Yes, both Appflow.ai and Payvoice offer a Free Trial.
Appflow.ai is designed for Large Enterprises, Medium Business and Small Business.
Payvoice is designed for Medium Business and Small Business.
Pricing for Appflow.ai Starts at $3.88/Month whereas for Payvoice Starts at $49/Month.
Some top alternatives to Appflow.ai includes ChartMogul, ProfitWell, RevenueStory, Zuora Analytics, AppLink.io, Adapty, Sublytics, RevenueCat, InAppStory and Subscriptione.
Some top alternatives to Payvoice includes Confluence, Chargebee, PayWhirl, Stripe Billing, Servicebot, Subill, Billsby, MightyDash, Pricewell and Subscribie.