Alternatives
Best Proton alternatives in 2026
Data compiled by Toolradar Updated How we rate
Cite this list: Toolradar, best Proton alternatives 2026, toolradar.com/alternatives/proton
7 direct alternatives to Proton, compared on pricing, features, and best-for use cases. Pick the right replacement without the marketing fluff.
Quick answer
- Mailfence is the top alternative to Proton on our list, followed by Sync.com and Fastmail.
- 5 of the 7 alternatives have a free plan, starting with Mailfence.
- Highest rated: Fastmail, 4.5 out of 5 from 28 ratings, Sep 2026.
- 7 alternatives
- 5 with a free plan
Top 3 alternatives to Proton
Mailfence
#1 Top pickSecure and private email made in Belgium
Starting price
From $2.5 /mo
Cheapest paid plan, monthly, as of October 2026
3.8 /5 across Trustpilot, G2 and Capterra · 184 ratings, Sep 2026
Our take
Best overall
Sync.com
#2Secure cloud storage with end-to-end encryption for privacy and collaboration.
Pricing
Free plan
4.3 /5 on G2 · 56 ratings, Sep 2026
Fastmail
#3Fast, private, and reliable email and calendar hosting for individuals and businesses.
Starting price
From $3 /mo
Cheapest paid plan, monthly, as of October 2026
4.5 /5 across G2 and Capterra · 28 ratings, Sep 2026
Proton vs 7 alternatives
| Tool | Starting price (Oct 2026) | Free plan | Rating |
|---|---|---|---|
 | Price: Free + paid | Free plan: Yes | n/a |
| Price: $2.5/mo | Free plan: Yes | 3.8 out of 5, from 184 ratings across Trustpilot, G2 and Capterra (184) |
| Price: Free + paid | Free plan: Yes | 4.3 out of 5, from 56 ratings on G2 (56) |
| Price: $3/mo | Free plan: No | 4.5 out of 5, from 28 ratings across G2 and Capterra (28) |
 | Price: $3/mo | Free plan: Yes | 4.6 out of 5, from 18 ratings on G2 (18) |
 | Price: Free + paid | Free plan: Yes | 3.5 out of 5, from 41 ratings across G2 and Capterra (41) |
 | Price: Free + paid | Free plan: Yes | 3.9 out of 5, from 9 ratings across G2 and Trustpilot (9) |
 | Price: $1.08/mo | Free plan: No | n/a |
Why people consider alternatives to Proton
Proton offers a suite of privacy-by-default services designed to protect users' digital lives. Founded by scientists at CERN, Proton's mission is to provide an internet that prioritizes freedom and privacy, ensuring that user data belongs…
Teams most often switch away when one of these starts to bite:
- Pricing at scale as usage or premium tiers add up.
- Missing integrations with the rest of your stack.
- Performance or scale limits as your needs grow.
- A specific feature gap you have hit in security.
The 7 alternatives below cover the same core job (security) with different trade-offs.
Proton by the numbers
Toolradar data: Its head-to-head comparison pages had 83 visits in the last 30 days, ranking #5 of 26 tools with 20+ compare-page visits in VPN. As of Oct 2026.
| Metric | Proton | Peer median | Position (1 is best) |
|---|---|---|---|
| Free plan | Yes | 21 of 36 have one | n/a |
| Listed as an alternative to | 5 tools | 5 | #16 of 36 (joint) |
| Compare-page visits, last 30 days | 83 visits | 46 | #5 of 26 tools with 20+ compare-page visits |
Visitors most often compare Proton with Tuta, Fastmail and Mailfence (last 30 days, Oct 2026).
Each position is counted among the tools that have data for that row, as noted under it. All VPN data · How we compute this. Advertising and placement fees are not inputs to any position. Visit counts include visits from every source.
Cite this: Toolradar, “Proton by the numbers”, Oct 2026.
Security leaderboards from Toolradar data
Toolradar ranks Security tools on one measure at a time, only where at least 8 tools have data. As of Oct 2026.
Lowest entry price, plans with no stated unit
Cheapest standard paid plan per month (annual prices divided by 12), read on vendor pages and compared only with tools priced on the same basis.
Counted among 186 tools with no stated price unit, verified price.
| # | Tool | Entry plan |
|---|---|---|
| 1 | HashiCorp Vault | $0.50/mo, billed monthly |
| 2 | Runbox | $0.66/mo, billed yearly |
| 3 | uTerminal | $0.83/mo, billed yearly |
| 4 | Alive | $0.99/mo, billed monthly |
| 5 | Addy.io | $1/mo, billed yearly |
Lowest entry price, per-user plans
Cheapest standard paid plan per month (annual prices divided by 12), read on vendor pages and compared only with tools priced on the same basis.
