Phones handle signatures differently from computers. A signature you set up on a computer is used when you send from that computer (or from the web), not from the phone apps.
iPhone and iPad (Mail)
- Open your signature in QRflick on the phone and press Copy signature.
- Open Settings → Apps → Mail → Signature and paste.
- The formatting is lost at first: shake the phone and tap Undo to bring it back.
Outlook app (iPhone and Android)
Open the app → your profile picture → Settings (gear) → Signature, and paste. Outlook may drop images or colours; if it does, use Copy plain text in QRflick instead.
Gmail app (iPhone and Android)
The app only supports plain text: open Settings → your account → Mobile signature (Android: Signature on mobile) and paste the text from Copy plain text in QRflick.