Harvest Helper Subscription

Planning to get a subscription for one of the Helpers but before I do, have a few questions. From what I've noticed during the few months I've been playing there are different types. I'm looking for one that harvests all items, plants/waters/fertilizes crops, cleans up after the critters, and plows up plots and puts down new ones.

I noticed when I've been lucky enough to get a Harvest Helper coupon, it does all those tasks. My questions:
* If we have a subscription and win a coupon, does the coupon extend the time of the subscription? Or, should we wait until the subscription runs out and use any coupons?
* What if there is a subscription sale while we still have time on our current subscription...can we get another and it extends the time on to the current one?

Thanks in advance for advice and answers.

 

The only subscription, that I know of, is for the entire lot, which is so nice. (also harvests cloud rows, which, when you have north of 250, is very helpful!) You can buy individual functions separately, but the monthly (9.99 for us, when on sale) is all of it. Anything you win, or use, or otherwise acquire, extends the function that it affects but not the others. You can absolutely overlap subscriptions, to avoid a lapse in service Happy Farming, good neighbor!

 

The subscription you pay with real money gives all functions. You can buy individual functions with BB and you can also win them. They all start running when you get them.
My advice is to activate coupons when you actually need them, because they are the only ones you can store. All options extends time. If you active coupons to extend time long before you need it, it may happen, that you are fast asleep, while that short coupon wears out. It is better activate it in that morning you notice you need the functions.