# Pay Note App vs Sirius MX

The clearest difference is iOS requirement: Pay Note App at 13.0 against Sirius MX's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Pay Note App ships an update every 4 months, Sirius MX every 2 months. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Pay Note App | Sirius MX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Size | 41 MB | 69 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 17+ |
| Developer | [Noch Phanet](https://appshunter.io/developer/1574125586) | [ProximaX](https://appshunter.io/developer/1415635523) |

## What reviewers say

### Pay Note App

[App page](https://appshunter.io/ios/app/pay-note-app/id6504160121)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sirius MX

[App page](https://appshunter.io/ios/app/sirius-mx/id6746712224)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pay Note App free?

Pay Note App is free to download, with no in-app purchases.

### Is Sirius MX free?

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

### Do Pay Note App or Sirius MX have ads?

Neither Pay Note App nor Sirius MX shows ads.

### Which is updated more often, Pay Note App or Sirius MX?

Pay Note App ships an update every 4 months, and Sirius MX every 2 months. Most recently, Pay Note App was updated on October 3, 2026 and Sirius MX on October 8, 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.*