Comparison

Smrtome Bell vs KKM UWB

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

Head to head

About

Smrtome Bell

Features

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Wifi video doorbell When visitors trigger the doorbell, it will push fast notification, do not miss any visitors. Intelligent night vision, it can see clearly the perfect image in the daytime and night. PIR motion detection, ensure the security of your home. Remote monitoring, wake up the doorbell by APP, monitor at any time and anywhere. Battery powered with long standby time, wire-free, easy to install.

About

KKM UWB

Features

Read full description

KKM UWB is the companion application for the UWB beacon manufacture by KKM. Through this app, you can use some functions of UWB beacon, such as UWB Ranging and topology display. You can use this app to evaluate the performance of UWB beacons, such as ranging accuracy, Bluetooth connection distance, UWB distance, etc.

Screenshots

Smrtome Bell3 screens

KKM UWB4 screens

Verdict

The call

The clearest difference is update cadence: KKM UWB at every 5 weeks against Smrtome Bell's every 8 months. Smrtome Bell's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 16.0). On price, 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.

UpkeepUpdate frequency

Smrtome Bell ships an update every 8 months, KKM UWB every 5 weeks. The most recent releases landed on October 26, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 3 level

Smrtome Bell versus KKM UWB: the parameters behind the verdict, then further details
Parameter	Smrtome Bell	KKM UWB
Price	Free	Free
Update frequency	Every 8 months	Every 5 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone
Requires iOS	9.0 — better	16.0
Further details — not scored
Size	48 MB	5 MB
Age rating	4+	4+
Developer	孟初禹	KKM Co.,Ltd.

In-app purchases

None

Smrtome Bell

No in-app purchases

None

KKM UWB

No in-app purchases

Questions

Is Smrtome Bell free?

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

Is KKM UWB free?

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

Do Smrtome Bell or KKM UWB have ads?

Neither Smrtome Bell nor KKM UWB shows ads.

Which is updated more often, Smrtome Bell or KKM UWB?

Smrtome Bell ships an update every 8 months, and KKM UWB every 5 weeks. Most recently, Smrtome Bell was updated on October 26, 2026 and KKM UWB on November 4, 2026.