Comparison

UUUSIM vs 4Star Track

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

Head to head

UUUSIM

Free

🔧 Utilities

★ 2.117 ratingsView app →

Live GPS Tracking

About

UUUSIM

This app utilizes Bluetooth to enable your device to send and receive text messages, make phone calls, and access the internet. It leverages Bluetooth technology for seamless connectivity and functionality.

Highlights

Send and receive text messages via Bluetooth
Make phone calls through Bluetooth
Access 4G internet using Bluetooth
Utilizes Bluetooth standard protocol

Features

Read full description

UUU SIM is a Bluetooth standard protocol software that communicates with devices through a mobile phone's Bluetooth connection. You can use the app software to make phone calls and send and receive text messages through the SIM card on the device. UUU SIM devices also provide hotspot connections.

About

4Star Track

Features

Read full description

Real-time GPS tracking made simple. 4StartTrack offers live updates, historical route data, and instant alerts so you can keep an eye on your vehicles and devices 24/7.

Screenshots

UUUSIM4 screens

4Star Track4 screens

Verdict

The call

The clearest difference is update cadence: UUUSIM at every 2 weeks against 4Star Track's every 2 months. 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

UUUSIM ships an update every 2 weeks, 4Star Track every 2 months. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level

UUUSIM versus 4Star Track: the parameters behind the verdict, then further details
Parameter	UUUSIM	4Star Track
Price	Free	Free
Rating	2.1 (17 ratings) — better	—
Positive reviews	33.3% of reviews	—
Number of ratings	17 — better	—
Update frequency	Every 2 weeks — better	Every 2 months
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	15.6	15.6
Further details — not scored
Size	8 MB	59 MB
Age rating	4+	4+
Developer	卫英梁	Aamir Rasool

In-app purchases

None

UUUSIM

No in-app purchases

None

4Star Track

No in-app purchases

Questions

Is UUUSIM free?

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

Is 4Star Track free?

4Star Track is free to download, with no in-app purchases.

Do UUUSIM or 4Star Track have ads?

Neither UUUSIM nor 4Star Track shows ads.

Which is updated more often, UUUSIM or 4Star Track?

UUUSIM ships an update every 2 weeks, and 4Star Track every 2 months. Most recently, UUUSIM was updated on November 4, 2026 and 4Star Track on October 31, 2026.