# Chain Slings vs RigMaster

The clearest difference is in-app purchases: Chain Slings at none against RigMaster's 4. Chain Slings also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. RigMaster sells 4 in-app purchases, starting at $0.99 per 7 days. Chain Slings asks for nothing beyond the download.

## The numbers

| Metric | Chain Slings | RigMaster |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 11 days |
| Size | 21 MB | 5 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [pewag UK Ltd](https://appshunter.io/developer/1801770348) | [Grima Hdez](https://appshunter.io/developer/1741481582) |

## What reviewers say

### Chain Slings

[App page](https://appshunter.io/ios/app/chain-slings/id6743173354)

**Features:** macOS Compatibility

**In-app purchases:** none


### RigMaster

[App page](https://appshunter.io/ios/app/rigmaster-rigging-calculator/id6789944360)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $0.99 | per 7 days |
| RigMaster Pro Monthly | $2.99 | per month |
| Pro Yearly | $19.99 | per year |
| RigMaster Pro | $39.99 | one-time |


## Frequently asked questions

### Is Chain Slings free?

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

### Is RigMaster free?

RigMaster is free to download, with in-app purchases available.

### Do Chain Slings or RigMaster have ads?

RigMaster shows ads; Chain Slings does not.

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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.*