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Prezi vs Claper: catalog facts
Prezi	Claper
Freemium Free to start with no credit card required; paid plans add more features.	Free Open source under AGPL-3.0 and free to self-host.
Web	Web, Self-hosted
Audience polls, quizzes and Q&A through a QR code with no app or login AI drafting from a description or an existing deck	Live polls and audience questions during a talk Participants join from their own devices
Hosted service that needs an internet connection to present Advanced features sit behind paid plans	Self-hosting requires running an Elixir application Research does not detail hosted plans or pricing
Web application	Self-hosted
Closed source	Open source
License not stated	License: AGPL-3.0
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 2, 2026

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