GlockApps tests placement. InbXr reads the list that caused it.

What GlockApps is

GlockApps runs seed-list placement tests: it sends a test email to a group of seed addresses across major ISPs and reports which ones landed in the inbox, spam folder, or were rejected. If you want to know how one specific email is placing right now, GlockApps gives you a clean answer.

What GlockApps does well

• Seed-list testing across Gmail, Yahoo, Outlook, and more
• Placement breakdown by ISP
• Sender score aggregation
• Content-based spam trigger analysis

Signal coverage

InbXr reads 7 Inbox Signals across 100 weighted points. GlockApps covers:

Signal 04 · Domain Reputation (partial, seed-based)

What GlockApps doesn't read

• Signal 01 · Bounce Exposure (no list verification)
• Signal 02 · Engagement Trajectory (no MPP detection)
• Signal 03 · Acquisition Quality (no cohort reading)
• Signal 05 · Spam Trap Exposure (no dormancy reading)
• Signal 06 · Authentication Standing (surface-level only)
• Signal 07 · Decay Velocity (no score history)

Side by side

When GlockApps is enough

If you want a single-send placement report before launching a big campaign, GlockApps gives you the definitive answer in minutes.

When you need InbXr instead

If you want to know WHY a campaign placed the way it did, and what to fix so the next one doesn't have the same problem, placement alone isn't actionable. The 7 signals tell you which upstream condition caused the placement you saw.