I have use a free accelerator and it looks like it help me confirm my transaction, I'm not sure it it really did but it increase the sat per byte according to the prompt message from the site. I've been using this one
https://bitaccelerate.com/....you guys, what are your experience on this site?
I have always observe this transaction accelerator for quite some times now and I wonder the kind of free service they offer, at the same I always see testimonials and know whether they are been paid to do so, although I have never tried it before so don't know how it works.
My questions for accelerators is this, what's their gain in performing this for free?
Most accelerators nowadays don't do anything but instead data-mine/ serve ads to you. So they gain adsense eligible traffic for no cost at all. (Minus hosting.)
Real accelerators which are free do not monetarily benefit from offering their services other than brand awareness, well, if that's expressible in money at all. (After all, they're allowing transactions with "less fees" to be confirmed.)
(The only one that i know of that is free and which might actually do something is the one from VIABTC.)
And well, accelerators which ask for money... their businessmodel is self-explanatory (if they aren't scams that is!).