If you're a long-time Android power user who just switched to iOS, you would want to warn everyone how hard it is to enjoy the kind of customizability and convenience that Android brings to the table. For sure iOS has the kind of mobile experience that's missing on the Android, and so does the Android to iOS. But if we are to weigh both based on the criterion of which one gives the best mobile experience, Android, well for me, is the real winner.
1) Tasker (link)Tasker is one of the Android apps that makes every iPhone user jealous. This $3.00 USD app makes your Smartphone extra smart by automatically executing certain actions based on the profile or criteria you created. You can define a set of instructions/actions which will be automatically performed by your phone in response to events such as location change, time of day, among others.
Example: you can automatically put your phone into silent mode when you're entering on your office, or you can automatically send an SMS to someone when you're leaving the house. There are myriad of automation options you can exploit with Tasker, making your Android experience utterly unforgettable.
3) Wifi Kill (link)Now, let's talk about evil: how many times have you wished you could disconnect other devices connecting on a congested wireless network so you can enjoy the extra bandwidth juices on that network? Yes, you can manage and "kill" other devices with this awesome root-only app: Wifi Kill.
4) AirDroid (link)Your Android experience won't be complete without AirDroid. With AirDroid, you don’t even need to touch your phone in order to use it. The app allows you to access your device remotely by going to AirDroid website and scanning the QR code on the page. The free version of the app lets you do things like reply to text messages, organize your photos, and play music -- all from a web browser while the paid version lets you remotely access your camera and helps you locate a missing or stolen device.
5) SuperBeam (link)SuperBeam makes transferring of large files as convenient and fast as it should have been. SuperBeam allows you to share large files between Android devices at a blazing speed using WiFi Direct. If WiFi Direct fails, you can even use existing WiFi network to move files from one device to another. Go check out SuperBeam at Play Store.
Those are my shortlist of 5 essential Android apps that hopefully will make their way to iOS!