To write on CV

"I have developed this android application from ?"
1, the start.
2, the beginning.
3, the first place.

Could you tell me which one suits there the most or please offer me something better to say?

[Arekkuse's 'from scratch' would be heard most often in conversation.  If you want a professional way of putting it, to people form whom English is possibly a second language, I would say "I have developed this Android application from the first planning stages to its final completion."

Remember to capitalize 'Android'.]