ThingSpeak is available as a free service for non-commercial small projects (<3 million messages/year or ~REPLACE_FREE_MESSAGES_PER_DAY messages/day). For larger projects or commercial applications, four different annual license types are offered: Standard, Academic, Student and Home. ThingSpeak is bought in units, where one unit allows 33 million messages to be processed and stored in a one-year period (~REPLACE_PAID_MESSAGES_PER_DAY messages/day). One unit also provides the ability to create a fixed number of channels on ThingSpeak. Choose your license type below to learn more.