«No investment» is a popular search and an honestly answered one rarely. It does make sense, just not the sense people put into it.
What is genuinely free
- Understanding the verticals and picking yours.
- Registering with a network and looking at offers from the inside.
- Studying the audience: reading the chats, learning how people talk there.
- Writing and refining the approach on a dozen manual contacts.
This is not preparation before the start — it is the first stage of the work, and most people skip it.
Where the minimum begins
As soon as you need volume you need separate accounts and proxies. That is not a preference: working from a personal account ends with losing it along with your personal correspondence.
What you pay instead
Time. Manual work at the start is hours a day. Some call that free; price your hour and it becomes the most expensive traffic you can buy.
A sensible order
Start by hand on one account and low volume. Get your own conversion numbers. Only when the setup demonstrably works, put money into volume — then it goes into something proven rather than into hope. What free traffic does and does not give you is in free traffic for affiliates.