Short answer: choose a fixed-scope sprint when you can describe what you want built and what done looks like, and choose a dedicated team when the work will keep changing and you want steady engineering capacity month after month. Most projects that go wrong pick the wrong model, not the wrong developers. A vague idea sold as a fixed price creates arguments about scope. A well-defined feature set bought as an open-ended retainer burns money on drift.
This article explains how each model works, what it is good at, where it breaks down and the questions that settle the choice. Prices here are typical ranges only. Your own quote depends on scope and follows a scoping conversation.
How a fixed-scope sprint works
In a fixed-scope sprint, you and the studio agree a written list of features, the screens or endpoints involved and the conditions for acceptance. The studio quotes a price range for that list, the work is split into milestones, and you pay as each milestone is delivered and reviewed. At our studio, a defined MVP of this kind typically costs between $9,500 and $18,500 and takes about 30 to 45 days. A larger multi-platform product built in staged sprints typically runs $25,000 to $65,000 or more over about 8 to 16 weeks. Both depend on scope and on how quickly feedback arrives.
The strength of the model is clarity. You know the cost range before work starts, you can compare it with other quotes, and the spec is the contract. The studio has a reason to keep the build focused, because extra features are a separate conversation.
Where a fixed scope breaks down
The same clarity is the weakness. If the spec is thin, two reasonable people read it differently, and the gap shows up late. If you learn something from your first users and want to change direction halfway through, every change becomes a change request. That is normal and fair, but it can feel slow if you were expecting a flexible partner.
A fixed scope also works poorly when the true unknown is the product itself. If you are still testing whether anyone wants the thing, writing a long spec is guessing in detail. In that case, shrink the scope until you are buying the smallest build that can test your idea. Our article on writing a spec your developers can quote covers how to do that.
How a dedicated team works
A dedicated team is a small group of engineers who work on your product for a monthly fee. You set priorities, usually in a shared backlog, and the team works through them in short cycles and shows you working software regularly. At our studio, a pod of this kind typically costs between $8,500 and $14,000 per month for about 160 hours of senior engineering output, working in your tools. Details depend on the skills you need and the size of the team.
The strength of this model is flexibility. You can reorder the backlog every week, drop a feature that is not working and add one that is. The people who built the product keep learning it, so later work tends to go faster than starting a new vendor from zero.
Where a dedicated team breaks down
The cost is open-ended by design. If nobody owns the priorities on your side, the team will work on whatever is most visible, and you will pay for it. A dedicated team needs a product owner who is available to answer questions and make decisions within a day or so. Without that person, capacity sits idle or goes into the wrong things.
It is also a poor fit for a one-off build with a clear end. You would pay a monthly rate for a project that could have been bounded, and you would carry the risk of scope growth yourself.
Questions that settle the choice
Run through these honestly before you talk to any vendor.
- Can you write down what done looks like? If yes, lean towards a fixed scope. If not, you may need a short discovery step first or a dedicated team.
- Will requirements change as you learn? If you expect frequent changes, a retainer handles them more smoothly than a series of change requests.
- Is there an end date? A launch with a fixed purpose suits a sprint. Ongoing product work suits a team.
- Do you have a decision maker available every week? If not, a retainer is risky.
- Is your budget capped? A hard cap favours a fixed scope, since the range is agreed in advance.
A common path: start fixed, then continue with a team
Many products use both. A first release is built as a fixed-scope sprint, because the goal is clear: get a working product in front of real users. After launch, the questions change. You now have feedback, bug reports and a list of ideas you did not have before. At that point a monthly team often makes more sense than a string of small quotes.
The handover between the two should be boring. The code and accounts belong to you throughout, the repository is in your name, and the documentation written during the sprint becomes the starting point for the team. If a vendor cannot describe that handover, ask why.
What to ask any vendor, whichever model you pick
- Is the scope written down, and who signs it?
- What is paid before anything is delivered?
- Can you see working software every sprint, not only slides?
- Who owns the repository, the cloud accounts and the domain?
- Who actually writes the code, and will they be on your project for its full length?
Be wary of any promise that sounds fixed when the work is not: a firm date on a spec nobody has written is a sales line, not a plan. Honest estimates come with assumptions, and the assumptions are written down.
For a closer look at how we staff a monthly team, see our page on dedicated developer pods, and for how the two models are priced, see pricing and engagement. If you want help deciding, chat on WhatsApp at +1 (929) 450-3261 and tell us what you want to build, who will use it and when you would like to launch.