As clearly stated on the WordPress.org plugin page, Free PDF to Flipbook lets you create flipbooks for free, forever. There is no trial period and no requirement to upgrade to continue using the core functionality.
The Pro version is completely optional and is only intended for users who need additional premium features. The free version remains fully functional for creating flipbooks.
We aim to be transparent about what is included in the free version and what is part of the optional Pro upgrade. If there’s a specific feature you expected to be included for free, we’d be happy to clarify.
