All About the Rosetta Stone Fluency Builder Mobile App - Rosetta Stone Support for School

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All About the Rosetta Stone Fluency Builder Mobile App


Rosetta Stone Catalyst learners who have placed into Fluency Builder can use the Rosetta Stone Fluency Builder mobile app to continue learning on-the-go with a smartphone or tablet. Progress continuously syncs so you can easily move from a laptop to a mobile device and pick up where you left off. The app is free and can be used with the information below:

Downloading the App

To download the app, navigate to the App Store (on iOS) or the Google Play Store (on Android) and search for Rosetta Stone Fluency Builder. The app icon is a blue stone in a white square.

You can also quickly get to the app by clicking on the Get our mobile app! section of the Learner Dashboard. Verify that your email address is filled in, then click Send and the program will email you a link to download the app.

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Once you have downloaded the app and launched it, you can sign in.

Signing In

To sign in, enter the email address that is associated with your Fluency Builder account and your password. Then click Sign In.

If your organization uses a Single Sign-On (SSO) service, you can use the Get our mobile app! feature on the web version of the Learner Dashboard to have your organization’s SSO code sent to you. The code is usually similar to your organization’s name or an abbreviation of it. Once you have the code, click the “I have an SSO code” link, enter the code, and you will be prompted to sign in with your credentials through your organization’s SSO service.

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Using the App

Once you’re signed in, you will find all of your selected courses available under My Courses. Click Resume or Start to work on a lesson. You can also add new courses by clicking Add.



Fluency Builder includes expert reviews, where a Rosetta Stone tutor who is a native speaker of the language you’re learning will review your answers for certain types of activities and give constructive feedback. If you have received any expert reviews, you can find them under Messages.

*Catalyst for Higher Education does not include expert reviewed activities.

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On the Profile tab, you can Sign Out, change a few settings (voice type and validation sounds), send Rosetta Stone direct feedback, and view our policies and terms of use.

System Requirements

  • Available for iOS 11.0 or later
  • Available for Android 6.0 or later

Click here for our full system requirements.


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