Upstack

Here is Upstack in plain terms. Helping start ups and companies scale their engineering teams with top senior level talent from all over the world. In practice that means designing and building iOS and Android apps.

It makes the most sense for businesses launching or rebuilding an app. Alongside the main category they mention Consulting, iOS, Mobile Apps, Web Design and Web Development. As a small company team themselves (11 to 50 people), they tend to serve customers of a similar scale best. Small vendors mean quick answers and real influence on the roadmap, but check who covers support when someone is out.

Upstack is based in New York, New York and around since 2010. Their site is upstack.co.

Our checklist for this category: portfolio quality, app store experience, and maintenance terms. Ask for a trial on your own data, not a canned demo.

Every review on Revaw shows how it was verified, so if you know Upstack well, your review carries weight here.