Zipper

Zipper is an IT company that turns simple functions into robust applications without requiring complex code. In practice that means designing and building iOS and Android apps.

The natural audience is businesses launching or rebuilding an app. 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.

Zipper is based in San Francisco, California. Their site is zipper.works.

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.

If you have worked with Zipper, tell the next buyer what you paid and what surprised you. That is the part of this page we cannot write.