I just bought the timer for its support to ifttt

And now I discover that, in addition to paying for the subscription to IFTTT it also needed to pay a subscriber ion for using it that was absolutely not indicated in the product sheet. That is quite unfair, to me.

eee ?

There is a free tier on IFTTT. I think it is limited to only 2 automations per account. As it is not profitable I doubt they advertise it much. If you have more than 2 automations that need IFTTT then I would create extra eWeLink accounts and share the devices involved.
Also the free service Olisto is not something many people have heard of but achieves some of the same things. IFTTT (and Apilio) used to be free though. I wouldn’t be that surprised if Olisto started charging too at some point in the future.