1. Join the tester group
No approval wait is required. Select ‘Join group’ on the Google Groups page.
Join the groupIf Google sign-in does not work inside a messaging app, choose ‘Open in another browser’ from its menu.Adult Android volunteers wanted · Free participation
Status checked: 14 October 2026 · Approved and published · Play updates may take timeJoin the free app test
Explore bones, muscles, the brain and organs in 3D, and try anatomy quizzes.
Android 7.0 or later · Google Play account required
Use the same Google account for every step.
Cannot open the testing link?
Approval and publication are complete, but Google Play updates may be delayed for some accounts or devices. If the page does not open, check that your group and Play accounts match, then try again shortly.
Open Chrome on Android and sign in with your Google Play account. Use that same account to join the group, opt into the test and install. If enrolled in the internal test, leave it before joining the closed test.
anatomyworld.bpage4u.chatgpt.site/test.html2. Join the test · Install the app
Google approval and closed-test publication are complete. The official tester opt-in page was confirmed to open on 14 October 2026.
Use the button below, select “Become a tester,” then follow the Google Play download link to install. Play updates may take longer for some accounts or devices; check that you joined the group with the same Google account and try again shortly.
Become a testerJoining the group or using the web version does not start the 14 days. Once you opt into the actual closed test, please remain opted in for at least 14 consecutive days.
Official test participation and app installation addresses
Google Play tester opt-inGoogle Play app installation pageTry the web version now
Open 3D anatomyUsing the web version does not count toward the Play closed-test days.
Includes educational models of bones, muscles and organs, plus non-sexual reproductive anatomy. Please report problems with navigation, model selection, performance or quizzes.
An educational reference app. Please share any problems or suggestions. Send feedback