# PX vs MDA931

The clearest difference is iOS requirement: PX at 9.0 against MDA931's 12.0. 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.

PX ships an update monthly, MDA931 every 2 months. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | PX | MDA931 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 26 MB | 4 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zhuhai HiVi Technology Co.,Ltd](https://appshunter.io/developer/1352619575) | [杏生 卢](https://appshunter.io/developer/1094592555) |

## What reviewers say

### PX

[App page](https://appshunter.io/ios/app/px-608/id1352624086)

**Features:** macOS Compatibility

**In-app purchases:** none


### MDA931

[App page](https://appshunter.io/ios/app/mda931/id6470818095)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PX free?

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

### Is MDA931 free?

MDA931 is free to download, with no in-app purchases.

### Do PX or MDA931 have ads?

Neither PX nor MDA931 shows ads.

### Which is updated more often, PX or MDA931?

PX ships an update monthly, and MDA931 every 2 months. Most recently, PX was updated on September 17, 2026 and MDA931 on September 10, 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.*