Got an old phone? Make it into a home security camera.

Valentina Palladino for Ars Technica:  Smart security cameras are one of the easiest ways to start transforming your normal home into a connected home. Everyone knows about Alphabet's Nest cam, but there are plenty of other cameras to consider from companies including Samsung, D-Link, and Canary. However, you don't have to drop $200 on a bulbous eye-looking camera if you don't want to—there are apps for that. Numerous Android and iOS apps claim to use your old smartphone's cameras to replicate the features of these dedicated cams, letting you check in from your current smartphone whenever you want.

These security apps have nearly the same features as regular smart cameras but are free to download and require no extra hardware. Even older phones are powerful enough to be repurposed. That doesn't mean the apps are quite as good as purpose-built security cameras, though. We looked into the differences between home security cameras and their smartphone equivalents (specifically the apps Manything and Alfred) to see if one method of monitoring your home is better than the other.  Cont'd...

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