TEMS™ OnDevice vs ROMES Probe
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TEMS™ OnDevice
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When used together with your TEMS Investigation or TEMS Paragon PC software, the TEMS Ondevice app can test true user experience in high-speed data networks like 5G and LTE-A. The app itself will initiate data service testing on your iPhone. Tests can be issued either manually in the app or remotely via your TEMS software for automated testing. These tests are often performed while moving to test different network conditions so accurate location is needed. These tests are also performed to test from a user perspective, which many times involves network traffic during an ongoing phone call, which requires the TEMS Ondevice app to have persistent location. However location updates are only activated while a test is active. As soon as the test is done, the TEMS Ondevice app will stop the location updates. The supported services are: • HTTP GET / POST for file transfers • HTTP Get for web browsing • Ping • iPerf UL/DL for TCP or UDP TEMS Investigation and TEMS Paragon are licensed* 'PC-based' tools developed for measuring the performance and quality of wireless networks. TEMS tools are used for network deployment, troubleshooting, optimization and site verification. If you have any questions regarding TEMS tools or the TEMS Ondevice app, please contact Infovista support or your local sales representative. * The ‘PC-based’ tools and licenses required can be obtained from InfoVista.
ROMES Probe
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ROMES Probe connects to ROMES for on device testing. Currently the following tests are supported: Voice Call, HTTP Down- and upload, Ping, iPerf and GPS Logging
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | TEMS™ OnDevice | ROMES Probe |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 9 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | InfoVista | Rohde & Schwarz GmbH & Co. KG |
In-app purchases
TEMS™ OnDevice
No in-app purchases
ROMES Probe
No in-app purchases









