NoPass.me - Open-source identity verification
Free-Invoice.co.za - Free Invoice Software | Free online tool that helps small businesses to generate free invoices and manage their contact list. It can be used as an alternative to expensive invoicing software and online invoicing applications
Amazon Cognito - Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.
Invoice.to - A simple & beautiful invoice generator with Stripe & Paypal
Civic Token - Access to identity verification via the blockchain
Invoice Template - Create beautiful looking invoices in seconds