APN on-off Widget is described as '“APN OnOff Widget is a beautifully designed and easy-to-use widget. It allows you quickly enable or disable your 3G/EDGE/GPRS with only ONE click and lets you know the current connection status in a straight view.”'. There are seven alternatives to APN on-off Widget for Android and Android Tablet. The best alternative is JuiceDefender, which is free. Other great apps like APN on-off Widget are APNdroid (Free, Open Source), APN-Switch (Free, Open Source), Hibernate - Real Battery Saver (Freemium) and 2x Battery (Freemium).
JuiceDefender saves battery power (lots of it!) by controlling the device data connection and/or WiFi. You can schedule regular APN/WiFi activation to let background data sync occur and have APN/WiFi enabled while the screen is on. It also helps in minimizing distractions.
Toggle that prevents your phone from connecting to internet over 3G/EDGE/GPRS. This application modifies APN names and types by adding apndroid suffix to them (you can edit them anytime in your phones Settings).
Battery Optimizer is one of the best free battery saving app which extend your battery life and save more up to 65% by killing running apps with Battery Optimizers. Battery Optimizer is essential for your phone, Enjoy the core of incredible power.