Comparison

Decora Digital Dimmer & Timer vs ZSmart

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

Head to head
About

Decora Digital Dimmer & Timer

Control your lights with Bluetooth. Adjust brightness, set timers, and schedule events for convenience and security. Features include smooth dimming control, energy saving modes, and automatic sunset/sunrise scheduling.

Highlights
  • Bluetooth light control
  • Adjustable dimming
  • On-screen dimming bar
  • Set internal timer
  • Schedule timed events
  • Energy saving mode
  • Sunset/sunrise scheduling
Read full description

The smart way to control lights! Switch on/off, control dimming and set the internal timer all with your Bluetooth connectivity. Now it’s easier than ever to manage dimming for precise light level every time. The on screen dimming bar gives you smooth, fingertip control for full range dimming with adjustable fade rates. You can also select energy saving mode and set minimum light levels for added convenience. Timed Events with Ease Schedule your lights to turn ON and OFF automatically for safety and convenience so you never come home to a dark house again. This app offers the flexibility to program daily timed events for weekdays, weekends or any day - even while you are away - giving your home a “lived-in” look for added security and peace of mind. For carefree living, the Decora® Dimmer and Timer features an astronomical clock that uses your mobile device’s location service to define the dimmer’s longitude and latitude. This enables the handy “on at sunset and off at sunrise” feature to automatically adjust daily to your local time so lights are always in sync with nature. The Decora Bluetooth Dimmer and Timer is designed to work with your choice of compatible dimmable CFLs, dimmable LEDs, incandescent or halogen bulbs.

About

ZSmart

Control and manage your ZKTeco smart home devices from a single app. Monitor security cameras, locks, and alarms, and automate lighting and plugs with voice commands via compatible smart assistants.

Highlights
  • Remote lock and unlock management
  • Real-time security camera viewing
  • See and speak to visitors via video doorbell
  • Smart alarm system control
  • Adjustable smart bulb brightness and color
  • Automated smart plug scheduling
  • Voice control with Amazon Echo/Google Nest
Features
Read full description

ZKTeco's smart home security system is an all-in-one IoT solution for the end users. Benefited from this smart and powerful system, we could enjoy a seamless experience with various smart home devices in one mobile App -- ZSmart. More importantly, when paired with a compatible Amazon Echo or Google Nest device, you can enjoy full hands-free control with voice commands. With ZSmart App, you can manage and control all the products in one App: - Smart Door Lock: Unlock and manage the lock from anywhere - Security Camera: View surveillance videos in real time - Video Doorbell: See & speak to visitors from anywhere - Alarm System: Protect the house with smart alarm system - Smart Bulb: Change the brightness or color as need - Smart Plug: Turn on or off automatically at a specific schedule - Smart Light Switch: Switch on or off anytime, anywhere

Screenshots

Decora Digital Dimmer & Timer4 screens
ZSmart4 screens

Verdict

The call

The clearest difference is rating: ZSmart at 4.4 against Decora Digital Dimmer & Timer's 1.7. Decora Digital Dimmer & Timer's advantage is update cadence (every 3 months vs every 8 months) and review sentiment (10% vs 0%). On price, ratings volume, 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

ZSmart holds the better App Store score, 4.4 against 1.7. Both are backed by a comparable volume of ratings — 174 and 118 respectively. Written reviews complicate that: 10% of Decora Digital Dimmer & Timer's written reviews are positive against 0% of ZSmart's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Decora Digital Dimmer & Timer ships an update every 3 months, ZSmart every 8 months. Both last shipped on October 16, 2026.

Scorecard4 real differences · 6 level
Decora Digital Dimmer & Timer versus ZSmart: the parameters behind the verdict, then further details
ParameterDecora Digital Dimmer & TimerZSmart
PriceFreeFree
Rating1.7 (174 ratings)4.4 (118 ratings) — better
Positive reviews9.8% of reviews — better0.0% of reviews
Number of ratings174 — better118
Update frequencyEvery 3 months — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better14.0
Further details — not scored
Size44 MB202 MB
Age rating4+4+
DeveloperLeviton Manufacturing Co. Inc.ZKTeco Inc.

Customer experience

Decora Digital Dimmer & Timer

All ratings174 ratings
Positive13.8%
Neutral5.2%
Negative81.0%
Written reviews122 reviews
Positive9.8%
Neutral4.9%
Negative85.2%

ZSmart

All ratings118 ratings
Positive87.3%
Neutral3.4%
Negative9.3%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Decora Digital Dimmer & Timer

Reported bugs

3 issues
  • App crashes during device scanning
  • Switches unable to pair or reconnect
  • Schedules not executing as programmed

Requested features

3 requests
  • Integrate with other smart home platforms
  • Add offset option for sunrise/sunset schedules
  • Improve app stability and reliability

ZSmart

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Decora Digital Dimmer & Timer

No in-app purchases

None

ZSmart

No in-app purchases

Questions

Is Decora Digital Dimmer & Timer free?
Decora Digital Dimmer & Timer is free to download, with no in-app purchases.
Is ZSmart free?
ZSmart is free to download, with no in-app purchases.
Which has better reviews, Decora Digital Dimmer & Timer or ZSmart?
ZSmart is rated higher. Decora Digital Dimmer & Timer averages 1.7 out of 5 from 174 ratings, while ZSmart averages 4.4 from 118 ratings.
Do Decora Digital Dimmer & Timer or ZSmart have ads?
Neither Decora Digital Dimmer & Timer nor ZSmart shows ads.
Which is updated more often, Decora Digital Dimmer & Timer or ZSmart?
Decora Digital Dimmer & Timer ships an update every 3 months, and ZSmart every 8 months. Most recently, Decora Digital Dimmer & Timer was updated on October 16, 2026 and ZSmart on October 16, 2026.

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