Swiss privacy-first tone helper

Make your messages land the way you intend.

Tone Keyboard is a system keyboard for iOS and Android that offers exactly one inline rewrite suggestion based on who you are writing to - without app switching, without chat mode, and without storing your message content.

See how it works
Privacy & compliance

Works wherever you type

Messaging, email, social media, comments, reviews, forms, and other everyday text fields - without leaving the keyboard.

  • System keyboard for iOS and Android
  • No separate composer workflow
  • Inline suggestion, then back to typing

Most writing tools optimize for productivity. Tone Keyboard optimizes for social safety - reducing the everyday stress of “Does this sound rude?” and “Will this escalate?”

Context, not personality

The keyboard uses a relationship context you choose. It does not build behavioural profiles, read your contacts to infer tone, or maintain a conversational memory.

Boss / Authority Client / External Work Peer Dating / Romantic (early) Partner Close Friend Casual Friend Parent / Elder Sibling / Relative Public / Unknown

Context, not personality

The keyboard uses a relationship context you choose. It does not build behavioural profiles, read your contacts to infer tone, or maintain a conversational memory.

Three commitments that define the product

These are not decorative claims. They are operating boundaries reflected in the runtime model, pricing structure, and trust documents.

Commitment

One suggestion only

No choice overload. No assistant mode. Apply one inline suggestion or ignore it and continue typing.

Commitment

Group-safe by default

In group or unknown contexts, suggestions become more neutral and conservative.

Commitment

Privacy by design

No storage of message content. Strict payload minimization. Clear commitments aligned with Swiss nFADP, GDPR, and CCPA positioning.