When comparing Zapier vs. IFTTT, you’re not exactly comparing equals. IFTTT is free, but comes with some of the complicated issues you’d find with any open-source tool. The number of connections it provides makes it a great choice for folks who want to automate their home and simple data chores, or for small businesses that can trade a little time for the price of a free product. Zapier is a business-oriented tool meant to help speed business processes. That means most of its integrations are made for sales, marketing, and IT. 

Both of these tools build their models on third-party connections, so keeping those connections current and backfilling information when the connections break will present itself as your newest maintenance task. In the long run, you’ll find that refreshing your connection every so often is a small price to pay in exchange for all those manual tasks you no longer have to think about.