Email Verification vs GMass for Gmail™ — Google Workspace

GMass for Gmail™ vs Email Verification

Name: Email Verification
Availability: OnlineOnly
Rating: 4.5 (323 reviews)

Side-by-side comparison · 24 data points

GMass for Gmail™

4.8·6.8kreviews·1,212,112+installs

A powerful mail merge and mass email system for Gmail™.

google_workspaceFree of charge with paid features

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1. Listing metadata

Field-level data

	Email Verification	GMass for Gmail™
Tagline	“Verify and clean email lists directly in Google Sheets with bulk email validation, deliverability statuses, and prepaid credits.”128 chars	“A powerful mail merge and mass email system for Gmail™.”55 chars
Description	3517 / 16000 chars22% used	1706 / 16000 chars11% used
Screenshots	3 images	4 images
Languages
Platforms	Google Workspace	Google Workspace
Developer	Duffco Ventures LLC	GMass, Inc.
Listed	—	—
Last updated	—	—

2. Categories & rankings

Shared categories on the same row · in-category position inline

At a glance

5 metrics · auto-computed

Feature comparison between Email Verification and GMass for Gmail™
Metric	Email Verification	GMass for Gmail™
Rating	4.5 ★	★ 4.8 ★
Total reviews	323	★ 6.8k
Active installs	28,365+	1,212,112+
Free plan	—	★ Yes
Pricing	Not available	Free of charge with paid features

4. App details

Long-form description · keyword frequency

Email Verification

Email Verification helps you verify email addresses directly inside Google Sheets, so you can clean lead lists, reduce bounce risk, and keep outreach data organized without exporting your spreadsheet to another tool. Use the add-on to check individual email addresses, verify small sheets immediately, or submit larger lists as background bulk jobs. Results are written back into your spreadsheet with clear statuses such as deliverable, catch-all, unknown, and not deliverable. # WHAT YOU CAN DO - Verify email addresses from a Google Sheet. - Clean lead lists before sending outreach or importing contacts into a CRM. - Run quick one-by-one checks for smaller sheets. - Submit larger lists as background bulk verification jobs. - See bulk job progress, last checked time, and attention-needed notices in the sidebar. - Import completed bulk results back into the original sheet when the run is finished. - Buy prepaid verification credits inside the add-on. # HOW IT WORKS 1. Install Email Verification from Google Workspace Marketplace. 2. Open a Google Sheet. 3. Choose Extensions > Email Verification > Start. 4. Add email addresses to the first column of your sheet. 5. Click Verification in the add-on sidebar. 6. Review the Status column after the run completes. For lists with 1 to 100 email addresses, EVADDON verifies the list immediately and fills the Status column during the run. For lists with 101 or more email addresses, EVADDON starts a background bulk run. Bulk runs do not drip results into the sheet while they are processing. Reopen the sidebar later, open Bulk Results, and click the completed run to import results into the Status column in the same sheet. If the original sheet changed too much, EVADDON safely falls back to importing results into a new sheet. Bulk verification supports lists up to 250,000 email addresses. # RESULT STATUSES EVADDON returns practical statuses for day-to-day list cleaning: - Deliverable: the address appears safe to contact. - Deliverable (catch-all server): the domain accepts mail broadly, so the address may be higher risk. - The mail server does not respond: the server timed out, throttled the check, or did not respond clearly. - Not deliverable: the address appears invalid or unable to receive mail. No verification service can guarantee that every future email will be delivered. Email systems change, mail servers throttle checks, and sending reputation still matters. Use verification as one layer of your deliverability workflow. # CREDITS AND PRICING New users receive 50 signup credits. One credit equals one email verification. Current prepaid credit packs: - 500 credits for $9 - 2,000 credits for $19 - 5,000 credits for $39 - 10,000 credits for $69 - 25,000 credits for $99 - 50,000 credits for $149 - 100,000 credits for $249 - 500,000 credits for $599 Credits are prepaid and do not require a subscription. # PRIVACY AND PROVIDER USE Email Verification uses Google account access to open the sidebar, read the active spreadsheet data you choose to verify, and write verification results back into your sheet. Email addresses submitted for verification are sent to a third-party email verification provider so deliverability checks can be performed and returned to the add-on. Only verify email lists you have permission to use. # SUPPORT If you need help with installation, billing, credits, account recovery, or verification results, use the support link on this listing or contact support from the add-on website.

