XenData

XenData is a developer and provider of massively scalable on-premises and public cloud data storage systems. The job it does: 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 Media and Entertainment. They are a small team, 11 to 50 people, which usually shapes who they work with. Small vendors mean quick answers and real influence on the roadmap, but check who covers support when someone is out.

XenData is based in Walnut Creek, California. More on xendata.com.

Things worth asking about: portfolio quality, app store experience, and maintenance terms. Get the renewal terms in writing before the first invoice.

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