TCP ModBus vs W
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
TCP ModBus
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TCP Modbus - the application created for testing and debugging of systems supporting TCP ModBus protocol. Simulation sensors, send control commands, read data registers, and others. - Operation as a server or a client; - supports two modes slave and master; - reading and writing data register; - storage of the last session of the data; - storage connection settings; - support decrypting of incoming message.
W
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The W-Modbus app has arrived! Upgrade firmware for LumenRadio W-Modbus devices by connecting to and upgrading the LumenRadio Gateway in the network through the app. In the Network map you will find a system overview where you can see signal strength, edit names of wireless nodes as well as seeing the health of the RS485 bus including which Modbus RTU address that is connected to that wireless node. You can also connect to any node in the network and change their name (up to 20 characters). The W-Modbus app requires W-Modbus firmware 3.1.1 and above, which can be downloaded from the LumenRadio support webpage. Note that you need to install FW 3.1.1 or above on the gateway from the nRF connect app to enable the functionality. It is also required to have at least 3.0.0 or above on all nodes in the network. You will need to update all nodes individually if they are on version 2.2.3. This will be the last time this is required. All future updates can be done by either this app or from the nRF connect app.
Screenshots
Verdict
The clearest difference is update cadence: TCP ModBus at every 4 days against W's every 2 months. TCP ModBus also leads on iOS requirement (8.0 vs 15). 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.
TCP ModBus ships an update every 4 days, W every 2 months. The most recent releases landed on September 27, 2026 and September 24, 2026 respectively.
| Parameter | TCP ModBus | W |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days โ better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 โ better | 15 |
| Further details โ not scored | ||
| Size | 1 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | ะขะะฃ | LumenRadio AB |
In-app purchases
TCP ModBus
No in-app purchases
W
No in-app purchases








