# MMI One vs eRDPMS

The clearest difference is iOS requirement: MMI One at 15.6 against eRDPMS's 17.0. 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.

MMI One ships an update every 5 days, eRDPMS every 9 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | MMI One | eRDPMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 9 days |
| Size | 59 MB | 23 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [MESSE MUENCHEN INDIA PRIVATE LIMITED](https://appshunter.io/developer/1766549931) | [Efftronics Systems Pvt. Ltd.](https://appshunter.io/developer/874852956) |

## What reviewers say

### MMI One

[App page](https://appshunter.io/ios/app/mmi-one/id6738931650)

**Features:** macOS Compatibility

**In-app purchases:** none


### eRDPMS

[App page](https://appshunter.io/ios/app/erdpms/id6812354427)

**In-app purchases:** none


## Frequently asked questions

### Is MMI One free?

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

### Is eRDPMS free?

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

### Do MMI One or eRDPMS have ads?

Neither MMI One nor eRDPMS shows ads.

### Which is updated more often, MMI One or eRDPMS?

MMI One ships an update every 5 days, and eRDPMS every 9 days. Most recently, MMI One was updated on October 28, 2026 and eRDPMS on October 31, 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.*