A quote that comes back within a day is a red flag rather than good service. An experienced provider will come back with clarifying questions before any number: about users and volumes. A vendor that quotes before understanding the scope is working from a template, and that guess becomes a change request later — at your expense.
Look out for best aso agency any distance between the people you meet and the people who will code. Insist on named engineers in the statement of work, with a provision about substitutions. A provider that talks only about abstract roles and never names people is reserving the right to assign anyone it likes.
Require access to the repository from the start. A partner that shows code only at milestones is asking you to accept a black box. Daily commits reveal how many people are really working far better than a slide deck. This extends to the CI pipeline: if nothing runs automatically, quality claims remain just talk.
Loose contract language around IP is never an accident. The contract must state in plain terms that the code, designs and documentation transfer to your business upon settlement of the relevant invoice. Check also the governing law and how payments are structured: heavy prepayment with no milestone tied to it eliminates the only leverage you have.
Last, angular development services pay attention to how they communicate. Establish how much working-time overlap you will share with your working day, who handles questions and within what time. A few hours of overlap is usually enough; no overlap turns each small question into a lost day. Unclear written communication in the early emails will not improve under delivery pressure.
