OpnSesame

OpnSesame is a Peer-to-Peer communications application. In practice that means designing and building iOS and Android apps.

The natural audience is businesses launching or rebuilding an app. As a small company team themselves (11 to 50 people), they tend to serve customers of a similar scale best. You will probably talk to the people who build it, which is great until you need 24/7 support.

OpnSesame is based in Washington, District of Columbia and around since 2018. More on opnsesame.com.

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.

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