Calex Smart vs ENERGIZER SMART
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calex Smart
Control your smart lights and appliances with ease. Automate your devices using smart routines for seamless on/off control. Enjoy plug-and-play installation via WiFi without needing an extra hub.
- Control smart lights and appliances
- Create smart routines
- Plug and Play WiFi installation
- No additional gateway needed
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1. Easily control your smart lights and appliances via the Calex Smart app 2. Use smart routines to switch lights and appliances on and off 3. Plug and Play installation based on WiFi 4. You do not need an additional gateway/Hub
ENERGIZER SMART
Remotely manage your home appliances and lighting from any location. Schedule actions with timers, control multiple devices at once, and easily share access with family members. Customize lighting with brightness and color adjustments.
- Remote appliance control
- Simultaneous multi-device management
- Timer scheduling
- Device sharing
- Customizable lighting control
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1. Control home appliances from anywhere. 2. Simultaneously control multiple devices with one App 3. Set timer to perform multiple functions 4. One tap to share devices amongst family 5. Quick & easy connect to App devices 6. Adjust Brightness, Colour and Warmth of lighting
Screenshots
Verdict
The clearest difference is rating: ENERGIZER SMART at 4.7 against Calex Smart's 4.3. ENERGIZER SMART also leads on ratings volume (388 vs 35) and iOS requirement (12.2 vs 14.0). Calex Smart's advantage is update cadence (every 2 months vs every 9 months) and device support (4 vs 2). On price, review sentiment, 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.
ENERGIZER SMART holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: ENERGIZER SMART has 388 ratings behind it against 35, so its average is the more settled of the two. Written reviews point the same way: 34% of Calex Smart's written reviews are positive against 40% of ENERGIZER SMART's.
Calex Smart ships an update every 2 months, ENERGIZER SMART every 9 months. Both last shipped on October 13, 2026.
| Parameter | Calex Smart | ENERGIZER SMART |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (35 ratings) | 4.7 (388 ratings) — better |
| Positive reviews | 33.6% of reviews | 39.7% of reviews — better |
| Number of ratings | 35 | 388 — better |
| Update frequency | Every 2 months — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 14.0 | 12.2 — better |
| Further details — not scored | ||
| Size | 256 MB | 173 MB |
| Age rating | 4+ | 4+ |
| Developer | Electro Cirkel Retail B.V | Supreme Imports Limited |
Customer experience
Calex Smart
ENERGIZER SMART
User reviews
Calex Smart
From 35 App Store ratingsWhat we love
- 💡 Good value for money
- 👍 Intuitive and flexible app
- 💡 Lights work well
- 💡 Easy to use app
- 💡 Good control over brightness and hue
Room to improve
- 🐛 Frequent connection issues
- 🐛 App crashes frequently
- 🐛 Difficult device pairing
- 🐛 Poor integration with Apple Home
- 🐛 Devices go offline randomly
ENERGIZER SMART
From 388 App Store ratingsWhat we love
- 🚀 Super fun
- 👍 Great app, easy to use
- 👍 Loved this product
- 👍 Energizer lights are a bargain
- 👍 Precise brightness adjustment
Room to improve
- 🐛 Terrible app, can't press buttons
- 🐛 Doesn't work after half a year
- 🔒 Needs location and WiFi login
- 🐛 Lights turn on randomly, color issues
- 🔒 Privacy invaders, too much data extraction
Bugs and requests
Calex Smart
Reported bugs
52 issues- App crashes when changing color
- App crashes on iPhone
- App keeps crashing or losing connection
- App loses connection for no reason
- Devices go offline and won't reconnect
Show 47 moreShow fewer
- App duplicates automation routines on edit
- Light stops responding, app stops responding
- Smart plug flashing blue and won't reset
- Bulb in disco mode, app refuses to pair
- Lights start flashing sometimes
- App can't find devices
- Scheduled automations don't happen
- Verification code not sent
- Popup about bad signal obstructs settings
- Timer function randomly closes app
- App no longer allows music sync for lights
- App gives non-stop reviews
- Bluetooth connection issues, app hardly recognizes bulbs
- App forgets bulbs after going to home page
- Cannot change warmth of light, stuck on cool white
- Bulb appears offline when away from home
- App refuses to pair
- Unskippable ad to turn off light
- Advertisements every time app is opened
- Device doesn't connect sometimes
- Randomly loses connection and lamp flashes
- App crashes
- Account cannot be verified or network error
- Cannot reset password, account doesn't exist
- Devices keep dropping out and need re-adding
- Bulb goes offline and needs resetting
- Siri integration doesn't work, custom keyword reverts
- Annoying dialog after executing a task
- Bulb keeps going offline and flashing
- Getting alerts outside of scheduled times
- Pairing process is terrible for multiple devices
- Cannot pair all bulbs on a single switch
- App keeps losing connection with the watch
- Apple Watch integration is poor
- Randomly woken up by light turning on/flickering
- App doesn't realize bulb isn't responding
- Bulb doesn't respond to commands
- Update made lights unusable, cannot connect
- Disconnects randomly
- LEDs started flashing and couldn't be turned off
- Have to sign back into room every time
- Half of LED strip fell off
- Doesn't change colors, only dims
- Cannot link lamp
- No option to use as Bluetooth bulb
- App requests location services to add devices
- Old version of Apple widgets used
Requested features
22 requests- Widget support for Home Screen
- Dark mode
- Better Apple HomeKit integration
- Create widgets for iPhone Home Screen
- Integrate with Apple Shortcuts for custom automation
Show 17 moreShow fewer
- Add colour changing cycle to a scene
- Link items together to sync
- Proper control of colour cycling timings
- Sync multiple lights
- Add colour cycle to a scene
- Camera mode to sync lights with TV colors
- Dusk-dawn switching that follows sunset/sunrise
- Lock Screen widget for quick control
- Ability to turn all devices in a room on/off with one touch
- Scenes for entire rooms or home
- Fade up and fade down options
- Chain tasks together (e.g., 'turn off all lights')
- Define sets of colors for tasks
- Preview of color when setting up a task
- Use alternating color for configuration instead of strobing flash
- Add multiple devices at once connecting to the same WLAN
- Fade up and fade down instead of just on and off
ENERGIZER SMART
Reported bugs
10 issues- App crashes phone when using color wheel
- App randomly logs user out
- Fails to re-link with Alexa
- Impossible to enable in Alexa
- Keeps disconnecting from lights
Show 5 moreShow fewer
- Lights flashing when disconnected
- Bulb won't connect to app
- App keeps closing after short use
- Turns phone off after 10 seconds
- Lights go green instead of selected color
Requested features
8 requests- Dark mode for the app
- Widgets for easier access
- Lock screen controls
- Ability to set timer to turn on after a delay
- Preset color options
Show 3 moreShow fewer
- Smooth color transitions
- Background music sync
- Siri integration
In-app purchases
Calex Smart
No in-app purchases
ENERGIZER SMART
No in-app purchases
