Zero

Zero, a personal health and fitness platform, is a fasting tracker used for intermittent, circadian rhythm, and custom fasting. In practice that means designing and building iOS and Android apps.

Who is it for? Mostly businesses launching or rebuilding an app. They also list Fitness, Health Care, Mobile Apps, Personal Health and Wellness, so expect those to show up in the feature set. 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.

Zero is based in New York, New York and around since 2016. Their site is zerofasting.com.

Things worth asking about: portfolio quality, app store experience, and maintenance terms. A short pilot with your real data tells you more than any demo.

The facts above come from public company records. The score will come from people like you. Used Zero? Rate it.