Wondering about their loyalty?

Answer questions about what you have noticed. Grayflag separates old habits from recent changes, weighs the signals and gives you an estimate, never a verdict.

Download on the App StoreOpen in the appOpens the Grayflag app if it is installed

A subscription is required to see full results. Prices are shown in the app before you buy. Terms of use

How the loyalty check works

  1. Say what made you wonder, and since when.

  2. Answer questions about communication, phone habits, affection and time together. They adapt to what you say.

  3. Get an estimated infidelity risk, the signals behind it and what could explain them.

Nothing is shared with the other person. What you share is encrypted and you can delete it at any time.

Read the privacy policy