1. Opt-in as a Tester:

https://play.google.com/apps/testing/com.onetotenandthen.app

2. Install 1 to 10 & Then from Google Play:

https://play.google.com/store/apps/details?id=com.onetotenandthen.app

Final note:

During Testing and Open Testing, whenever you have suggestions, recommendations, bug reports, feature requests, or any other feedback about the app, please post them in the Review section of the app's Google Play testing page whenever possible.
This is what Google wants to see during the testing process. Reviews and developer responses help demonstrate that testers are actively using the app and that the developer is engaging with their feedback.

Don't worry about leaving negative or positive reviews. These reviews will not appear on the public Google Play Store after the app is released. They are only visible to the developer and the testers participating in the testing program

So, instead of sending feedback only through private chats, messages, or groups, please post it as a review on the Google Play testing page first. You can still message me directly if you need to explain something in more detail, but having your feedback in the Play Store review section is extremely helpful.

English