Comparison

16 Relay Controller vs XADrelay

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

About

16 Relay Controller

Features

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App to control henry solutions 16 Relay hardware devices. The 16 Relay controller connects to an IOT device via web service calls. The webservice endpoints you connect to is determined by the application settings. The default IP address of the webservice for the relay controller is set to a non-routable IP address of 192.168.4.2. The app only uses http and not https so it is only suitable for controlling IOT devices in a closed environment. The 16 Relay controller is limited to sending only the following URL request to the IP address you enter in the settings: http://[ip-address]/status http://[ip-address]/status/[relay-number] http://[ip-address]/on/[relay-number] http://[ip-address]/off/[relay-number] http://[ip-address]/allon http://[ip-address]/alloff http://[ip-address]/hb

About

XADrelay

Features

Read full description

The app can connect with XAD Bluetooth relay modules. This allows you to control a Bluetooth relay module to turn them on and off with just one app.

Screenshots

16 Relay Controller3 screens

XADrelay3 screens

Verdict

The call

The clearest difference is update cadence: XADrelay at every 9 days against 16 Relay Controller's every 34 months. XADrelay also leads on iOS requirement (14 vs 18.6). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

16 Relay Controller ships an update every 34 months, XADrelay every 9 days. The most recent releases landed on October 6, 2026 and September 27, 2026 respectively.

Scorecard2 real differences · 4 level

16 Relay Controller versus XADrelay: the parameters behind the verdict, then further details
Parameter	16 Relay Controller	XADrelay
Price	Free	Free
Update frequency	Every 34 months	Every 9 days — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad	iPhone, iPod
Requires iOS	18.6	14 — better
Further details — not scored
Size	0 MB	17 MB
Age rating	4+	4+
Developer	Mike Henry	俊武冯

In-app purchases

None

16 Relay Controller

No in-app purchases

None

XADrelay

No in-app purchases

Questions

Is 16 Relay Controller free?

16 Relay Controller is free to download, with no in-app purchases.

Is XADrelay free?

XADrelay is free to download, with no in-app purchases.

Do 16 Relay Controller or XADrelay have ads?

Neither 16 Relay Controller nor XADrelay shows ads.

Which is updated more often, 16 Relay Controller or XADrelay?

16 Relay Controller ships an update every 34 months, and XADrelay every 9 days. Most recently, 16 Relay Controller was updated on October 6, 2026 and XADrelay on September 27, 2026.