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Photomath vs Gauth: catalog facts
Photomath	Gauth
Freemium Basic tier is free; a paid plan billed annually adds extra help.	Freemium Free to start, with a paid Gauth AI Pro subscription that has a free trial.
Android, iOS	Android, iOS, Web
Camera scanning of printed problems, including word problems Step-by-step explanations in the free tier	Solves questions from a photo or pasted image Shows step-by-step working
Mobile only, with no desktop version Some explanations and tips require the paid plan	Unlimited answers require a paid plan Easy to use for copying answers rather than learning
Downloadable app	Downloadable app, Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.