The in-house-versus-outsource question is usually framed as a cost comparison, which is the least useful way to look at it. The real variables are how fast you need to start, how much technical depth the product demands, and how much of your own time you can spend managing the work.

An in-house team is the right answer when software is the business and the roadmap is permanent. You get context that compounds and people who care about the product beyond the contract. You also get a hiring cycle measured in months, a management overhead nobody budgets for, and a fixed cost that does not flex when the roadmap does.

An agency is faster to start and broader in skill: a mobile specialist, a designer, a DevOps engineer and a QA lead on the same project without hiring four people. The trade is that context lives partly outside your building, which is manageable with good documentation and fatal without it.

Staff augmentation sits between the two and suits teams that have a technical lead but not enough hands. Whichever model you pick, decide who owns the architecture. Products fail when that answer is nobody.