SST

SST is an open-source framework for building full-stack applications. The job it does: designing and building iOS and Android apps.

Who is it for? Mostly businesses launching or rebuilding an app. Alongside the main category they mention Open Source. As a very small company team themselves (1 to 10 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.

SST is based in San Francisco, California. Their site is sst.dev.

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 SST, tell the next buyer what you paid and what surprised you. That is the part of this page we cannot write.