locize is the alternative to Phrase.
If you want to migrate your data from Phrase to locize, this following guide will help you with the process.
Download your localization files
You will first need to download your translations from Phrase:
Log into your Phrase account
Select the project you want to migrate by clicking on the project’s name
Click on "Locales"
Download or export the translation files (best is to export as Simple or Nested JSON format, but other formats should work too)
Extract the ZIP
Sign up and create a project
If you haven’t done already, you should create your free trial account and create your first project.