Compare EmailLabs.io and mail-tester.com free tiers side by side. Pricing, limits, change history, and risk assessment for developers.
We are not publishing a free-tier verdict for either EmailLabs.io or mail-tester.com. The page we cite for EmailLabs.io states no amount, tier or rate we can read when we last looked, on 2026-10-12. The page we cite for mail-tester.com states no amount, tier or rate we can read when we last looked, on 2026-10-12. We are not comparing the two pricing histories.
A verdict here is not a fixed property of the vendor. A one-off pricing event demotes a vendor while its recorded date falls in the last 180 days and then lapses on its own, with nothing about the vendor having changed; a standing condition — a free tier withdrawn and not restored, a product retired — does not lapse with time. A badge carrying a date states the record it rests on; a badge with no date rests on no record in force.
No recorded pricing changes for EmailLabs.io.
No recorded pricing changes for mail-tester.com.
We do not push notifications. Every change we record is readable the moment it lands, and the JSON answer carries an ETag — send it back as If-None-Match and an unchanged answer costs one 304.
curl https://agentdeals.dev/api/changes?vendor=EmailLabs.io
curl https://agentdeals.dev/pricing-changes/feed.xml?vendor=EmailLabs.io
curl https://agentdeals.dev/api/changes?vendor=mail-tester.com
curl https://agentdeals.dev/pricing-changes/feed.xml?vendor=mail-tester.com