# SIDM vs eRDPMS

The clearest difference is device support: SIDM at 2 against eRDPMS's —. SIDM also leads on iOS requirement (9.0 vs 17.0). On price 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.

## The numbers

| Metric | SIDM | eRDPMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Weekly | — |
| Size | 68 MB | 23 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 12+ | 4+ |
| Developer | [Confederation of Indian Industry (CII)](https://appshunter.io/developer/835573828) | [Efftronics Systems Private limited](https://appshunter.io/developer/874852956) |

## What reviewers say

### SIDM

[App page](https://appshunter.io/ios/app/sidm/id1506379689)

**In-app purchases:** none


### eRDPMS

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

**In-app purchases:** none


## Frequently asked questions

### Is SIDM free?

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

### Is eRDPMS free?

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

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*