Before launching into the market and reaching consumers, each product goes through many stages of research and production, in which it is important to prove that the product is safe and of good quality, called testing. Testnet is that you participate in the process of testing and evaluating the quality of a certain blockchain and you are called a tester.

These days, serious and quality projects before the product launch eventually they find users to test their product and they will often have a reward to thank those who have shown interest in the project early stages of their project. Must say these days testnet is becoming more popular than airdorp or bounty and the rewards from testnet are well worth your efforts.