# Permit Flow vs WaterMark Pool Service

The clearest difference is device support: WaterMark Pool Service at 2 against Permit Flow's —. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Permit Flow | WaterMark Pool Service |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 9 days |
| Size | 195 MB | 61 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Bakr Alruwaili](https://appshunter.io/developer/1877655832) | [PC Brain LLC](https://appshunter.io/developer/1896640969) |

## What reviewers say

### Permit Flow

[App page](https://appshunter.io/ios/app/permit-flow/id6759251459)

**In-app purchases:** none


### WaterMark Pool Service

[App page](https://appshunter.io/ios/app/watermark-pool-service/id6777882440)

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

**In-app purchases:** none


## Frequently asked questions

### Is Permit Flow free?

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

### Is WaterMark Pool Service free?

WaterMark Pool Service is free to download, with no in-app purchases.

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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.*