# STJ60 vs OctetLab

The clearest difference is in-app purchases: STJ60 at none against OctetLab's 1. STJ60 also leads on iOS requirement (13.0 vs 26.0). On price there is nothing between them.

Both are free to download. OctetLab sells 1 one-off in-app purchase. STJ60 asks for nothing beyond the download.

## The numbers

| Metric | STJ60 | OctetLab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Size | 15 MB | 1 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | — | **iPhone** |
| Age rating | 17+ | 4+ |
| Developer | [亚男 杨](https://appshunter.io/developer/1485381560) | [永 张](https://appshunter.io/developer/1806535769) |

## What reviewers say

### STJ60

[App page](https://appshunter.io/ios/app/stj60/id6477338242)

**In-app purchases:** none


### OctetLab

[App page](https://appshunter.io/ios/app/octetlab-subnet-calculator/id6791678289)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SubnetMaskCalculator Pro | $4.99 | one-time |


## Frequently asked questions

### Is STJ60 free?

STJ60 is free to download, with no in-app purchases.

### Is OctetLab free?

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

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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.*