Generous free tier.
Get started with plenty of storage, aliases, and features at no cost, no trial, no credit card.
Private email. Free to start.
End-to-end encrypted email, hosted in Germany, with 10 GB free. No ads, no scanning, and no AI reading your mail.
No credit card required.
- Germany Servers under GDPR
- No VCs Funded by users, not ads
- Your domain Included on the free plan
- Open source Apps on GitHub, AGPL-3.0
Switch in under 60 seconds
Bring every email with you in one click.
Move years of mail from Gmail, Outlook, Yahoo, or any IMAP account in a single click, and we will pull everything across in the background while you keep working, with nothing left behind and nothing lost in the move.
Import your inbox- Gmail in one click
- Outlook and Yahoo
- Any IMAP account
- Folders preserved
Switch in less than sixty seconds.
With QuickSwitch, it takes two clicks to import all your emails from any provider, so you don't lose any time switching.
Claim your address
No personal information required and completely free, just claim your address and you're good to go.
Migrate instantly
QuickSwitch will import all of your previous emails from Gmail, Outlook, Proton, and any other provider without lifting a finger.
Say hello, privately
Send your email and relax. Mail to other Aster accounts is end-to-end encrypted automatically, and mail to anyone else is encrypted with OpenPGP when they publish a key.
Future-proof encryption
Encrypted today. Still encrypted in 20 years.
Mail between Aster accounts is sealed with hybrid post-quantum encryption, so the inbox you trust today stays unreadable tomorrow, even against attackers with quantum computers.
Encrypt my email- ML-KEM key exchange
- Hybrid with P-256 ECDH
- Zero-access keys
- Open source
features
Built for the privacy-conscious, powered by simplicity.
Open source.
Our apps and our cryptography library are open source for you to read, fork, or submit a pull request.
Free custom domains.
Bring your own domain at no extra cost and send mail from an address that's truly yours.
Always encrypted.
Mail between Aster users is encrypted on your device, and mail you receive from anyone else is encrypted the moment it reaches us, so we can't read your inbox.
No learning curve.
Whether you're sending your first email or your ten thousandth, Aster works the way you expect.
"The UI design is stunning. It's rare to see a privacy tool that actually feels like a high-end, polished app."
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"Been using Aster since beta and the UI is definitely the best out of the other publicly available email clients, plus the bugs that are found get fixed exceptionally fast."
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"Aster Mail is just very simple, the UI is clean and amazing, you can create aliases which I find cool, no other email app does that. The community is nice as well, if something is wrong or there's a bug, you get fast responses."
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"The UI is nice and smooth. I like the focus on security and privacy, and the team actually listens to feedback from the community."
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"Signed up for a 1-year Star plan and joined the Android beta on the same day."
pricing
Simple plans, serious privacy.
Save 19% with annual billing
Free
$0 /mo
Everything you need to get started with private, encrypted email.
Get started free
No credit card required
What's included:
- 10 GB encrypted storage
- 1 custom domain
- 5 email aliases
- End-to-end encryption
- Zero-access architecture
- Tracker & remote-image blocking
Star
$2.42 /mo
Billed $28.99 per year Save $6.89
More storage, more aliases, and up to 5 custom domains.
Get Star
30-day money-back guarantee
Everything in Free, plus:
- 50 GB encrypted storage
- 5 custom domains
- 15 email aliases
- Works with any mail app
- Catch-all email address
- Priority support
Nova
Recommended $7.25 /mo
Billed $86.99 per year Save $20.89
More storage, custom domains, and unlimited aliases.
Get Nova
30-day money-back guarantee
Everything in Star, plus:
- 500 GB encrypted storage
- 30 custom domains
- Unlimited email aliases
- 100 MB attachments
- Folder locking & smart folders
- Connect 5 other mailboxes
Supernova
$14.50 /mo
Billed $173.99 per year Save $41.89
Maximum storage, unlimited everything, and dedicated support.
Get Supernova
30-day money-back guarantee
Everything in Nova, plus:
- 5 TB encrypted storage
- Unlimited custom domains
- 250 MB attachments
- Connect 20 other mailboxes
- Instant alias deletion
- Read receipts
Cancel anytime
WHY PEOPLE SWITCH
The most private inbox, for the lowest price.
