# BLE Simulator GATT vs OctetLab

The clearest difference is in-app purchases: BLE Simulator GATT at none against OctetLab's 1. BLE Simulator GATT also leads on iOS requirement (17.6 vs 26.0). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | BLE Simulator GATT | OctetLab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Size | 1 MB | 1 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eastesh](https://appshunter.io/developer/1771219974) | [永 张](https://appshunter.io/developer/1806535769) |

## What reviewers say

### BLE Simulator GATT

[App page](https://appshunter.io/ios/app/ble-simulator-gatt/id6786655501)

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

**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 BLE Simulator GATT free?

BLE Simulator GATT is free to download, with no in-app purchases.

### Is OctetLab free?

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

### Do BLE Simulator GATT or OctetLab have ads?

Neither BLE Simulator GATT nor OctetLab shows ads.

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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.*