PlusMinusOne

PM1 is a startup studio that builds engaging mobile consumer apps. That is the short version of PlusMinusOne. Put simply, it is about building software for you when nothing off the shelf fits.

The natural audience is companies with a specific process to automate. Alongside the main category they mention EdTech, Mobile and Video. They are a small team, 11 to 50 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.

PlusMinusOne is based in San Francisco, California and founded in 2019. More on plusminusone.co.

Before you commit, look at portfolio relevance, who owns the code, and how they handle changes. Ask for a trial on your own data, not a canned demo.

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