Cloud service policy

Last updated: October 26, 2026

Whispurr does not sell subscriptions or hosted cloud backup. Personas, local history, encryption, direct chats and calls, linked-device sync, and backup devices work without any cloud service or payment. Network communication and Courier need connectivity.

Backups live on your devices

Make a Mac or another device linked to your account a backup device. It keeps a full copy of your account, so if you lose your phone, your recovery phrase brings your chats back. Without a backup device, keep a working device. Whispurr does not store backups for you.

Courier is delivery, not backup

Courier temporarily stores encrypted changes and media for offline delivery. The current implementation has a 1 GiB (1,073,741,824-byte) per-mailbox queue limit, a 256 KiB (262,144-byte) envelope limit, and at most 64 envelopes per deposit. Request-size limits also apply. Retention is at most 30 days, may be shorter for a configured mailbox, and accepted deliveries may be removed earlier after acknowledgement or authorized pruning.

These are technical ceilings, not an unlimited delivery promise. Each chat requires separate consent before Courier is used for it.

Privacy

The operator can associate pseudonymous Courier records with encrypted resource sizes, timing, and retention. It cannot read encrypted chat content. See the Privacy Policy.

The Apple standard app license applies where applicable. This policy does not remove statutory consumer rights.

Questions: support@whispurr.app.