Tuta alternatives: 5 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave Tuta: no IMAP, so third-party mail apps are not supported, and search and filtering are basic. We ranked 5 alternatives by how directly each one replaces Tuta, then by reviews, real visits and how recently each app's facts were checked against its own website. Proton Mail currently ranks first.

Quick comparison

#	App	Pricing	Open source	Platforms	Verified facts	Score
1	Proton Mail	Free plan + paid	Yes	Web, Windows, macOS +3	5 of 5	66.5
2	mailbox.org	Paid	No	Web	4 of 4	62.6
3	Posteo	Paid	No	Web	4 of 4	59.6
4	Mailfence	Free plan + paid	No	Web	3 of 3	57.2
5	StartMail	Paid	No	Web, iOS, Android	4 of 4	55.3

1. Proton MailTop pick
Best for: Privacy-minded people and teams who want encrypted email without running servers
Free plan + paidOpen sourceWeb, Windows, macOS, Linux, iOS, Android
66.5
score / 100
Why switch from Tuta
The larger encrypted provider, with IMAP access through Bridge and a wider app bundle.
Pros
End-to-end and zero-access encryption by default
Open-source, audited apps on every major platform
Bundles with Proton VPN, Drive, Calendar and Pass
Cons
Free plan has little storage and one address
Search and third-party integrations are more limited than Gmail
Using desktop clients needs the paid Bridge app
Visit Proton Mail Compare with Tuta Details and reviews
How this score is calculated
Editorial fit ×0.3100
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.1585
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Proton Mail a good Tuta alternative?
Verified facts
5 of 5 verified
Free plan
Yes
Checked Oct 25, 2026proton.me(opens source in a new tab)
Mail Plus price
$4.99/month, or $3.99/month billed yearly
Checked Oct 25, 2026proton.me(opens source in a new tab)
Jurisdiction
Switzerland
Checked Oct 25, 2026proton.me(opens source in a new tab)
Open source
Yes, independently audited
Checked Oct 25, 2026proton.me(opens source in a new tab)
License (web clients)
GPL-3.0
Checked Oct 25, 2026github.com(opens source in a new tab)
2. mailbox.org
Best for: European individuals and businesses who want private email and office tools in one place
PaidWeb
62.6
score / 100
Why switch from Tuta
German provider that supports IMAP and PGP, so you can keep your favourite mail app.
Pros
Low per-user prices with custom domains
Data stored in Germany with PGP options
Includes calendar, cloud storage, office suite and meetings
Cons
Web interface feels dated
No dedicated mobile apps
No free plan
Visit mailbox.org Details and reviews
How this score is calculated
Editorial fit ×0.387
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.1585
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is mailbox.org a good Tuta alternative?
Verified facts
4 of 4 verified
Light plan
€1 per user/month (2 GB)
Checked Oct 25, 2026mailbox.org(opens source in a new tab)
Standard plan
€4 per user/month (20 GB)
Checked Oct 25, 2026mailbox.org(opens source in a new tab)
Free trial
30 days
Checked Oct 25, 2026mailbox.org(opens source in a new tab)
Data location
Germany
Checked Oct 25, 2026mailbox.org(opens source in a new tab)
3. Posteo
Best for: People who want cheap, private email that works with any standard mail app
PaidWeb
59.6
score / 100
Why switch from Tuta
Inexpensive German email with standard IMAP and optional encryption of stored mail.
Pros
Very low fixed price with no ads
Anonymous sign-up and payment
Standard protocols, so any mail and calendar app works
Cons
No custom domains
Plain web interface and no own mobile apps
No free plan
Visit Posteo Details and reviews
How this score is calculated
Editorial fit ×0.377
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.1585
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Posteo a good Tuta alternative?
Verified facts
4 of 4 verified
Price
1 EUR per month
Checked Oct 25, 2026posteo.de(opens source in a new tab)
Storage
4 GB, upgradeable
Checked Oct 25, 2026posteo.de(opens source in a new tab)
Anonymous sign-up
Yes
Checked Oct 25, 2026posteo.de(opens source in a new tab)
Included apps
Email, address book, calendar, notes
Checked Oct 25, 2026posteo.de(opens source in a new tab)
4. Mailfence
Best for: Users who want OpenPGP encryption that works with other PGP tools
Free plan + paidWeb
57.2
score / 100
Why switch from Tuta
OpenPGP-based encrypted email that also works with standard mail clients.
Pros
OpenPGP encryption and signatures built in
Works with standard mail clients via IMAP and POP
Includes calendar, contacts and documents
Cons
PGP key management has a learning curve
Plain, utilitarian interface
Free plan is small
Visit Mailfence Details and reviews
How this score is calculated
Editorial fit ×0.369
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.1585
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Mailfence a good Tuta alternative?
Verified facts
3 of 3 verified
Free plan
1 GB
Checked Oct 25, 2026mailfence.com(opens source in a new tab)
Jurisdiction
Belgium
Checked Oct 25, 2026mailfence.com(opens source in a new tab)
Encryption
OpenPGP
Checked Oct 25, 2026mailfence.com(opens source in a new tab)
5. StartMail
Best for: People who want private email with lots of aliases and simple encryption
PaidWeb, iOS, Android
55.3
score / 100
Why switch from Tuta
Private email with unlimited aliases and IMAP support, based in the Netherlands.
Pros
Unlimited aliases on all plans
Password-protected encrypted email to anyone
IMAP support for any mail app
Cons
No free plan
Fewer features and add-on services than Proton
Stored mail not end-to-end encrypted by default
Visit StartMail Details and reviews
How this score is calculated
Editorial fit ×0.363
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.1585
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is StartMail a good Tuta alternative?
Verified facts
4 of 4 verified
Personal plan
$59.88 per year
Checked Oct 25, 2026startmail.com(opens source in a new tab)
Free trial
7 days
Checked Oct 25, 2026startmail.com(opens source in a new tab)
Aliases
Unlimited
Checked Oct 25, 2026startmail.com(opens source in a new tab)
Jurisdiction
Netherlands
Checked Oct 25, 2026startmail.com(opens source in a new tab)