eLO SFP vs trx
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
eLO SFP
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The eLO SFP app enables users to quickly and easily identify the manufacturer for which the LightOptics fiber optic module has been programmed. Simply point the camera at the barcode or enter the serial number and the app will display transceiver specifications such as part number, brief description, serial number, compatibility. The application supports only transceivers of the Lightoptics manufacturer of the following types: SFP, SFP+, SFP28, QSFP+, QSFP28, and DAC cables. Together with the LightBoard programmer, the eLO SFP application allows self-configuration of SFP, SFP+, SFP28, QSFP+, QSFP28 transceivers, and DAC cables (individually each end), to any switch manufacturer. Configuration is only 2 clicks! Simply indicate the manufacturer and click save. You can program the cartridges multiple times and reinstall them in different devices. The device runs in the โcloudโ, so it is continuously updated with new hardware versions, new interfaces, so it does not need constant updates. With the LightBoard programmer / encoder - adapt your LightOptics optical modules to work in almost any commercially available network device, - you will reduce your inventory, you can have one type of spare cartridge at a time, which you program under any manufacturer on demand. No more duplication of the same types of modules on the shelves, - at the module ordering stage, you do not need to have the exact type of equipment in which the optical module will be installed - you program it yourself before installation, - you have access to support - you can take advantage of professional service support - you have the possibility to quickly reprogram the optical modules to new devices and changing softwares You can change the vendor coding on your own- it's easy! Thanks to the LightOptics transceiver configurator: You can change compatibility of SFP SFP+ SFP28 QSFP QSFP28
trx
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trx-control is not a standalone app. It requires a trx-control(7) installation with a running trxd(8) daemon that has WebSockets enabled. The app connects to trxd(8) using a WebSockets and displays all transceivers and extensions that have been configured for client access. The trx-control app is mainly used by radio amateurs to operate transceivers and other hamradio related hardware. Please note that in order to use the callsign lookup feature, a valid QRZ.com subscription is needed.
Screenshots
Verdict
The clearest difference is update cadence: eLO SFP at every 4 months against trx's every 23 months. trx's advantage is iOS requirement (13.0 vs 15.6). 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.
eLO SFP ships an update every 4 months, trx every 23 months. The most recent releases landed on September 9, 2026 and September 7, 2026 respectively.
| Parameter | eLO SFP | trx |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months โ better | Every 23 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod, Mac โ better | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 โ better |
| Further details โ not scored | ||
| Size | 47 MB | 20 MB |
| Age rating | 17+ | 4+ |
| Developer | Fibermarkt sp. z.o.o. | micro systems |
In-app purchases
eLO SFP
No in-app purchases
trx
No in-app purchases









