Truelist vs GlockApps

Looking for a GlockApps alternative?

GlockApps is a deliverability testing tool — it tells you where your emails land. Truelist is an email verification platform — it makes sure you're only sending to real addresses in the first place. Different tools, complementary purposes.

check Prevent Bounces at the Source.: GlockApps tests where emails land after you send. Truelist validates addresses before you send — removing invalid, disposable, and risky emails so your campaigns start clean.
check Unlimited Validations.: GlockApps charges per inbox placement test. Truelist offers flat monthly pricing with unlimited email verifications — verify your entire database without worrying about per-test costs.
check Direct ESP Integrations.: Truelist connects directly to Mailchimp, HubSpot, Klaviyo, and more. Validate your lists where they live — no CSV exports required.

Key differences

Feature comparison
	check Truelist	close GlockApps
What It Does	Validates email addresses — checks if they exist, are deliverable, and are safe to send to. Removes bad addresses before you send.	Tests inbox placement — tells you whether your emails land in inbox, spam, or promotions tabs after you send.
Pricing	Flat monthly pricing with unlimited email validations. No per-email charges.	Per-test pricing for inbox placement tests. Costs add up with frequent testing.
ESP Integrations	Direct integrations with Mailchimp, HubSpot, Klaviyo, ConvertKit, and more. Validates lists where they live.	Limited direct integrations. Primarily uses seed lists and test emails to check placement.
Bulk Processing	Verify hundreds of thousands of emails at once via CSV upload or API batch endpoint.	Designed for individual test sends, not bulk list processing. Not a list cleaning tool.
API	Full REST API with SDKs in JavaScript, Python, Ruby, PHP, Go, Java, and .NET. Real-time and batch validation endpoints.	API focused on inbox placement testing and DMARC monitoring. Not designed for email address validation.

Both tools improve deliverability, but at different stages of the email pipeline.

mail GlockApps: Post-send diagnostics: Tests inbox placement (inbox vs. spam vs. promotions), checks authentication (SPF/DKIM/DMARC), and monitors sender reputation. Great for diagnosing delivery problems.
verified Truelist: Pre-send list hygiene: Validates every email address on your list — syntax, domain, mailbox existence, disposable detection, spam trap identification. Ensures you're only sending to real people.
lightbulb Best used together: Clean your list with Truelist first, then use GlockApps to test placement. Many teams use both — Truelist ensures you're sending to valid addresses, GlockApps ensures those sends reach the inbox.
swap_horiz If you only pick one: If your main problem is bounces and invalid addresses, Truelist is the right tool. Validating your list before sending is the single highest-impact thing you can do for deliverability.

Verify your first 1,000 emails free. No credit card required.

Zero-Loss Switch

Don't let sunk costs keep you on an inferior platform. We'll make switching painless.

Dollar-for-Dollar

Match on unused credits

+25% Bonus

Extra validation credits

Migration Help

We import your lists

30-Day Guarantee

Or your first month back

No cap on matched value. Any proof accepted.

What People Say

Find out if Truelist is right for you in under 10 minutes.

Free plan available. No credit card required.