Best alternatives to Mail Checker for Proton Mail (2026)
10 Chrome extensions that do a similar job to Mail Checker for Proton Mail, closest first. Each shows real store users, its rating, how recently it was updated and how many permissions it asks for.
Mail Checker for Proton Mail today
Mail Checker for Proton Mail alternatives, compared
- 1
Checker Plus for Gmail™
Get notifications, read, listen to or delete emails without opening Gmail and easily manage multiple accounts.
≈1M users4.7★ from 12.7K ratingsUpdated 4 weeks ago16 permissions- About 125× more users than Mail Checker for Proton Mail
- Asks for more permissions (16 vs 7)
- 2
Gmail Checker - Multi Account Gmail Notifier
Get notifications for multiple Gmail accounts, and read or delete email without opening Gmail
≈9K users4.3★ from 73 ratingsUpdated 18 months ago9 permissions- A similar number of users to Mail Checker for Proton Mail
- Updated less recently
- Asks for more permissions (9 vs 7)
- 3
Checker Plus for Google Calendar™
See your next events, get meeting notifications and snooze events without opening the Google Calendar page!
≈300K users4.4★ from 2.1K ratingsUpdated 2 weeks ago14 permissions- About 38× more users than Mail Checker for Proton Mail
- Asks for more permissions (14 vs 7)
- 4
Checker Plus for Google Drive™
Quickly browse your Google Drive files without opening a webpage and get notifications of modifications to your shared documents
≈30K users4.4★ from 238 ratingsUpdated 4 weeks ago11 permissions- About 3.8× more users than Mail Checker for Proton Mail
- Asks for more permissions (11 vs 7)
- 5
Proton Pass: Free Password Manager
Free and fully encrypted password manager to keep your logins and passwords safe.
≈2M users4.8★ from 6.7K ratingsUpdated 4 days ago10 permissions- About 250× more users than Mail Checker for Proton Mail
- Asks for more permissions (10 vs 7)
- 6
Grammar Checker
Grammar, spelling and style checker. Get suggestions on writing improvements
≈40K users4.2★ from 45 ratingsUpdated 7 months ago1 permissions- About 5.0× more users than Mail Checker for Proton Mail
- Updated less recently
- Asks for fewer permissions (1 vs 7)
- 7
Mail Checker for Outlook™ | Save email to PDF, TXT or HTML
Mail Checker for Outlook™ lets you receive emails, save as PDF, TXT, or HTML, reply, and get notifications.
≈4K users4.3★ from 21 ratingsUpdated 16 months ago10 permissions- About 2.0× fewer users than Mail Checker for Proton Mail
- Updated less recently
- Asks for more permissions (10 vs 7)
- 8
Free Spell Checker for Google Chrome™
Check your grammar, spelling and style. See word and character counts...!
≈30K users4.0★ from 114 ratingsNot updated for 2+ years3 permissions- About 3.8× more users than Mail Checker for Proton Mail
- Updated less recently
- Asks for fewer permissions (3 vs 7)
- 9
Spell Checker for Chrome
Spell Checker extension for Chrome. It's easy to use and fast. This extension supports 25 languages for spell check.
≈100K users3.5★ from 902 ratingsUpdated 12 months ago8 permissions- About 13× more users than Mail Checker for Proton Mail
- Updated less recently
- Asks for more permissions (8 vs 7)
- 10
Proxy-Cheap Proxy Manager
Manage your proxies with ease
≈10K users3.3★ from 32 ratingsUpdated 13 days ago11 permissions- A similar number of users to Mail Checker for Proton Mail
- Asks for more permissions (11 vs 7)
Mail Checker for Proton Mail alternatives: questions
What is the best alternative to Mail Checker for Proton Mail?
By users, the most popular alternative is Proton Pass: Free Password Manager with ≈2M users and a 4.8-star rating. The closest match by what it does is Checker Plus for Gmail™.
Which Mail Checker for Proton Mail alternative has the best rating?
Proton Pass: Free Password Manager has the highest rating of these alternatives with 50+ ratings: 4.8 out of 5 from 6.7K ratings.
Is there a Mail Checker for Proton Mail alternative that asks for fewer permissions?
Grammar Checker asks for 1 permissions, against 7 for Mail Checker for Proton Mail.
How many alternatives to Mail Checker for Proton Mail are there?
We list 10 close alternatives to Mail Checker for Proton Mail on the Chrome Web Store, picked by what they do and ranked by how close they are.
Users and ratings are the figures shown on the Chrome Web Store, re-checked continuously. Alternatives are matched on name, description, category and topic. Browse best-of lists by niche.