GlockApps vs Validity
Side-by-side from the Top 11 ranking of The 11 Best Email Deliverability Tools. Last verified June 15, 2026.
The short answer
GlockApps ranks higher on Top 11 (#1 vs #2) 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
| GlockApps | Validity | |
|---|---|---|
| Top 11 rank | #1 / The 11 Best Email Deliverability Tools | #2 / The 11 Best Email Deliverability Tools |
| Score (out of 9.4) | 9.2 | 9 |
| Best for | Detailed inbox placement testing | Enterprise reputation management |
| Pricing | $$ ($79 to $399/mo) | $$$$ (Custom pricing, est. >$1500/mo) |
| HQ | Hong Kong | Boston, USA |
| Founded | 2011 | 2018 |
GlockApps
Top-tier inbox placement testing with a broad, international seed list and actionable reports.
glockapps.com/Validity
The enterprise standard for reputation data, sender certification, and large-scale list verification.
www.validity.com/Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.