Zero Cam vs Demon alarm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zero Cam
This app acts as an outdoor assistant, allowing you to browse and download photos and videos directly from your device without needing a laptop. It also enables remote viewing of your camera's feed and access to advanced settings for multi-mode operation.
- Browse and download photos/videos
- Remote camera viewing
- Access advanced settings
- Multi-mode operation
- File sharing
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Your new outdoors-assistant, Zero Cam. 1. No Laptop around you? - Click you 'File Explorer', easy to browse photos and videos. - Download File, and share your moment. 2. Fixed Camera, can't control it? - Enter 'Check remote', see what the camera see. 3. Advanced settings. - Enter 'Check settings', all details listed, and enjoy the multi-modes.
Demon alarm
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Tired of snoozing your alarm and going back to sleep? Demon Alarm forces you to solve math problems before it stops — no shortcuts, no snooze button. Choose your difficulty from basic arithmetic to calculus-level problems. The harder the math, the more awake you'll be by the time you're done. Features: • Math challenge required to dismiss • Multiple difficulty levels • Build in sound packs including: • Insults • Screams • Weird and embarrassing sounds • Import your own alarm sounds The app is free to use, but with limited features. Free users will be forced to the hardest math difficulty and locked to the built-in sound pack.
Screenshots
Verdict
The clearest difference is in-app purchases: Zero Cam at none against Demon alarm's 1. Zero Cam also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support 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. Demon alarm sells 1 one-off in-app purchase. Zero Cam asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.
| Parameter | Zero Cam | Demon alarm |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (183 ratings) — better | — |
| Positive reviews | 9.4% of reviews | — |
| Number of ratings | 183 — better | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 6 MB | 48 MB |
| Age rating | 17+ | 9+ |
| Developer | 雄峰 吴 | letong he |
Bugs and requests
Zero Cam
Reported bugs
10 issues- App crashes when opening album storage
- App closes when clicking on photos
- Connection timeout errors with 'Connect over time' message
- WiFi connection fails despite multiple attempts
- Photos deleted after syncing
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- App returns to home screen unexpectedly
- Camera WiFi fails to connect to app
- Slow WiFi transfer speeds
- App unresponsive after initial connection
- Gallery view causes immediate app closure
Requested features
8 requests- Offline photo viewing capability
- Better error message explanations
- Improved app stability and performance
- USB cable transfer alternative
- Regular app updates and maintenance
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- Clearer setup instructions and tutorials
- Customer support chat or help system
- Photo deletion prevention safeguards
Demon alarm
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Zero Cam
No in-app purchases
Demon alarm
- Demon alarm premium$4.99
Questions
Is Zero Cam free?
Is Demon alarm free?
Do Zero Cam or Demon alarm have ads?
Which is updated more often, Zero Cam or Demon alarm?
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