Product / Translation Tools
Link to the app: https://translate.mvdm.io
Translation Tools aims to make translating software seamless. By integrating directly with the development environment it allows non-developers to edit translations without having to know anything about the development tools that are normally used by programmers.
Translation Tools is currently in Open Beta. You can register your account for free; no credit card required. When the beta ends you will be asked if you want to continue using Translation Tools or if you would like to stop. Continuing will mean that you'll subscribe to a paid plan. I have not yet determined the pricing.
Translation Tools integrates directly with your Git repository. It will find all the translation files in your repository and present the keys and values in a grid for easy editing. You can invite anyone you want into your account to participate in translating.