PTC Sustainability

This is probably the crunch! The most important thing you will need to know about PTC sites!

What is sustainability?

"Sustainability is a characteristic of a process or state that can be maintained at a certain level indefinitely." (wikipedia)

In PTC terms, when a site is sustainable, that means this program can live even and for years. PTC sites charging less money than paying are unsustainable and cannot live forever.

Grossly unsustainable sites are scams.

Sites paying $100 per click, even they are charging more, are scams too. Usually you will receive per each click $0.001$ - $0.01 (standard member), with the very sustainable sites to pay you $0.0025 - $0.005. Sites paying more than $0.005 per ref click (std member) are unsustainable no matter what the advertising rates are or who the owner is. Such sites usually will survive for less than a year (usually 4-10 months), or will change their TOS (very long payment delays etc)

But how can I understand if a site is sustainable?
It is not difficult. You'll need the (user) rate per click, the referral rate per click (std member) and the amount of money site charges advertisers per 1000 clicks. A simple calculation will help you to find if site is sustainable or not:

User rate (per click) + Referral rate (per click) = The amount of money site pays to its members.

Site earnings = Revenues from advertisers - The amount of money site pays to its members.

Example 1: theClickers
Site pays $0.0025 per click and $0.001 per referral click.
The amount of money site pays to its members is: $0.0035 per click (or $3.5/1000 clicks)
Charges: $0.005 per click (or $5/1000 clicks)
Site earnings =$1.5/1000 clicks
Site is sustainable.

Example 2: Zubux
Site pays $0.01 per click and $0.005 per referral click.
The amount of money site pays to its members is: $0.015 per click (or $15/1000 clicks)
Charges: $0.005 per click (or $5/1000 clicks)
Site earnings =-$10/1000 clicks
Site is unsustainable.
And now the question is: "How owner earns money?" The answer is simple: Site is based on premium memberships and referral packs sales. Of course a PTC can have and some banner/text ads, but this is not enough.
Sites charging less money than pay, are ponzi schemes and selling bot referrals in order to survive. A bot referral is not a human. But a robot which will click a few ads and then stop. As a result, you'll not get back the money you invested.
It is not recommended to invest in such sites. Remember that bot sellers are blacklisted by advertisers. It is common sense that advertisers are looking for humans only. No advertisers for a PTC means, no revenue and site will close soon.
Sites losing more than $12-$14 are scams and will live for a couple of weeks only.