I loved the overall simplicity of the app. Good job. :}
First impressions:
* Good call on not requiring an account;
* 'Back' hardware button does not work on 'Settings' or 'Daily habits';
* I'd rather see a list of all the tasks completed for the day than just an icon;
* The loading screen (logo behind a black background) could temporarily hide the top status bar (the one that shows the notifications, time, battery level, WiFi signal quality, etc) or you could change its color to black so there's no color mismatch between the two;
* Instead of providing a way to download a shared routine from an URL, you could display all the routines publicly shared by other users directly on the app, adding an option to download them;
* It's impossible to add more tasks for the day after you complete them all;
If you are looking just for a 3D modeler that's easier to use than Blender, there's Wings 3D (https://www.wings3d.com) which is also free and open source.