmac Strata every 5 weeks. Most recently, Robbins Watson was updated on September 9, 2026 and Holmac Strata on September 12, 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.*