Even if you have already started localizing your Mac or iOS app before discovering TraductoPro, you can easily switch to TraductoPro without losing what you have already done with another localization service or localization provider.
For document translation and app store information localization you can add your translated content into TraductoPro.
For Xcode projects, TraductoPro will give you the option to import existing localization so you do not lose any previous translation of your app strings. Upon importing existing localization you will be able to view and manage them in TraductoPro.
When you modify your app you will be able re-import new and updated strings into TraductoPro. Upon ordering translation the app will only quote you for new and updated strings that need translation.
Essentially whether you start a new localization project or had your app previously localized, with TraductoPro you will never lose any existing localization.