Taking over existing app and rewrite it with ionic? Tips?


(sorry for my english, its to early in the morning…)
Has anyone rewritten an existing app (ios+android) into ionic? Im going to get certificates/etc for and old app that I should remake with ionic.

  1. What kind of certificates/files/etc (both ios and android) do I need from the old developer?
  2. Can I just make a new app and replace (push a new update to the old app) it in Appstore/Google play store?
  3. Anything else?

Any help would be VERY helpful :smile: