GlockApps vs Inbox Booster: Which Should You Choose in 2026?
Both prices below were read from each vendor's own pricing page on the date shown.
Pricing side by side
| Plan | GlockApps | Inbox Booster |
|---|---|---|
| tier 1 | Free — 2 spam test credits, 10,000 DMARC messages, 1 user | $39/mo — Monitor up to 5 sender domains, automated seed list inbox testing, blacklist monitoring |
| tier 2 | $59/mo — 360 spam tests, 600,000 DMARC messages, 1 user | $89/mo — Monitor up to 20 domains, real-time spam trap alerts, DNS authentication audits, priority support |
| tier 3 | $99/mo — 1,080 spam tests, 1.2M DMARC messages, 5 users | $199/mo — Monitor up to 50 domains, multi-client portals, automated email audit reports, API access |
| tier 4 | $129/mo — 1,800 spam tests, 12M DMARC messages, 10 users | — |
read from both vendors' pricing pages · 20 Aug 2026 · how we verify
Choose GlockApps if
- Senders diagnosing a sudden drop in open rates
Choose Inbox Booster if
- Outbound sales teams auditing secondary cold outreach domain deliverability
- Email marketing agencies troubleshooting sudden drops in client open rates
Where each one disappoints
GlockApps
- Teams needing warmup — this tests, it does not warm
Inbox Booster
- 3D CAD engineers modeling mechanical robotics gears
Compiled by Stepan Noianov from both vendors' own sites. Something wrong? Report an inaccuracy.