How Aster compares to Proton, Tuta, Fastmail, and Gmail on privacy, price, and features.
| RECOMMENDED | | | | | |
|---|---|---|---|---|---|
| Privacy & encryption | |||||
| Encrypted end-to-end by default | Supported | Supported | Supported | Not supported | Not supported |
| Server can't read your mail | Supported | Supported | Supported | Not supported | Not supported |
| Quantum-safe between Aster accounts | Supported | Opt-in | Supported | Not supported | Not supported |
| No AI reads your mail | Supported | Supported | Supported | Supported | Not supported |
| Tracking pixels stripped automatically | Supported | Supported | Supported | Supported | Not supported |
| Control & anti-abuse | |||||
| Sign up without a phone number | Supported | Supported | Supported | Supported | Not supported |
| Send locked emails to anyone | Supported | Supported | Supported | Not supported | Not supported |
| Messages that expire on their own | Supported | Supported | Not supported | Not supported | Supported |
| Open source & jurisdiction | |||||
| Apps are open source (auditable) | Supported | Supported | Supported | Not supported | Not supported |
| Servers in | Germany | Switzerland | Germany | USA | USA |
| Plans & access | |||||
| Free storage | 10 GB | 1 GB | 1 GB | Not supported | 15 GB shared |
| Use your own domain on the free plan | Supported | Not supported | Not supported | Not supported | Not supported |
| No credit card to start | Supported | Supported | Supported | Supported | Supported |
| Entry personal plan | $2.99/mo | $3.99/mo | €3/mo | $5/mo | $1.99/mo |
| Apps & migration | |||||
| Native Android app | Supported | Supported | Supported | Supported | Supported |
| Native desktop apps (Win/Mac/Linux) | Supported | Supported | Supported | Supported | Not supported |
| Third-party mail clients (IMAP/SMTP) | Via Bridge (paid) | Via Bridge (paid) | Not supported | Supported | Supported |
Comparison based on each provider's publicly documented features and policies as of August 2026. Prices show the entry personal plan: Aster's is the monthly rate, and the others are the annual rate. Brand names and logos belong to their respective owners.
The latest of Aster
Product Updates How to use a domain you already own for email If you already own a domain, you can be sending and receiving mail at it this afternoon. Here is what each of the six DNS records does, where to paste it, and how to tell when everything has gone through.
Privacy How to use email aliases An alias is a second address on your account that lands in the inbox you already read, and that you can send from. Here is how to make one, what each alias can do on its own, and why we encrypt the address itself.
Product Updates How to buy your own email domain You can now search for, buy, and start using your own email domain without leaving Aster Mail. This guide walks you through every step and explains what happens behind the scenes, from WHOIS privacy to automatic DNS setup.
Product Updates How to split a large MBOX file Google Takeout hands you one giant MBOX file, often several gigabytes. Here is how to split it into import-ready pieces with Thunderbird and ImportExportTools NG, step by step, without your mail ever leaving your computer.
Product Updates How to use categories and custom categories Aster Mail can sort your inbox into tabs like Inbox, Deals, Social, and Notifications, and let you build custom categories that match mail by sender domain or subject keyword. Here is how to set it all up, and why the sorting never leaves your device.
Security How to set up two-factor authentication Add a second layer of protection to your Aster account with authenticator app based two-factor authentication. Here is how to turn it on, scan the QR code, and keep your backup codes safe.
Privacy What ghost aliases are and how they work Ghost aliases are temporary email addresses that deliver straight into your inbox without exposing your real address, then remove themselves automatically. Here is how they work under the hood.
Product Updates How to import your email into Aster Moving to Aster does not mean leaving your old mail behind. Here is how to bring it over, either by connecting your Outlook or Gmail account, or by importing a file yourself.
Privacy How to export your data Aster lets you download a full copy of your account whenever you like. Here is what an export contains, how to run one, and how to keep the file safe.
Frequently Asked Questions
Yes, and it stays free. The free plan includes 10 GB of storage, end-to-end encryption, aliases, and every app, with no credit card required. If you outgrow it you can upgrade, but you don't have to.
No. Your mail is encrypted on your device before it ever touches our servers, and we don't hold the keys. Even if we wanted to read your inbox, we couldn't. Even if a court told us to, we couldn't.
Yes. Our apps and our aster-crypto library are open source under AGPL-3.0, so you can audit them, fork them, or send us a pull request. Our server code is not public.
You won't get locked out. When you sign up we walk you through your recovery codes, and you can add a recovery email, a recovery phone number, and trusted devices in Settings, so there's always a way back in. We can't reset your password for you, because if we could, so could anyone who pressured us, and that's the whole point.
Web, desktop, and Android today, plus an iOS beta on TestFlight. Whatever you sign in on, your inbox stays in sync.
Yes. One-click mailbox export is built in and free on every plan. Head to Settings and download a standard MBOX file of everything, any time. Aster is open source too, so your data is always yours to take with you.
No. We don't have VC investors pushing us to sell, we're not in acquisition talks, and we have no plans to be. Aster is independent and we'd like to keep it that way.
No. Aster Mail is an encrypted email service from Aster Communications Inc. It is not connected to Aster DEX, the $ASTER token, or any other company that uses the name Aster.
Email built around you, not your data.
End-to-end encrypted and hosted in Germany under EU privacy law, with zero ads, scanning, or AI on your inbox and 10 GB free forever, no card required.
Create my free inbox