Update: As of July 2026, public links to classic apps are available on paid plans: Team, Business, and Enterprise. If you self-host Retool, reach out to your account manager or the support team and request access to public links. Share your classic apps externally | Retool Docs
Hi @Cao_Dung,
Thanks for flagging! It looks like our team sent a few replies, but I'm sorry to hear the replies didn't reach you 
Public apps are only a Retool Cloud feature. Is switching to Cloud an option for you? If you aren't open to switching to Cloud, I'd recommend checking out our Business plan feature, Retool Embed, which could potentially fit your use case