Private.Ki Mail
What Private.Ki Mail is
Private.Ki Mail is an email service that encrypts messages between Private.Ki users. Message bodies, subjects and attachments are encrypted on the sender’s device before transmission, then decrypted on the recipient’s device. Each message shows its encryption and signature checks. Mail sent to someone using an outside provider is end-to-end encrypted when that recipient has a PGP key; otherwise, it is delivered normally and marked as not end-to-end encrypted.
The Free plan includes one @private.ki address, encrypted email and messenger, signatures, recipient autocomplete, and search across senders, subjects and addresses. It allows attachments up to 25 MB per file, encrypted on the device before upload. Mail tools include undo send with a 5, 10, 20 or 30 second window, multiple signatures, and Inbox, Sent, Drafts, Archive and Trash folders. The service is available on web, iOS and Android.
Users can export their public key or import another person’s, and PGP-compatible programs can encrypt mail to Private.Ki’s published public key. Account protections include TOTP two-factor authentication and QR device pairing. The maker says it cannot recover a lost passphrase or the key it protects. It also says its servers retain ciphertext and necessary delivery metadata, but no access or connection logs.
Who it suits
Private.Ki Mail suits people who want encrypted email with other Private.Ki users and access through web, iOS or Android. Its public-key options may also suit people who exchange encrypted mail with PGP-compatible programs or recipients who have PGP keys.
What it does well
- Encrypts message bodies, subjects and attachments between Private.Ki users.
- Shows encryption and signature checks for each message.
- Offers undo send windows from 5 to 30 seconds.
- Supports public-key import and export for PGP email.
- Free plan includes web, iOS and Android access.
What to know first
- Free plan attachments are limited to 25 MB per file.
- Plus is planned and not yet on sale.
- The maker says it cannot recover a lost passphrase or protected key.
- The company says it has no independent audit yet.
Limits
The Free plan allows one @private.ki address and attachments up to 25 MB per file. Plus is listed at $5 a month, billed annually, but is planned and not yet on sale.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Plus | $5 a month on a yearly plan; month-to-month costs a little more; indicative and not on sale yet · 50 GB encrypted storage · up to 10 addresses and aliases · 100 MB attachments planned | $5 a month |
| Dedicated | On request · Own Private.Ki server, managed by Private.Ki or run by the customer | On request |
| Free | $0 / month; free plan does not expire · One @private.ki address · 25 MB attachments · standard paired-device allowance | On request |
| Teams | Pricing set per organisation and published at launch; coming soon · Everything in Plus per seat · admin roster · central billing · company domain | On request |
As private.ki lists them, read 8 Oct 2026. The maker's own page has the final word.
Getting started
- Visit the Private.Ki Mail website.
- Choose the Free plan, listed as free, billed monthly.
- Use Private.Ki Mail on the listed web, iOS or Android platforms.
- Create an account and protect it with TOTP two-factor authentication or QR device pairing.
- Import a contact’s public key or export your own if you need PGP email.
Verdict
Choose Private.Ki Mail if you want device-encrypted messages between its users, with public-key tools for PGP email and availability on web, iOS and Android. The Free plan includes one address and attachments up to 25 MB per file. Consider whether you can manage your own recovery key, since the maker cannot restore a lost passphrase or key.
Questions
Is there a free plan?
Yes. Free is listed as free, billed monthly, and includes one @private.ki address.
How much does Plus cost?
Plus is listed at $5 a month, billed annually. It is a planned tier and is not yet on sale.
Which platforms does Private.Ki Mail support?
The listed platforms are web, iOS and Android.
Can it send encrypted email to people outside Private.Ki?
Mail to outside providers is end-to-end encrypted when the recipient has a PGP key. Without one, it is delivered normally and flagged as not end-to-end encrypted.
Can I use it with PGP programs?
Users can export their public key or import another person’s. Programs that speak PGP can encrypt mail to Private.Ki’s published public key.
Can Private.Ki recover a lost passphrase?
No. The maker says it cannot recover a lost passphrase or the key it protects.
Facts from Private.Ki Mail's own pages
- Account protection
- Account security includes TOTP two-factor authentication, QR device pairing and sessions bound to a device key using DPoP. · private.ki, 8 Oct 2026
- Attachment limit
- Attachments are limited to 25 MB per file on the current Free plan and are encrypted on the device before upload. · private.ki, 8 Oct 2026
- Audit status
- The company says it has no independent audit yet. · private.ki, 8 Oct 2026
- Encryption
- Mail bodies, subjects and attachments between Private.Ki users are encrypted on the sender’s device before transmission and decrypted on the recipient’s device. · private.ki, 8 Oct 2026
- End-to-end encryption
- Yes · private.ki, 15 Sept 2026
- External email
- Mail to outside providers is encrypted when the recipient has a PGP key; otherwise it is delivered normally and flagged as not end-to-end encrypted. · private.ki, 8 Oct 2026
- Features
- Mail includes undo send for 5, 10, 20 or 30 seconds, multiple signatures, sender and subject search, and Inbox, Sent, Drafts, Archive and Trash folders. · private.ki, 8 Oct 2026
- Free plan
- Yes · private.ki, 15 Sept 2026
- Integrations
- Users can export their public key or import another person’s public key, and any program that speaks PGP can encrypt mail to Private.Ki’s published public key. · private.ki, 8 Oct 2026
- Intended audience
- The maker describes Teams as intended for organisations and offers a Dedicated deployment on a customer’s own server. · private.ki, 8 Oct 2026
- Metadata
- The maker says its servers store ciphertext and necessary delivery metadata, including usernames, recipients and approximate storage times; it says it keeps no access or connection logs. · private.ki, 8 Oct 2026
- Platforms
- The product is available on the web and Android; the company says its iPhone app is built but not yet listed, and its product page describes iPhone and iPad availability as coming soon. · private.ki, 8 Oct 2026
- Product
- Private.Ki Mail provides end-to-end encrypted email between Private.Ki users, with message encryption and signature checks shown for each message. · private.ki, 8 Oct 2026
- Recovery limit
- Private.Ki says it cannot recover a lost passphrase or the key it protects. · private.ki, 8 Oct 2026
- Security
- The maker identifies Ed25519 device-generated keys, AES-256-GCM message encryption, OpenPGP packaging and OPAQUE sign-in among its cryptographic components. · private.ki, 8 Oct 2026
- Support
- The pricing page lists documentation and email support for Free and priority support for Plus; its help center contains product guides and how-to articles. · private.ki, 8 Oct 2026
Where Private.Ki Mail stands on Freedom251
- Email providers#15 of 28
- Secure Email Providers#15 of 28