Comparison

XADrelay vs TrackerKing Pro

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

Head to head

★ 5.01 ratingsView app →

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.

About

TrackerKing Pro

Easily track vehicles, employees, children, and assets in real-time. Receive alerts for ignition status, over-speeding, and more. Features include history playback, engine immobilization, and anti-theft parking mode.

Highlights

Real-time live tracking with traffic updates
Ignition status alerts
History playback
Engine immobilizer
Anti-theft parking mode
Geo-fencing
Over-speed alerts

Features

Read full description

TrackerKing Pro APP helps you to track your vehicle, employee, kids, assets in a very easy way. Our App Features: Real-Time Live Vehicle Tracking with Traffic Updates. Ignition On-OFF Status Alerts & Notifications. History PlayBack Engine Immobilizer Location Sharing Anti-Theft Parking Mode Geo-Fence Over-Speed Alerts. Parking Vehicle Finder. 90 Days History Download. Unlimited App Notifications & Alerts.

Screenshots

XADrelay3 screens

TrackerKing Pro3 screens

Verdict

The call

The clearest difference is ads: XADrelay at none against TrackerKing Pro's shown. XADrelay also leads on update cadence (every 9 days vs every 5 weeks). On price, in-app purchases, device support and iOS requirement 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

XADrelay ships an update every 9 days, TrackerKing Pro every 5 weeks. The most recent releases landed on September 27, 2026 and October 2, 2026 respectively.

Scorecard2 real differences · 7 level

XADrelay versus TrackerKing Pro: the parameters behind the verdict, then further details
Parameter	XADrelay	TrackerKing Pro
Price	Free	Free
Rating	—	5.0 (1 ratings) — better
Number of ratings	—	1 — better
Update frequency	Every 9 days — better	Every 5 weeks
Ads	No — better	Yes
In-app purchases	No	No
Monetization	—	Ad-supported
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	14	13.0 — better
Further details — not scored
Size	17 MB	97 MB
Age rating	4+	4+
Developer	俊武冯	浩江

In-app purchases

None

XADrelay

No in-app purchases

None

TrackerKing Pro

No in-app purchases

Questions

Is XADrelay free?

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

Is TrackerKing Pro free?

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

Do XADrelay or TrackerKing Pro have ads?

TrackerKing Pro shows ads; XADrelay does not.

Which is updated more often, XADrelay or TrackerKing Pro?

XADrelay ships an update every 9 days, and TrackerKing Pro every 5 weeks. Most recently, XADrelay was updated on September 27, 2026 and TrackerKing Pro on October 2, 2026.