Top keywords

email17×3.02%
verification15×2.67%
credits13×2.31%
sheet9×1.60%
0008×1.42%
addresses8×1.42%
bulk8×1.42%
email addresses8×1.42%
lists8×1.42%
results8×1.42%
000 credits7×1.25%
email verification6×1.07%

GMass for Gmail™

A powerful mass email and mail merge system for Gmail™. Simple and powerful email marketing inside Gmail™. *Send email marketing campaigns to thousands of email addresses. *Mail merge with data from Google Sheets™. *Personalize mass emails based on name, email address, and any available columns in Google Sheets™. *Schedule mass emails to be sent later. *Track opens and clicks. *Send follow-up emails to people that opened, clicked, or replied to a previous campaign, or to those that did NOT open, click, or reply. *See all reports right in your Gmail account, under the "GMass Reports" Label. *Create instant recipient lists based on search results. *Send unlimited emails from your Gmail™ account by connecting your GMass account to an external SMTP service like Sendgrid. *And the killer feature - emails can be sent as replies to the last conversation you had with each recipient. Note that the GMass Add-on must be paired with the GMass Chrome extension for full functionality. The Add-on allows you to see statistics on sent emails and add people to your "Unsubscribes" list, but the Chrome extension is needed to launch email campaigns: https://chrome.google.com/webstore/detail/gmass-powerful-mail-merge/ehomdgjhgmbidokdgicgmdiedadncbgf We're always improving GMass. Stay updated with GMass on the web and social media. Website: http://www.gmass.co Blog: http://www.gmass.co/blog Twitter: http://twitter.com/GMassForGmail The website at www.gmass.co has screenshots and explanations of all features. You won't find a better mass email and mail merge tool for Gmail™ than GMass! Any questions? Email our support team at [email protected] or search our blog for answers!

Top keywords

gmass11×4.09%
email8×2.97%
emails6×2.23%
gmail5×1.86%
mass4×1.49%
account3×1.12%

Frequently asked

Common questions about this comparison

Is Email Verification or GMass for Gmail™ cheaper?

GMass for Gmail™ is the cheaper option — it offers a free plan (Free of charge with paid features). Email Verification starts at Not available. Both publish their pricing on the Google Workspace Marketplace; AppRanks mirrors what's listed on each refresh cycle.

Which has better reviews, Email Verification or GMass for Gmail™?

GMass for Gmail™ has the higher average rating (4.8★ from 6,790 reviews) compared to Email Verification (4.5★ from 323 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.

Should I choose Email Verification or GMass for Gmail™?

GMass for Gmail™ holds the higher average rating (4.8★ vs 4.5★). That is the one dimension AppRanks can separate them on here — read both apps' detail pages for the feature breakdown and recent listing changes.

Which is faster to set up, Email Verification or GMass for Gmail™?

Both apps are one-click installs from the Google Workspace Marketplace. GMass for Gmail™ has the deeper published review base (6,790 vs 323), which often — though not always — accompanies better-tested setup docs. AppRanks doesn't measure setup time directly: read the recent reviews on each app's detail page for user-reported install experience.

Which works better for small vs large Google Workspace Marketplace admins?

Email Verification typically suits early-stage and growth-mode teams based on its published review base (323 reviews). GMass for Gmail™ typically suits established teams with steady usage based on its published review base (6,790 reviews). A larger review base generally means the app has been exercised at scale — relevant if you are processing high volume or handling enterprise compliance requirements.

Can I migrate data between Email Verification and GMass for Gmail™?

Migration support varies by app and category. Email Verification and GMass for Gmail™ both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from Email Verification" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.

GMass for Gmail™ vs Email Verification

GMass for Gmail™

1. Listing metadata

2. Categories & rankings

Email Verification

At a glance

AppRanks verdict

3. Activity in the last 90 days

Email Verification · 1 changes

GMass for Gmail™ · 0 changes

4. App details

Frequently asked

Is Email Verification or GMass for Gmail™ cheaper?

Which has better reviews, Email Verification or GMass for Gmail™?

Should I choose Email Verification or GMass for Gmail™?

Which is faster to set up, Email Verification or GMass for Gmail™?

Which works better for small vs large Google Workspace Marketplace admins?

Can I migrate data between Email Verification and GMass for Gmail™?

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