Relay Network vs WolkCentraal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Relay Network
Control multiple relay modules over the internet. Easily add, remove, and customize names for modules and individual relays for clear identification of outputs.
- Control multiple relay modules
- Internet connectivity
- Add/remove modules easily
- Custom module naming
- Custom relay naming
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This app allows you to control any number of either ETH-RLY02 or ETH-RLY16 modules (available from www.robot-electronics.co.uk) via the internet. It is easy to add or remove modules and allows you to set custom names for each module, each relay is also nameable allowing easy identification for the outputs.
WolkCentraal
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WolkCentraal is a mobile application which enables real-time data monitoring and keeping track of the devices connected to WolkAbout IoT Platform. Features: - Real-time monitoring and control of the connected devices - Data visualization - Messages and push notifications - Possibility to connect to different WolkAbout IoT Platform instances just by switching server address or scanning a QR code
Screenshots
Verdict
The clearest difference is update cadence: WolkCentraal at every 6 weeks against Relay Network's every 6 months. Relay Network's advantage is iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases and device support 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.
Relay Network ships an update every 6 months, WolkCentraal every 6 weeks. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.
| Parameter | Relay Network | WolkCentraal |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| Update frequency | Every 6 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 1 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Devantech Ltd. | WolkAbout Technology s.r.o. |
In-app purchases
Relay Network
No in-app purchases
WolkCentraal
No in-app purchases
Questions
Is Relay Network free?
Is WolkCentraal free?
Do Relay Network or WolkCentraal have ads?
Which is updated more often, Relay Network or WolkCentraal?
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