AltCatalog
Catalog Email services Outlook.com

Alternatives to Outlook.com

Microsoft's consumer mail service

Alt Score

Alt Score · 59

How this alternative ranks. How it works →

Verified coverage 90%54
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

#9 of 12 in Email services

Outlook.com ranks #9 of 12 in Email services, with an Alt Score of 59. It is proprietary, freemium from $1.99/month and available on Windows, macOS, iOS, Android and Web. 9 of 12 checklist rows are verified against a public source.

Most compared with Proton MailTutamailbox.org
Official site Suggest an edit Data history Work on Outlook.com? Claim this page
Who it's for

Individuals who want a free, web-based email account for personal use, including people consolidating multiple inboxes (Gmail, Yahoo, iCloud) in one place.

What you get

A free email inbox with 15 GB of mailbox storage, integrated calendar, contacts, and task management. Includes spam filtering, OneDrive integration for file attachments (5 GB free), and web/mobile access to Word, Excel, and PowerPoint. The free tier is ad-supported; paid Microsoft 365 plans remove ads and add storage.

How it works

Users sign up for a free Outlook.com account (or sign in with an existing Microsoft account) and access mail, calendar, and contacts through the web portal or iOS/Android apps. Additional email accounts from other providers can be connected and managed from the same inbox.

Where Outlook.com stands out

Verified capabilities most alternatives don't have.

Storage (free tier) only 6 of 12 apps

See the full checklist

Why people leave Outlook.com

Dashed reasons are sourced facts; the rest are opinions. Vendors can dispute.

Sign in to add a reason — new reasons go through moderation before appearing.

Ranked alternatives

Ordered by Alt Score. Click any score to see the breakdown.

Sponsored Paid slot. Never affects the ranked order below. Promote here →
01

E2E encrypted email from Switzerland.

GPL-3.0 WindowsmacOSLinuxiOS +2
Alt Score

Alt Score · 96

How this alternative ranks. How it works →

Verified coverage 90%96
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

02

Encrypted German mail with quantum-safe crypto.

GPL-3.0 WindowsmacOSLinuxiOS +2
Alt Score

Alt Score · 93

How this alternative ranks. How it works →

Verified coverage 90%92
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

03

Privacy-focused German mail and office.

Proprietary WebiOSAndroid
Alt Score

Alt Score · 74

How this alternative ranks. How it works →

Verified coverage 90%71
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

04

Green, anonymous German mail for €1/month.

Web
Alt Score

Alt Score · 74

How this alternative ranks. How it works →

Verified coverage 90%71
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

05

Business mail with a real free tier.

Proprietary WebiOSAndroid
Alt Score

Alt Score · 70

How this alternative ranks. How it works →

Verified coverage 90%67
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

06

Fast independent email with masked addresses.

Proprietary WindowsmacOSLinuxiOS +2
Alt Score

Alt Score · 66

How this alternative ranks. How it works →

Verified coverage 90%62
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

07

Apple's mail with Hide My Email.

Proprietary WebiOSmacOS
Alt Score

Alt Score · 59

How this alternative ranks. How it works →

Verified coverage 90%54
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

08

Domain-based email priced by usage, not mailboxes.

Proprietary Web
Alt Score

Alt Score · 59

How this alternative ranks. How it works →

Verified coverage 90%54
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

09

Private email with unlimited aliases from Startpage.

Proprietary Web
Alt Score

Alt Score · 59

How this alternative ranks. How it works →

Verified coverage 90%54
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

10
Hey

Opinionated email workflow from 37signals.

Proprietary WebmacOSWindowsLinux +2
Alt Score

Alt Score · 51

How this alternative ranks. How it works →

Verified coverage 90%46
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

11

Google's free mail with the best search.

Proprietary WebiOSAndroid
Alt Score

Alt Score · 48

How this alternative ranks. How it works →

Verified coverage 90%42
Visibility 10%100

Verified coverage = sourced yes and partial answers in the category checklist. Visibility = relative app-page views on AltCatalog over 30 days, neutral below 500 category views. Payment, votes, and vendor opinions are never score inputs.

Feature comparison

How Outlook.com compares with its alternatives, feature by feature.

Comparing Outlook.com Proton Mail × Tuta × mailbox.org × Posteo × Zoho Mail ×
+ Add app
Fastmail Gmail Hey iCloud Mail Migadu StartMail
Email services checklist Outlook.comProton MailTutamailbox.orgPosteoZoho Mail
Pricing model
Starts at
License
Platforms
E2E encryption
Custom domain support
Storage (free tier)
Aliases included
Calendar & contacts
IMAP/SMTP access
Jurisdiction
Independent audit published
Catch-all addresses
Ad-free
Import from competitors
Anonymous signup
verified pending unknown (?) Click any cell to view its source or propose a value
Sources & verification 14

Every fact and feature listed for Outlook.com is verified against its own pages. Each alternative is sourced on its own page.

FAQ

Yes. Proton Mail, Tuta and Zoho Mail have a free tier or are fully free. Free-tier limits in the comparison table are verified and dated.

Proton Mail and Tuta — every license claim links its source.