How do you make sure the developer won’t overbill me?

We ask our developers to track the hours they spend on each task in the CodementorX system. If there is a certain time tracking tool you want the developer to use, we can also make it a requirement.

Do keep in mind that top developers take pride in their works, and reputation is extremely important to them. Risking their long-term freelancing career over a few hours of extra charge just isn’t worth it.