Legal & professional services app development cost

It depends far more on scope than on the sector, and quoting a single figure here would be the least useful thing this page could do. What legal & professional services does decide is the floor: 5 compliance regimes may apply, you will be asked to integrate with roughly 6 systems of record, and 5 distinct roles typically touch the workflow — all of that before a single feature. The calculator below is already set to this sector; answer the rest and it returns a cost range, hours, timeline, team and running costs for your own scope.

Yes, and clients increasingly expect it, but the professional liability changes the engineering. Every AI output needs source attribution, a human review step and an audit record of who accepted what. Retrieval over the firm’s own documents rather than open-ended generation is the pattern that works. Budget $50,000–$120,000 for a properly grounded, evaluated implementation — most of that in retrieval quality and evaluation rather than the model call.

It is a planning estimate, not a quote. The band shown is roughly plus or minus 15–20% for a well-defined scope, and wider while requirements are still moving. It is built from engineering hours per discipline, converted at our blended delivery rate, so the hours are directly comparable to a real proposal line by line — but a firm price needs a technical specification, which is the step after budgeting.

No, deliberately. The headline figure is one-off development cost. Monthly cloud infrastructure, metered vendor fees and annual maintenance are calculated separately and shown alongside it, because they are recurring operating costs rather than capital build cost. Adding them together produces a number that means nothing.