There are 3 telltale signs that you used AI to make your app, and they aren't pretty

Notice how many new apps look the same — beige/tinted backgrounds, sans‑serif fonts and rounded cards — it’s the “algorithmic Uniqlo” of UI.
Often they have gorgeous landing pages but shallow interactions: things that look clickable don’t work and error/empty states are missing.
Quick fixes: prompt AIs for design decisions (not just “make it modern”), give specific brand rules, or hire a designer to make your app actually feel unique.