Flutter

Flutter is a startup company that develops gesture recognition technologies. Put simply, it is about designing and building iOS and Android apps.

It makes the most sense for businesses launching or rebuilding an app. They are a very small team, 1 to 10 people, which usually shapes who they work with. You will probably talk to the people who build it, which is great until you need 24/7 support.

Flutter is based in Palo Alto, California. Their site is flutterapp.com.

Things worth asking about: 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 Flutter well, your review carries weight here.