What you get
- A Google Play promo code for Unlock All: all six modules and future ones (normally €9.99 in the euro area). It is a one-time purchase, not a subscription.
- Early access to the Android version.
What we ask
- An Android phone (Android 8.0 or newer) and a Google account.
- Stay in the test for at least 14 days and use the app a few times.
- Tell us what works and what doesn't.
How to join
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Join the beta group
Join our Google Group with the Google account you use on your Android phone.
Join the group
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Become a tester
Open the test page on Google Play with the same account and tap Become a tester.
Open the test page
If the page says the test isn't available, wait a few minutes after joining the group and try again.
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Install Codon One
Install the app from Google Play. The link works once you are a tester.
Get it on Google Play
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Unlock the full course
Within a few days we email your promo code to the address you joined the group with. Redeem it in Google Play (profile picture → Payments & subscriptions → Redeem code), then open the app.
Feedback
Write to info@codon-one.com, or use the private feedback on the app's Google Play page. Screenshots and your phone model help a lot. Positive or negative, every report counts.
Good to know
- The Android version has lessons, quizzes, flashcards, the glossary and Lectures. Ribo, the AI study helper, is not part of the first Android release.
- Google requires at least 12 testers for 14 days in a row before an app can be published. If you leave the test and join again, your 14 days start over.
- You can leave the test and the group at any time. Your promo code stays yours.
- Google handles the group membership. We see only your email address and use it for the beta and your code, never for a newsletter. See also our Privacy Policy.
