how to install apps

Hi guys, OK I'm not going to ask little by little on how to do this but i want to know how to design and install an APP.

also how long do you think for something like that....totally new to all this.

Thanks !

umm do you have any programming experience what so ever?


Also on the 25th i will be releasing a tool ive been working on to help ppl test apps on their phone wihtout the need for an Appe Dev Program thing