Comparison

AC Clairity vs Crestron Zūm

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

Head to head
About

AC Clairity

Configure and manage nLight AIR lighting systems wirelessly from your mobile device. This app allows for efficient onsite setup, troubleshooting, and reconfiguration of fixtures, sensors, and wall switches, even offline. It supports multiple simultaneous users for faster project completion.

Highlights
  • Wireless nLight AIR system configuration
  • Onsite startup and maintenance
  • Zone and fixture setting adjustments
  • Offline programming capabilities
  • Simultaneous multi-user support
  • Cloud backup of configurations
Features
Read full description

Configure or reconfigure your nLight AIR lighting control system from Acuity on your mobile phone or tablet. The Clairity mobile app from Acuity Controls, allows end users (electrical contractors, sales agents, or facility maintenance professionals) to startup, configure, troubleshoot, and reconfigure nLight AIR wirelessly from a smart phone or tablet. The Clairity app is optimized for efficient onsite startup and maintenance activities. It allows end-users to easily modify the settings and operation of the fixtures, sensors, and wall switches in a zone, aiding in meeting energy code requirements. For larger installations, multiple users may use the Clairity mobile-application simultaneously to reduce onsite time. Leave the ladder and laptop in the truck! Using Bluetooth™ Low Energy (BLE) communications, users configure zones of fixtures and wall switches without the need for special hardware adaptors or wires. Utilizing a simple, visual interface, that provides real-time feedback, configure the equipment to work together for a consistent look or allow each fixture to operate independently. No Wi-Fi? No cellular service? No problem. We know the wireless and cellular coverage can be spotty in commercial buildings. You can make programming adjustments even with Clairity completely offline. Once your mobile device senses a connection to the internet, all of the configuration parameters will be backed up in the cloud! Features: • No Charge • Use one app for all of your nLight AIR projects • Graphical group / zone assignments • Photosensor grouping, auto-calibration and fine-tuning • Occupancy sensor time outs and sensitivity adjustments • Supports one or more simultaneous users on the same project • Firmware updates for nLight AIR devices • Accessibility controlled through login credentials • Share completed projects with end users for ongoing minor adjustments • Never lose programming – even if you lose your phone

About

Crestron Zūm

This app simplifies wireless lighting control for spaces of any size, from single rooms to entire buildings. It allows users to easily name and group rooms, create custom lighting scenes, and manage daylighting and scheduled events.

Highlights
  • Wireless lighting control
  • Easy design and setup
  • Room naming and grouping
  • Custom scene creation
  • Daylighting optimization
  • Scheduled event management
Read full description

Crestron Zūm is a wireless lighting control platform that’s easy to design, setup, and manage whether for a single standalone space or an entire building. All Zūm devices intelligently “pair and play” with the tap of a keypad or dimmer. The Zūm app makes it easy to name and combine rooms, set scenes, optimize daylighting, set up a time clock for scheduled events, and execute temporary overrides.

Screenshots

AC Clairity4 screens
Crestron Zūm4 screens

Verdict

The call

The clearest difference is ads: Crestron Zūm at none against AC Clairity's shown. Crestron Zūm also leads on review sentiment (50% vs 33%) and monetization model (free vs ad-supported). AC Clairity's advantage is iOS requirement (8.1 vs 14.0). On price, rating, ratings volume and update cadence 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

Crestron Zūm holds the better App Store score, 3.6 against 3.4. Both are backed by a comparable volume of ratings — 9 and 8 respectively. Written reviews point the same way: 33% of AC Clairity's written reviews are positive against 50% of Crestron Zūm's.

UpkeepUpdate frequency

AC Clairity ships an update every 3 months, Crestron Zūm every 5 months. Both last shipped on November 2, 2026.

Scorecard4 real differences · 6 level
AC Clairity versus Crestron Zūm: the parameters behind the verdict, then further details
ParameterAC ClairityCrestron Zūm
PriceFreeFree
Rating3.4 (9 ratings)3.6 (8 ratings) — better
Positive reviews33.3% of reviews50.0% of reviews — better
Number of ratings9 — better8
Update frequencyEvery 3 months — betterEvery 5 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.1 — better14.0
Further details — not scored
Size54 MB19 MB
Age rating4+4+
DeveloperAcuity Brands Lighting, IncCrestron Electronics, Inc.

Customer experience

AC Clairity

All ratings8 ratings
Positive62.5%
Neutral12.5%
Negative25.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Crestron Zūm

All ratings8 ratings
Positive62.5%
Neutral0.0%
Negative37.5%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

AC Clairity

No in-app purchases

None

Crestron Zūm

No in-app purchases

Questions

Is AC Clairity free?
AC Clairity is free to download, with no in-app purchases.
Is Crestron Zūm free?
Crestron Zūm is free to download, with no in-app purchases.
Which has better reviews, AC Clairity or Crestron Zūm?
Crestron Zūm is rated higher. AC Clairity averages 3.4 out of 5 from 9 ratings, while Crestron Zūm averages 3.6 from 8 ratings.
Do AC Clairity or Crestron Zūm have ads?
AC Clairity shows ads; Crestron Zūm does not.
Which is updated more often, AC Clairity or Crestron Zūm?
AC Clairity ships an update every 3 months, and Crestron Zūm every 5 months. Most recently, AC Clairity was updated on November 2, 2026 and Crestron Zūm on November 2, 2026.

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