MyMosq is entirely free: the project is run by volunteers and funded by donations — there are no plans, no upsells, and no commercial interests. Anyone who wants to support the project donates directly to MyMosq; those donations fund the directory itself.
moschee.io also starts free and adds transparent, publicly listed plan tiers at /pricing. The difference is what you get in return: a professionally operated platform with support — website, app, screens, donations, livestreaming, and live translation that grow with your community.