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Products & Applications

Old Phones Can Be Turned Into Security Cameras in Minutes, Engadget Shows

Engadget says old phones can become security cameras using the free AlfredCamera app in minutes.

AI News Feed · 2026-09-06 22:20

According to the guide, AlfredCamera was chosen because it is free, cross-platform and easy to set up. It works on both iOS and Android. To get started, users need their old phone, their main phone, a stable internet connection (Wi-Fi is preferred, but mobile data works) and a few free minutes. Both devices should download the AlfredCamera app. On the main phone, after signing up and selecting “Prepare another device as your camera,” users choose “Mobile Device.” They then pair the two phones by logging into the same account on the old phone or by scanning the QR code shown on the main phone. The main phone must be set to Viewer mode, while the old phone operates as the Camera.

Beyond live video, the free version of AlfredCamera includes a full-volume siren alarm, low-light mode for nighttime viewing, two-way talk and controls to switch between cameras or change orientation. Users who want more can subscribe to the Standard plan for $5.99 per month, which supports up to four cameras (the free plan is limited to two), HD streaming, an eight-hour recording loop, 14 days of cloud storage and detection of people, vehicles and pets. The $7.99 monthly Premium Plus plan removes the camera limit and adds full HD, unlimited recording and 30-day cloud storage.

Engadget also offers practical advice for getting the most out of a DIY security camera. Since many older phones have weak batteries, the device should be left plugged in near an outlet, or connected with a longer cable if the desired angle is farther away. A phone stand can improve flexibility in positioning. Before deployment, it is advisable to factory reset the phone, which clears old accounts, passwords and personal data, and frees storage for recordings. The reset is optional but recommended because the phone will run continuously and stay connected to Wi-Fi. Users should also disable battery optimization for AlfredCamera in the phone’s settings, preventing the operating system from closing the app when it runs in the background. If the camera is placed outdoors or in another exposed location, a clear, waterproof case helps, or it can be mounted just inside a window.