SRF Diagnosis vs XDiscovery
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
SRF Diagnosis
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The SRF (Safety RFID) is a non-contact safety sensor, that monitors moveable safety guards, such as doors, flaps and hoods. The system provides a multitude of diagnostic data of each sensor, even in a series connection, to support smart production. With this app, the diagnostic data could be displayed via NFC technology on a smartphone comfortable, quickly and easily.
XDiscovery
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XDiscovery finds the devices around your iPhone. The All tab searches Bluetooth and the local network together. Type in the search field to narrow the list. Bluetooth rows show the device name, signal bars, and the reading in dBm. Wi-Fi rows show the device name, its address, and the Bonjour service. The Bluetooth tab lists nearby Bluetooth devices. Named devices and the full count are shown at the top. Unnamed devices can be shown or hidden. Open a device to see a live ten-bar signal meter and the services and values it exposes, including battery level when the device provides it. The Wi-Fi tab browses Bonjour services on the local network. Pick a service type, then a device, to see its address and the details it advertises. Groups keeps the devices you care about. My Devices is ready to use, and you can add more groups. Add a device from its row or from its detail screen. While a saved device is nearby, its row is highlighted. Bluetooth devices in a group show live signal strength. XDiscovery only looks. It does not pair with devices, change their settings, or send commands. Groups stay on this iPhone.
Screenshots
Verdict
The clearest difference is update cadence: SRF Diagnosis at every 3 months against XDiscovery's every 30 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SRF Diagnosis ships an update every 3 months, XDiscovery every 30 months. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.
| Parameter | SRF Diagnosis | XDiscovery |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months โ better | Every 30 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14.0 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | BERNSTEIN AG | Taehyuk Kwon |
In-app purchases
SRF Diagnosis
No in-app purchases
XDiscovery
No in-app purchases









