Gauth, built by GauthTech, a ByteDance company, lets a student photograph a homework problem and get an instant step-by-step solution, similar in concept to Photomath or Socratic, also covered in this directory, but covering a broader range of subjects beyond math specifically, and backed by the same company behind TikTok's global distribution reach.
That broader subject coverage, alongside camera-based input as the primary interaction method, has built significant international popularity, particularly among students outside the US, leveraging ByteDance's existing experience building and distributing consumer apps at global scale.
A free tier covers limited daily questions, and paid plans start around $6 a month for more usage. For a student who wants to photograph a homework problem across a range of subjects, beyond math alone, and get an instant explanation, Gauth's broader subject coverage and global reach distinguish it from more narrowly math-focused camera-based competitors.
