Yes, both Proceed.app and Synapse offer a Free Trial.
Proceed.app is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Synapse is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Proceed.app begins at $39/Month, while pricing details for Synapse are unavailable.
Some top alternatives to Proceed.app includes Synapse, Guru, Zoho Wiki, LearnLode Enterprise, TWiki, GoGoWorx, HuForce, XWiki, Zoho Learn and bundleIQ.
Some top alternatives to Synapse includes and Trainual.