Add Four

Add Four is a consulting and web application that help companies create, improve and protect their web software. In practice that means designing and building iOS and Android apps.

The natural audience is businesses launching or rebuilding an app. They also list Consulting, so expect those to show up in the feature set.

Add Four is based in Austin, Texas. Their site is addfour.co.

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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