Sentry Motion Detector Camera vs IdleEye
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sentry Motion Detector Camera
Transform an old phone into a dark-optimized motion-triggered security camera. It records clips when movement is detected and saves them directly to your device's photo library, offering a private and offline monitoring solution.
- Motion-triggered recording
- Night vision capabilities
- Records to photo library
- Offline operation
- No account or cloud needed
- Screen stays dark during use
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Sentry turns a phone you already own into a motion-triggered camera that works in the dark. Set it down, arm it, and walk away. When something moves, it records. When the movement stops, it stops. The clips land in your photo library, ready to review whenever you want. It records for you to watch later. It is not a live video feed — you are not watching a stream, you are collecting what happened while you were not there. WHAT IT IS FOR Find out what your dog does to the sofa while you are out. See which animal has been visiting the garden after dark. Watch how a sleeping cat actually gets from one end of the room to the other. Point a spare phone at the garage overnight and check the footage in the morning. BUILT FOR THE DARK Most cameras give up when the light does. Sentry changes how the sensor reads a dark scene: it picks a binned format that gathers far more light per pixel, extends the shutter ceiling, and lets the frame rate drop so the shutter has time to stay open. The result is usable footage in rooms where the standard camera returns noise. The screen stays dark while it runs. Monitoring goes on for hours, often overnight, and a bright display would waste battery and light the room you are trying to film. RECORDING IS ALWAYS VISIBLE A red dot sits in the corner of the screen for as long as recording lasts. There is no setting to turn it off, because there should not be one. Photos play the standard iPhone shutter sound. NOTHING LEAVES THE DEVICE No account. No sign-up. No cloud. No subscription. Sentry contains no networking code at all — recordings are written straight to your photo library and stay there. It works with the phone in airplane mode. HOW IT WORKS 1 tap — photo 2 taps — start recording 3 taps — arm motion detection, which begins after 5 seconds and stops 1 second after movement ceases Swipe up — cycle the rear lenses Swipe down — front camera Two fingers, 3 seconds — stop Shake — settings Long sessions are saved in chunks as they record, so a flat battery costs you minutes rather than hours. RESPONSIBLE USE Record only where you have the right to. Laws on recording people vary by country and by state, and some places require the consent of everyone present. Sentry shows a recording indicator that cannot be disabled and plays the shutter sound on photos, so anyone who looks at the device can tell it is capturing. REQUIREMENTS iPhone and iPad running iOS 18 or later. Extended recording and motion detection use significant battery — keep the device on a charger for long sessions. Video files are large, so check free space before a long run.
IdleEye
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IdleEye turns a spare phone into a private home security camera. Plug it in, point it at your door, your pet's favorite spot or the backyard, and watch live from any browser on your Wi‑Fi. Recordings stay on the device: no account, no cloud upload, no new hardware. WHY IDLEEYE • Put the phone in your drawer to work: multiple lenses, 4K and a capable low-light sensor • Your video never leaves your home • No account, and nothing to install on the viewing device • Free to use, with no subscription needed for live view, recording or history NEW: MADE FOR IPHONE DUO AND IPAD • Unfold iPhone Duo or turn iPad sideways: the live view stays on one side while recordings and settings sit on the other • On the iPhone Duo cover screen, buttons move into the side bar, just like Apple's own apps • One familiar layout across iPhone, iPhone Duo and iPad A LIVE PAGE BUILT FOR MONITORING • What you see is what's recorded: the viewfinder shows the exact framing sent to the browser and into recordings • Status strip: power, temperature, storage and recording at a glance • Start Monitoring: check power, Wi‑Fi, recording and Guided Access, then the screen goes dark and IdleEye keeps watch • Recent events under the viewfinder; tap one to replay it WATCH AND CONTROL FROM ANY BROWSER Open the address or scan the QR code in any modern browser on a computer, tablet or phone on the same Wi‑Fi: • Live video with about half a second of delay, or a near-zero-latency mode • 0.5×–8× zoom with automatic lens switching on multi-camera models • Remote torch with brightness control, and auto light when it gets dark • Front/back camera, rotation and mirror, so you can mount it any way • 720p, 1080p or 4K, H.264 or H.265 • Optional one-way live sound • Phone-friendly controls; add the dashboard to your Home Screen MOTION DETECTION AND RECORDINGS • On-device motion detection with adjustable sensitivity and pre-/post-event recording • Optional people & animal filter, powered by on-device Apple Vision • Optional 24/7 continuous recording that loops over the oldest footage • A full day on one timeline; tap any event to play it • Multi-select to share or delete; swipe for quick actions • Trim and export a lossless MP4, or browse clips in the Files app • Keep 1–90 days with a storage cap; the oldest clips are cleaned up automatically BUILT TO RUN ALL DAY • Screen blanking helps prevent OLED burn-in and saves power while recording continues • Running hot in 4K? Switch to 1080p in one tap GOOD TO KNOW • Viewing works on the same Wi‑Fi as the camera phone. Remote viewing over the internet is not available. • Keep IdleEye open and plugged in on the camera phone; Guided Access keeps it running around the clock. • Events are saved to the timeline; IdleEye does not send push notifications. • The web dashboard is open to devices on your local network, so use a Wi‑Fi you trust. PRIVATE BY DESIGN Video, sound, recordings and settings stay on your phone. Uninstalling the app removes everything. IdleEye collects anonymous usage statistics to improve the app (never video, sound, recordings or network addresses), and you can turn them off any time in Settings. GREAT FOR Your entryway and living room, pets, a napping toddler's room while you're home, a garage, workshop or shop counter. 12 LANGUAGES The app and the browser dashboard speak 12 languages, including Arabic with a right-to-left layout. RESPONSIBLE USE IdleEye is for monitoring your own home and spaces. Record only where you have the right to, give notice where the law requires it, and follow local audio-recording laws. IdleEye is not an alarm, medical or baby-safety device. Questions? support@innofun.digital
Screenshots
Verdict
The clearest difference is update cadence: IdleEye at every 4 days against Sentry Motion Detector Camera's fortnightly. IdleEye also leads on iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Sentry Motion Detector Camera ships an update fortnightly, IdleEye every 4 days. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.
| Parameter | Sentry Motion Detector Camera | IdleEye |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | BigBalli Consulting llc | INNOFUN DIGITAL ENTERTAINMENT LLC |
In-app purchases
Sentry Motion Detector Camera
No in-app purchases
IdleEye
No in-app purchases
Questions
Is Sentry Motion Detector Camera free?
Is IdleEye free?
Do Sentry Motion Detector Camera or IdleEye have ads?
Which is updated more often, Sentry Motion Detector Camera or IdleEye?
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