Shake Pay - Mobile bitcoin debit card
Letterflix - Send letters and snail mail online to the USA, Europe, India, or anywhere in the world. Letterflix is the easiest and secure way to send letters and snail mail anywhere in the world from the comfort of your home.
Crypto Celebrities - Crypto Celebrities is a new online platform where blockchain meets gaming, which enables the users to buy, sell, or trade CryptoCelebrity smart control like a collectible item.
DocuPost - Sustainably mail letters, checks & postcards online from 75¢
1inch - A user‑friendly wallet as an entry point to DeFi
Letter to Yourself - Send a physical letter to your future self