Piano - Piano lets you quickly learn the piano or other musical instruments using cell phones and tablets, and also contains magic tiles and different mini-games.

Coinramp - The Coinramp Card lets you ‍spend over 10+ cryptocurrencies like cash, online, in-stores and ATM withdrawals. Available in 100+ countries, no ID needed. Anonymous Crypto Cards

Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.

ABcard - ABcard - service allows you to issue an unlimited number of cards to pay for advertising accounts. 3 unique BINs for any work tasks, management of a team of media buyers inside a personal account and complete anonymity when paying for traffic.

Chargebee - Chargebee lets you manage subscriptions and payments at scale, handle custom recurring billing scenarios, reduce subscription churn and simplify accounting.

PST.NET - Virtual payment cards for online shopping and advertising