Open with the problem you are solving, not a feature list. What kind of user will use it day to day, how many times a day, livewire alternative and how is the job done today? An experienced team who knows what you are trying to achieve will suggest get a project quote simpler way to reach it; someone handed only the requirements as given can only price exactly what you asked for.

Set out the scope as user stories or scenarios: a walk through each important path. Equally important, custom kotlin development write down what you are not building. An explicit list of exclusions removes more friction later than almost anything else in the document. Also mark which items are decided and which may still change — the difference changes the price, and hiding it only hurts you.

Set out your constraints. These include systems you must integrate with, existing databases and their quality, security and compliance rules, traffic expectations, target platforms and stacks you cannot change. Where a date is genuinely fixed, say what depends on it: an experienced team is usually able to rearrange the plan to hit it, but not if the date is a secret.

Define what the word done means for each item. Clear acceptance criteria need not use formal language: a plain-language note setting out what a user should be able to do will do. That one addition shortens acceptance testing by a surprising margin and closes off the usual argument at handover.

Finally, ask for a specific format. Request an itemised estimate, a written list of assumptions, whatever the team considers risky and an optimistic and a pessimistic figure. Treat a wide range as a signal about the brief: it normally identifies exactly which requirement is unclear. Then clarify that area and ask again — the next version is far closer to reality.