Litmus vs GlockApps
Side-by-side from the Top 11 ranking of The 11 Best Email Deliverability Tools (2026). Last verified June 15, 2026.
The short answer
GlockApps ranks higher on Top 11 (#1 vs #7) for Email marketers and developers improving inbox placement rates. Top-tier inbox placement testing with a broad, international seed list and actionable reports.
At a glance
| Litmus | GlockApps | |
|---|---|---|
| Top 11 rank | #7 / The 11 Best Email Deliverability Tools (2026) | #1 / The 11 Best Email Deliverability Tools (2026) |
| Score (out of 9.4) | 7.9 | 9.2 |
| Best for | Integrated design and deliverability | Detailed inbox placement testing |
| Pricing | $$$ ($199 to $499/mo) | $$ ($79 to $399/mo) |
| HQ | Cambridge, USA | Hong Kong |
| Founded | 2005 | 2011 |
Litmus
A strong email creation and analytics platform with good, integrated deliverability checks.
www.litmus.com/See full entry in The 11 Best Email Deliverability Tools (2026)
GlockApps
Top-tier inbox placement testing with a broad, international seed list and actionable reports.
glockapps.com/See full entry in The 11 Best Email Deliverability Tools (2026)
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.