CENGCEN vs Sight Bulb
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CENGCEN
Monitor and interact with your pets remotely using this mobile client for a smart pet snack machine. Watch your pets live, communicate with them, and dispense treats from anywhere.
- Remote pet monitoring
- Live video feed
- Two-way audio communication
- Remote treat dispensing
- Pet interaction interface
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CENGCEN is the mobile client of "Cengceng Smart Pet Snack Machine" launched by Dongguan Langmeng Intelligent Technology Co. Ltd.. You can watch pets anytime and anywhere, use the remote control monitoring interface to interact with your pets, and use the remote function to feed your pets remotely.
Sight Bulb
Monitor your home and family remotely with live HD video streaming and two-way audio. Receive instant motion alerts and review recorded video history to stay connected and secure.
- HD Live Streaming
- Two-Way Audio
- Motion Alerts
- Home/Away Assist
- Camera Sharing
- Video History
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Sight Bulb - the one that know you best. Remote Video Monitoring: Always stay closer to your family. Motion Detection: Protect your family 24/7. HD Video Playback: Do not let you miss any event. KEY FEATURES: HD Live Streaming - Keep images clear after zooming in and videos smooth. Let you see every detail. Two-Way Audio - You are able to talk to your family anywhere instantly with one tap. Motion Alerts - With the activity timeline and snapshots, you can see at a glance when events happened. Home/Away Assist - Let you control your camera and its accessories in one click by configuring the the On/Off state of the devices in Home and Away mode. Camera Sharing - Share the camera access to your family in a secure and controllable way. And you can cancel sharing at anytime. Video History - When motion is triggered, videos will be recorded to the SD card. You can scan through the entire video history to see what you missed.
Screenshots
Verdict
The clearest difference is rating: Sight Bulb at 2.8 against CENGCEN's 2.2. Sight Bulb also leads on ratings volume (123 vs 16). CENGCEN's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, review sentiment, update cadence 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.
Sight Bulb holds the better App Store score, 2.8 against 2.2. That said, the two scores are not equally well evidenced: Sight Bulb has 123 ratings behind it against 16, so its average is the more settled of the two. Written reviews split almost evenly too, at 10% and 10% positive.
CENGCEN ships an update every 3 weeks, Sight Bulb every 2 weeks. The most recent releases landed on September 8, 2026 and September 18, 2026 respectively.
| Parameter | CENGCEN | Sight Bulb |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (16 ratings) | 2.8 (123 ratings) — better |
| Positive reviews | 10.0% of reviews | 10.2% of reviews — better |
| Number of ratings | 16 | 123 — better |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 | 9.0 |
| Further details — not scored | ||
| Size | 68 MB | 207 MB |
| Age rating | 4+ | 4+ |
| Developer | Dongguan Langmeng Intelligent Technology Co. Ltd. | Continuum Holdings, LLC |
Customer experience
CENGCEN
Sight Bulb
Bugs and requests
CENGCEN
Not enough reviews yet to summarise bugs or requests.
Sight Bulb
Reported bugs
114 issues- App crashes frequently
- App is often offline
- Cannot connect to WiFi
- No notifications received
- Account creation fails
Show 109 moreShow fewer
- Videos not recording consistently
- Data not saved beyond 24 hours
- Download events stuck at 0%
- Error code 1107
- Light control removed after update
- Light bulb won't stay lit or connected
- Light doesn't stay off at night
- Image quality degrades with light on
- Voice commands unresponsive
- Low speaker volume
- Low light brightness
- No notifications after iOS updates
- App crashes after sign-in
- App injecting malware/stealing data
- App connection to video fails
- Light bulb caused network issues
- App crashes on iPad Pro
- Device offline when away from home network
- No recording when offline
- Firewall issues preventing connection
- App closes when setting light timer
- Timeline scrolling is problematic
- Tracking misses people
- Notifications not working on iPhone
- Alarm reaction time is delayed
- Tracking is unreliable at close range
- App lags significantly
- Event pictures take a long time to load
- WiFi service repeatedly blocked
- Only one user can log in at a time
- App won't load past login page
- Light bulb flickers randomly
- App stopped working on iPad
- Device consistently offline
- Motion detection occurs through glass
- Timeline is not user-friendly
- IR light causes glare
- QR code has text that may interfere with scanning
- Customer support is unhelpful
- Camera moves on its own
- App options change unexpectedly
- No technical support available
- App is difficult to use
- App settings are not clearly explained
- Only current day's videos are viewable
- Setup steps are difficult and unclear
- App freezes on login screen
- App closes when setting light timers
- App not compatible with 5G networks
- Motion detection misses humans
- App settings not fully readable on iPhone
- Motion detection misses people in frame
- Security risks identified
- App crashes on startup
- App doesn't allow reading all settings
- Tracking is questionable
- App doesn't alert when app is closed
- App doesn't show past events
- App doesn't record consistently
- App doesn't save data past 24 hours
- App download events stuck at 0%
- App error code 1107
- App update removed light control
- App light bulb won't stay lit
- App image grainy with light on
- App voice commands unresponsive
- App speakers low volume
- App light brightness low
- App no notifications after iOS updates
- App crashes after sign-in
- App connection to video fails
- App light bulb caused network issues
- App crashes on iPad
- App device offline when away from home
- App no recording when offline
- App firewall issues
- App closes when setting light timer
- App timeline scrolling problematic
- App tracking misses people
- App notifications not working
- App alarm reaction time delayed
- App tracking unreliable
- App lags
- App event pictures load slowly
- App WiFi blocked
- App only one user login
- App won't load login page
- App light flickers
- App stopped working on iPad
- App device offline
- App motion detection through glass
- App timeline not user-friendly
- App IR light glare
- App QR code issue
- App customer support unhelpful
- App moves on its own
- App options change
- App no technical support
- App difficult to use
- App settings unclear
- App only current day videos
- App setup difficult
- App freezes on login
- App closes when setting timers
- App not 5G compatible
- App motion detection misses humans
- App settings not readable
- App motion detection misses frame
- App security risks
Requested features
30 requests- Allow multiple users on one account
- Improve notification reliability for iPhones
- Add option to adjust siren volume
- Fix light timer glitch
- Improve motion tracking accuracy for humans
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- Make setup process more intuitive
- Document firewall port requirements
- Add dark mode
- Improve timeline usability
- Add option to shut off IR light
- Fix QR code scanning issue
- Provide password protection
- Allow viewing of videos from previous days
- Improve app stability on iPads
- Allow users to adjust light brightness
- Allow users to adjust speaker volume
- Make app more user-friendly for older users
- Provide better customer assistance
- Enable cloud service option
- Fix app crashing on opening
- Enable notifications when app is not open
- Allow users to set a schedule for the light
- Improve account creation process
- Fix app freezing on login screen
- Add option to turn light on/off from homepage
- Improve app responsiveness
- Make app compatible with 5G networks
- Allow for manual control of light
- Improve motion detection to avoid false positives (e.g., insects)
- Fix issue with app closing when setting timers
In-app purchases
CENGCEN
No in-app purchases
Sight Bulb
No in-app purchases
