Smartapp is described as 'is the intelligent way to do your mobile recharges. Save money everytime you do a prepaid recharge or pay your postpaid bills. smartapp saves you money by recommending the mobile recharge offers you need'. There are more than 10 alternatives to Smartapp for Android, iPhone, iPad, Apple Watch and Blackberry. The best alternative is 3G Watchdog, which is free. Other great apps like Smartapp are Call Meter 3G (Free), NetCounter (Free, Open Source), My Data Manager (Free) and Phonalyzr (Freemium).