I was looking for a Tailwind alternative when I saw Pingenerator. The lifetime deal is great value for money when you consider how much you would be paying for Tailwind over a year for multiple accounts.
It's a young app. It's obviously not as sleek as Tailwind is, but Oliver looks like he is driven to make the app the best software out there for Pinterest scheduling.
The best features about Pingenerator is the ability to edit multiple pins at once (this one feature alone made it worth buying the LTD), switch between accounts easily and smart shuffling.

Love it. Keep up the good work Oliver!