For those tired of strangers latching on to their unprotected Wi-Fi network, or simply looking to have a little fun at the expense of others, Digitalsquid created Network Spoofer, allowing users to play a few tricks on those connected to just about any accessible Wi-Fi network.
Users can switch, blur, or flip images, redirect browsers to specific URLs or videos (with a special setting for automatic RickRolling), and change Google searches (on others' computers) all from their rooted, Android-powered device. Of course, to carry out these commands, you must be connected to the same Wi-Fi network as your target(s). With functions like these, I only wonder how I didn't run into this app before.
The app works just as you'd expect, operating with simple one-click commands, and carrying out your bidding in relatively short order. Some of the commands (like image replacement) can get a little chaotic with complex websites, but when using an app like this, I don't think the target's user experience is a primary concern.
All of that being said, there are a couple of downsides to this app. First off, Network Spoofer requires a hefty download before running (~120MB). This isn't a huge complaint, but it does mean that Network Spoofer is not an app that one can install and deploy instantly – the fun provided by the app requires at least marginal planning. The other downside is battery performance. I observed a 40% drop in battery over a period of about one hour with the app running. For a novelty app like this, battery life may not be the most important feature, but a 40% drop in one hour is unacceptable.
Overall, Network Spoofer is a fun app, and has potential for a few laughs. Of course neither Android Police nor Digitalsquid can be held responsible for any use or consequences stemming from the app, but if you're looking for an April Fools shoe-in, you may be in luck.