GlockApps
Overall Score47/100
3.7Editor Rating
Market Signal 27Email deliverability and inbox placement testing.
Best for: Email senders diagnosing why messages land in spam.
Email Marketing
From $59/moFree plan
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Ranked by Overall Score: our Editor Rating and Market Signal, 50/50. Market Signal uses Ahrefs and Semrush data through September 2026, pulled October 6 to 19, 2026. How we score
1 tool
Email deliverability and inbox placement testing.
Best for: Email senders diagnosing why messages land in spam.