# TEMS™ OnDevice vs ROMES Probe

The clearest difference is iOS requirement: TEMS™ OnDevice at 14.0 against ROMES Probe's 16.0. 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.

TEMS™ OnDevice ships an update every 6 months, ROMES Probe every 4 months. The most recent releases landed on October 6, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | TEMS™ OnDevice | ROMES Probe |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Size | 9 MB | 1 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [InfoVista](https://appshunter.io/developer/417612552) | [Rohde & Schwarz GmbH & Co. KG](https://appshunter.io/developer/364229795) |

## What reviewers say

### TEMS™ OnDevice

[App page](https://appshunter.io/ios/app/tems-ondevice/id1548649639)

**Features:** macOS Compatibility

**In-app purchases:** none


### ROMES Probe

[App page](https://appshunter.io/ios/app/romes-probe/id6445962802)

**In-app purchases:** none


## Frequently asked questions

### Is TEMS™ OnDevice free?

TEMS™ OnDevice is free to download, with no in-app purchases.

### Is ROMES Probe free?

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

### Do TEMS™ OnDevice or ROMES Probe have ads?

Neither TEMS™ OnDevice nor ROMES Probe shows ads.

### Which is updated more often, TEMS™ OnDevice or ROMES Probe?

TEMS™ OnDevice ships an update every 6 months, and ROMES Probe every 4 months. Most recently, TEMS™ OnDevice was updated on October 6, 2026 and ROMES Probe on October 19, 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.*