IFTTT is indeed a SaaS but I would also classify it as a general purpose tool like Excel. A jack of all trades. Definitely a master of none. Would you use IFTTT

IFTTT is indeed a SaaS but I would also classify it as a general purpose tool like Excel. A jack of all trades. Definitely a master of none. Would you use IFTTT or Pingdom to check your site is up? If people are setting up IFTTT for business critical things, then potentially there is scope for a dedicated SaaS to some of those things.