Counted among 40 tools priced per user, verified price.
| # | Tool | Entry plan |
|---|---|---|
| 1 | Zoho Mail | $1/user/mo, billed monthly |
| 2 | AccessOwl | $2.50/user/mo, billed monthly |
| 3 | Corma | $3/user/mo, billed monthly |
| 3 | Duo Security | $3/user/mo, billed monthly |
| 3 | Fastmail | $3/user/mo, billed monthly |
Lowest entry price, plans with no stated unit (EUR)
Cheapest standard paid plan per month (annual prices divided by 12), read on vendor pages and compared only with tools priced on the same basis.
Counted among 8 tools with no stated price unit, verified price.
| # | Tool | Entry plan |
|---|---|---|
| 1 | MEGA | €4.99/mo, billed monthly |
| 2 | F-Secure | €5.21/mo |
| 3 | Yousign | €9/mo, billed monthly |
| 4 | Copla | €50/mo, billed yearly |
| 5 | Whisper Internet Infra AI Context | €52.73/mo, billed monthly |
Most visited, last 30 days
Distinct visitor sessions on the tool's Toolradar page over the last 30 days, with bots excluded by our analytics. A session counts once however many times it reloads the page.
Counted among 10 tools with 50+ visits.
| # | Tool | Visits |
|---|---|---|
| 1 | Proton VPN | 872 visits |
| 2 | Hide.me | 525 visits |
| 3 | Windscribe VPN | 394 visits |
| 4 | Opera | 326 visits |
| 5 | ZoogVPN | 287 visits |
Most media coverage, last 30 days
Number of articles published in the last 30 days by our tracked media sources that mention the tool.
Counted among 40 tools mentioned in the last 30 days.
| # | Tool | Articles |
|---|---|---|
| 1 | ServiceNow | 39 articles |
| 2 | GitLab | 27 articles |
| 3 | BitGo | 10 articles |
| 4 | ConnectWise | 7 articles |
| 4 | CyberArk | 7 articles |
A position exists only when at least 8 tools have data for that metric. 234 of 725 Security tools have a verified price; the others publish none we could read (often "contact sales"). Advertising and placement fees are not inputs to any position. Visit counts include visits from every source. How we compute this. Cite this: Toolradar, “Security leaderboards”, Oct 2026. Data licensed CC BY 4.0. All Security statistics.
7 alternatives to Proton
Ranked by G2 and Capterra ratings, media mentions, and editor review, plus how directly they replace Proton.
- 1
Mailfence
Free planSecure and private email made in Belgium
3.8 /5 across Trustpilot, G2 and Capterra · 184 ratings, Sep 2026
From $2.50/mo, billed monthly; free plan available
- 2
Sync.com
Free planSecure cloud storage with end-to-end encryption for privacy and collaboration.
4.3 /5 on G2 · 56 ratings, Sep 2026
Free plan available; paid prices not published
- 3
Fastmail
PaidFast, private, and reliable email and calendar hosting for individuals and businesses.
4.5 /5 across G2 and Capterra · 28 ratings, Sep 2026
From $3/user/mo, billed monthly
- 4
Tuta
Free planTurn ON privacy with secure, end-to-end encrypted emails, calendars, and contacts.
4.6 /5 on G2 · 18 ratings, Sep 2026
From $3/mo, billed monthly; free plan available
- 5
Internxt
Free planPrivate by default, secure by design, and free as in freedom cloud storage and privacy suite.
3.5 /5 across G2 and Capterra · 41 ratings, Sep 2026
Free plan available; paid prices not published
- 6
Skiff Mail
Free planPrivate, end-to-end encrypted email that protects your inbox and gives you the power to communicate freely.
3.9 /5 across G2 and Trustpilot · 9 ratings, Sep 2026
Free plan available; paid prices not published
- 7
Posteo
PaidGreen, secure, and ad-free email, calendar, and address book for maximum privacy.
From $1.08/mo, billed yearly
Frequently asked questions
What is the best alternative to Proton?
Based on real-signal scoring (G2 and Capterra ratings, media mentions, and editorial review), the top alternatives to Proton are Mailfence, Sync.com, Fastmail. Each solves the same core job with different trade-offs on pricing, features, and integrations.
Is there a free alternative to Proton?
There is no fully free alternative in this list. Mailfence is freemium: a permanent free tier plus paid plans (Secure and private email made in Belgium).
Why do people look for Proton alternatives?
Common reasons teams switch away from Proton: pricing that scales aggressively, missing integrations with the rest of their stack, performance or scale limits, or a specific feature gap in security. The alternatives on this page solve the same core problem with different trade-offs.
Side-by-side comparisons
In-depth comparison pages for Proton versus each alternative.
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