Using PayPal

PayPal is the faster, safer way to pay and get paid online, via a mobile device and in store. The service allows people to send money without sharing financial information, with the flexibility to pay using their account balances, bank accounts, credit cards or promotional financing. With 113 million active accounts in 190 markets and 25 currencies around the world, PayPal enables global commerce. PayPal is headquartered in San Jose, Calif. and its international headquarters is located in Singapore. More information about the company can be found at

PayPal also facilitates credit and debit card payments to Coptologia for those without an actual PayPal account.

Using Cryptocurrencies/Coinbase

Bitcoin transactions are secured by military grade cryptography. Nobody can charge you money or make a payment on your behalf.  No extra fees for making an international transfer. Supports the most popular cryptocurrencies.

All Payments

Coptologia Publications website is secured using SHA256 with RSA (closed lock symbol) for all payments.