# RTM Smart ID vs ELM52

The clearest difference is update cadence: ELM52 at monthly against RTM Smart ID's every 10 months. RTM Smart ID's advantage is iOS requirement (13.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

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

RTM Smart ID ships an update every 10 months, ELM52 monthly. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | RTM Smart ID | ELM52 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Size | 12 MB | 8 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RTM Systems AG](https://appshunter.io/developer/1144056287) | [Sander Elektronik AG](https://appshunter.io/developer/1727711847) |

## What reviewers say

### RTM Smart ID

[App page](https://appshunter.io/ios/app/rtm-smart-id/id1524475566)

**Features:** Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


### ELM52

[App page](https://appshunter.io/ios/app/elm52/id6476772329)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RTM Smart ID free?

RTM Smart ID is free to download, with no in-app purchases.

### Is ELM52 free?

ELM52 is free to download, with no in-app purchases.

### Do RTM Smart ID or ELM52 have ads?

Neither RTM Smart ID nor ELM52 shows ads.

### Which is updated more often, RTM Smart ID or ELM52?

RTM Smart ID ships an update every 10 months, and ELM52 monthly. Most recently, RTM Smart ID was updated on October 2, 2026 and ELM52 on October 6, 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.*