At a time when many carriers offer very limited cellular data packages, Wi-Fi awareness is of much importance to smartphone and tablet users. Many of you will have fallen victim to roaming or download charges at one point or another, but if you stick to a Wi-Fi hotspot, browsing and other online activities suddenly get a great deal cheaper. Unfortunately, when you’re not in a Wi-Fi location and forget to turn it off, the strain – or rather, drain – on your battery can be significant. Thankfully for those on Android, a little app called Smart WiFi Toggler does exactly as its name implies, and only prompts your Wi-Fi connection into action when you are in the vicinity of a favored hotspot.

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