iPhone and iPad

Requirements and iOS features of the SipherMail app: Face ID lock, push notifications, the iPad layout and Apple Pencil signatures.

Requirements#

  • iOS or iPadOS 16.4 or later.
  • One app runs on both iPhone and iPad.

Face ID lock#

You can require Face ID (or Touch ID on devices that have it) to open the app.

  1. Open Settings > Biometric Lock.
  2. Turn on Enable biometric lock. The switch will not turn on if Face ID is not set up on the phone.
  3. Pick Auto-lock after, from immediately to never.

Other switches on the same screen:

  • Blur in app switcher hides mail when you switch apps.
  • Lock on account switch asks again when you change accounts.
  • Require on app open always asks when the app opens.

Push notifications#

Allow notifications when the app asks. Choose what to be told about in Settings > Notifications: new mail, VIP contacts only, quiet hours, and whether the sender, subject and preview appear in notifications. If alerts do not arrive, check the phone’s own Settings > SipherMail > Notifications. See Notifications.

iPad layout#

On a large iPad window the app shows three panes side by side: folders, the message list and the reader. A narrower window uses two panes.

Apple Pencil signatures#

With an Apple Pencil you can draw a signature and save it as one of your signatures.

  1. Start a new message on the iPad.
  2. Open the signature picker in the compose screen.
  3. Choose Draw signature and draw with the Pencil.
  4. Save. The drawing is stored as a signature named "Drawn" with the date.

Draw signature appears once you have at least one signature and the iPad detects a stylus. See Signatures and identities.

Last updated 1 November 2026