CardNinja

CardNinja designs and manufactures an ultra-thin wallet that can be attached to smartphones or smartphone cases. Put simply, it is about designing and building iOS and Android apps.

The natural audience is businesses launching or rebuilding an app. Alongside the main category they mention Android, Fashion, Hardware, iOS and Manufacturing. They are a very small team, 1 to 10 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.

CardNinja is based in Santa Clara, California. Their site is cardninja.com.

Before you commit, look at portfolio quality, app store experience, and maintenance terms. Get the renewal terms in writing before the first invoice.

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