Need help with SteadyMind? Email mat.enrique.galicia@gmail.com and I'll get back to you.
Your scores live on your device. If you use iCloud backup for your phone, they're included in that backup like any other app's data. SteadyMind itself has no cloud server.
Email a description of what happened (and a screenshot if you can) to mat.enrique.galicia@gmail.com — include your iOS version, the app version (Settings → About), and which challenge it happened in.