Subscription Payments by involve.me - Launch a subscription business in one day
ApproveIt for Slack - Get approvals in minutes, not days. Right from Slack!
Chargebee - Chargebee lets you manage subscriptions and payments at scale, handle custom recurring billing scenarios, reduce subscription churn and simplify accounting.
Approve app for Zendesk - Any enforceable and auditable approval workflow for Zendesk tickets you can imagine can be easily created using the Approve app.
Quiken - All-in-one client and request management platform.
Approved - The better way to get approvals, right inside of Slack