Approval Donkey

Approval Donkey, from the small New Zealand based company of the same name, is software supporting approval requests submissions using email, online forms, or a preferred app. It helps to turn submissions into tracked and automated workflows. It is free to register and use Approval Donkey as a member only account (which enables only approving workflows.) To set up one's own workflows, approval requests and conditions a Plus account is required.

Approval Donkey starts at $19.