As IFTTT, Zapier
also helps users to connect apps and services, but it seems more directed to the corporative world. While IFTTT provides support for home devices (as lighting and security systems) and voice assistants (Alexa, Cortana, Google Assistant, and Siri), Zapier
focuses on services such as Amazon S3, SQL Server and Zendesk. However, many services and apps are common to both IFTTT and Zapier
One major difference between them is that Zapier
is able to connect more than two apps/services, allowing its users to create workflows like converting an Evernote reminder both in a Google Calendar event and in a Google task. It also has a more sophisticated system for combining "ingredients" (not under this name, though), which allows greater flexibility. However, these features also make Zapier
a bit more difficult to master.
This extra power also has a literal cost. Zapier
's free plan is very limited and its paid plans start at $20 per month. On the other hand, IFTTT is completely free, which makes its adoption, even on an experimental basis, painless.