Comparison

RB Link vs U

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

Head to head
About

RB Link

Control your smart home security system remotely. Arm, disarm, and receive instant notifications for peace of mind. Manage home automation and share access with family members.

Highlights
  • Arm and disarm security system
  • Instant alarm notifications
  • Manage home automation
  • Share system access with family
  • Intuitive interface design
Features
Read full description

The RB Link app brings home to the palm of your hand. Whether you're on the go or at home, controlling your smart security system has never felt so easy. The app allows you to arm and disarm your system, receive instant notifications, manage flexible home automation, share the system to your family, etc. * Beginner-friendly Intuitive Interface Design * Arming and Disarming Made Simple and Efficient with RB Link * Instant Alarm and Real-time Notification * Build Your Own Exclusive Smart Security * Energy-Efficient Living & Effortless Comfort at Your Fingertips

About

U

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U-PROX United puts your home security in your pocket. It’s a control center that keeps you instantly informed about any intrusion into your home. Arm the system if you forgot to do so before leaving. Set up home automation and control it remotely. The U-PROX security system is designed for easy at-home installation — without the need for technical specialists. The U-PROX United app allows you to install and configure U-PROX solutions quickly and correctly, providing all the necessary guidance on optimal sensor placement and fine-tuning. Among the features available to users: • full system control — arming and disarming, automation control, and more • event log viewing to understand the full timeline of an incident • complete visibility into the status of any system component — power, connectivity, battery level, and more • adding and configuring sensors as well as automation devices • organizing security groups or areas • full access control management — users, key fobs, and access rights • selecting and connecting to a security company’s services U-PROX United supports a wide range of security sensors and equipment: • perimeter breach and tilt sensors (WDC Plus, WDC Long, WDC Mini, WDC Uni, WDC Outdoor) • motion sensors with photo capture capability (PIR VB, PIR Cam, PIR Outdoor, PIR Cam Outdoor) • glass break and shock sensors (PIR Combi, WDC Uni) • smoke and flood sensors (SMOKE, WATER) • sirens, keypads, and key fobs (SIREN, SIREN Outdoor, KEYPAD G1, KEYPAD G4, BUTTON, KEYFOB 3B, KEYFOB 4B) • automation and integration equipment (VALVE, RELAY AC, RELAY DC, MULTIPLEXER, WIREPORT) • hubs and expanders (MP, MPX G, MPX L, MPX LE, EXTENDER) The U-PROX United combines the capabilities of U-PROX Home and U-PROX Installer apps, allowing technical specialists to use it as a comprehensive tool for installing, configuring, and maintaining U-PROX security solutions. Among the features available to security company technicians: • engineer’s dashboard — monitoring and locating devices with operational issues • configuration and connection to security company servers (e.g., U-PROX Console) • special and advanced settings for sensors and other equipment Contact us if you have any questions: support@u-prox.systems Visit our website: https://u-prox.systems/en Follow us on social media: https://www.linkedin.com/company/u-prox

Screenshots

RB Link4 screens
U4 screens

Verdict

The call

The clearest difference is update cadence: U at every 3 weeks against RB Link's every 2 months. RB Link's advantage is ratings volume (3 vs 1). On price, rating, ads and in-app purchases 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for RB Link against 5.0 for U. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

RB Link ships an update every 2 months, U every 3 weeks. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
RB Link versus U: the parameters behind the verdict, then further details
ParameterRB LinkU
PriceFreeFree
Rating5.0 (3 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size125 MB113 MB
Age rating4+4+
DeveloperDusun Electron Co., Ltda2softin

In-app purchases

None

RB Link

No in-app purchases

None

U

No in-app purchases

Questions

Is RB Link free?
RB Link is free to download, with no in-app purchases.
Is U free?
U is free to download, with no in-app purchases.
Which has better reviews, RB Link or U?
RB Link and U are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.
Do RB Link or U have ads?
Neither RB Link nor U shows ads.
Which is updated more often, RB Link or U?
RB Link ships an update every 2 months, and U every 3 weeks. Most recently, RB Link was updated on October 24, 2026 and U on October 30, 2026.

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