# Mark II vs 3SR Service

The clearest difference is update cadence: 3SR Service at every 2 days against Mark II's every 2 weeks. 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.

Mark II ships an update every 2 weeks, 3SR Service every 2 days. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Mark II | 3SR Service |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mark-ii/id6482589834/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 411 MB | 30 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Arkmeds](https://appshunter.io/developer/1560864096) | [Ricardo Cunha](https://appshunter.io/developer/6811573676) |

## What reviewers say

### Mark II

[App page](https://appshunter.io/ios/app/mark-ii/id6482589834)

This business management app streamlines asset management with calibration, inventory, and equipment analysis. It features AI-powered insights for agile decision-making and real-time asset information, allowing for offline operation and efficient service order execution.

**Highlights:** Asset management, Calibration, Inventory, Equipment analysis, AI-powered insights, Offline functionality, Service order execution

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

**In-app purchases:** none


### 3SR Service

[App page](https://appshunter.io/ios/app/3sr-service/id6811573674)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mark II free?

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

### Is 3SR Service free?

3SR Service is free to download, with no in-app purchases.

### Do Mark II or 3SR Service have ads?

Neither Mark II nor 3SR Service shows ads.

### Which is updated more often, Mark II or 3SR Service?

Mark II ships an update every 2 weeks, and 3SR Service every 2 days. Most recently, Mark II was updated on October 8, 2026 and 3SR Service on October 15, 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.*