Hi HN! Daniel from YC S21 here, launching a project called aSim (https://asim.sh/), which lets people generate/simulate usable native apps (called Sims). Describe an app you want and aSim will generate it. Then, edit and refine it to better suit your needs. Sims are also shareable via links, and basic app functionality is also available through web (though mobile is much more feature complete).