Checker Plus for Gmail

Extension

Freedom report

Two barsScore 6.6

Free tierA free tier is on its own pricing page
Runs widely0 of 6 device platforms
DocumentedPlans, terms and facts published

Checker Plus for Gmail is ranked #67 of 143 in email clients on Freedom251, made by Checker Plus for Gmail (Montreal, Quebec, Canada). It runs on Browser extension. There is a free plan.

Checker Plus for Gmail plans and pricing

All plans

Free Free Core extension features · optional extra features unlocked with a contribution jasonsavard.com · 12 Oct 2026

Optional contribution Any amount; monthly contributions are also available Unlocks extra features · monthly contribution unlocks extra features across all extensions jasonsavard.com · 12 Oct 2026

Compared on email clients

Free plan: Yes
App coverage: desktop
Offline access: Yes
Calendar tools: Yes

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The record

Purpose: The extension displays new emails and sender contact photos and lets users get notifications or listen to, read, and delete emails without opening Gmail.
Accounts: It supports multiple Gmail and Google Workspace accounts.
Email actions: From its popup, users can read, archive, mark as read, or delete emails.
Notifications: It offers desktop and voice notifications, with controls for notification sounds, spoken content, and display options.
Labels and filters: Users can monitor selected labels for each account and configure associated sound, notification, and voice settings.
AI compose: Optional AI features can help compose or reply to emails using prompts, and the privacy page says they use Google Gemini.
AI data handling: AI features are off by default; when a user uses reply prompts, the specific email thread is sent through an encrypted proxy to Gemini, and the developer says prompts and data are not logged or stored on its servers.
Privacy: The developer says Google user data is used to display information to the extension user and is not shared with anyone else; some information is stored locally for performance.
Security: The extension uses OAuth 2.0, does not give the developer access to user passwords, and undergoes an annual security assessment required by Google, according to the developer.
Permissions: The listed install permissions for Checker Plus for Gmail are reading and changing data on mail.google.com and displaying notifications.
Browser support: The maker lists Chrome, Edge, Firefox, and Chromium-based browsers including Brave, Vivaldi, Opera, Comet, and Arc as supported.
Mobile support: The maker says there are no cellphone or mobile development projects.
Support: The maker offers an extensive FAQ and personal tech support and says user suggestions help shape new features.
Who it serves: The maker describes voice notifications as useful for multitasking and accessibility, including for visually impaired users.
Price from: Free

Where it ranks on Freedom251

Best Email Clients in 2026#67 of 143

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Sources

jasonsavard.com/Checker-Plus-for-Gmail· checked 12 Oct 2026
jasonsavard.com/wiki/Permissions_and_privacy· checked 12 Oct 2026
jasonsavard.com/wiki/Install_Permissions· checked 12 Oct 2026
jasonsavard.com/wiki/Browser_support· checked 12 Oct 2026
jasonsavard.com/wiki/Other_browsers_and_devices· checked 12 Oct 2026
jasonsavard.com/wiki/How_much_should_I_contribute· checked 12 Oct 2026