Control4 for OS 3 vs Flex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Control4 for OS 3
Transform your iPhone or iPad into a personal interface for your smart home. Control all connected devices, including lights, thermostats, security, and media, with a redesigned, personalized experience. Requires a Control4 Smart Home OS 3 system.
- Personalized user interface
- Control lights, thermostats, security
- Manage music and video
- Access favorites and room-specific settings
- Intuitive volume control
- Customizable room wallpapers
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This Control4 app is specifically designed to be used with Control4 Smart Homes running OS 3. It turns your iPhone or iPad into your personal user interface to control all your smart home devices. ------------ NOTE: Prior to using this app, your Control4 system must be updated to Control4 Smart Home OS 3 or later. If you are unsure of the software version on your system, check with your Control4 Dealer or login to your Control4 account at control4.com. ------------ Smart Home OS 3 was thoughtfully redesigned to make it more personal and the smart home OS of choice for families. It enables you to check on the status and control your entire smart home including music, video, lights, thermostats, security system, cameras, door locks, garage doors, pools, and much more. New features in OS 3 • Favorites give you fast access to the devices and sources that you use most • Quickly personalize the interface right from the app • Each room can have its own favorites for fast access to the things you use most • Hide icons that are less important, but easily access them through the room menu • Swipe between favorite rooms to quickly navigate around the home • Filtering lets you see all lights, locks and shades, or just those that are on, unlocked or open • All-new Active Media Bar shows what’s currently playing and gives you fast control of media • Easily adjust volume through a new, intuitive volume slider control • Background wallpapers for each room can now be easily changed right from the app Visit Control4.com to learn more, find a showroom near you, or find a independent professional integrator.
Flex
This application allows you to customize the colors and hues of your lighting system. Enhance any environment with a spectrum of bold colors, warm tones, and custom shades, bringing your creative vision to life.
- Control lighting colors
- Customize hues and tones
- Enhance lighting environments
- Creative color application
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Control the colors of your lighting from the palm of your hand. SPJ Lighting unlocks your creative imagination to enhance any lighting environment. From bold colors to warm tones and hues our app will bring color to the night.
Screenshots
Verdict
The clearest difference is ratings volume: Control4 for OS 3 at 570 against Flex's 4. Control4 for OS 3 also leads on update cadence (fortnightly vs every 6 weeks). Flex's advantage is iOS requirement (9.3 vs 18.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 3.1 for Control4 for OS 3 against 3.0 for Flex. That said, the two scores are not equally well evidenced: Control4 for OS 3 has 570 ratings behind it against 4, so its average is the more settled of the two.
Control4 for OS 3 ships an update fortnightly, Flex every 6 weeks. The most recent releases landed on September 23, 2026 and June 1, 2026 respectively.
| Parameter | Control4 for OS 3 | Flex |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (570 ratings) — better | 3.0 (4 ratings) |
| Positive reviews | 22.0% of reviews | — |
| Number of ratings | 570 — better | 4 |
| Update frequency | Fortnightly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 18.0 | 9.3 — better |
| Further details — not scored | ||
| Size | 207 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Snap One, LLC | LinkCom Manufacturing Co., Ltd. |
Customer experience
Control4 for OS 3
Flex
Bugs and requests
Control4 for OS 3
Reported bugs
5 issues- Intercom and doorbell issues
- Thermostat controls not working as expected
- Inability to connect to the system remotely
- Compatibility problems with newer iOS versions
- Unexpected app crashes and freezes
Requested features
5 requests- Apple Watch app support
- Better integration with Apple ecosystem
- Improved voice control and Alexa integration
- More customization options for users
- Faster and more responsive app performance
Flex
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Control4 for OS 3
No in-app purchases
Flex
No in-app purchases
Questions
Is Control4 for OS 3 free?
Is Flex free?
Which has better reviews, Control4 for OS 3 or Flex?
Do Control4 for OS 3 or Flex have ads?
Which is updated more often, Control4 for OS 3 or Flex?
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