Okpay started in 2007 is a payment processor offering many features similar to online bank facilities which makes it different from many other payment system at the moment. They have there headoffice in Cyprus, with company offering there service in more then 200 countries with 21 different funding currencies option. According to company stat as till November 2015,they have around 9,00,000 members and company offers exchanges with 53 different payment system which helps in easy funding and withdrawal option to customers.
Sending funds is free although customer receiving payment bears 0.5% of transaction amount with maximum amount being 2.99 Euro.
Find more info related to fees here https://www.okpay.com/en/personal/fees/