Head-to-head · Email Deliverability Software
GlockApps vs Unspam.email
GlockApps leads on 0 checks, Unspam.email on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreGlockApps · 8.4/10
- Free planboth
GlockApps scores higher on our rubric for email deliverability software: 8.4 against 7.1 out of 10; our editors rank them #2 and #8.
GlockApps is the better fit for detailed inbox and spam-filter testing. Unspam.email is the better fit for email previews and automated deliverability testing.
- GlockApps fits best
Detailed inbox and spam-filter testing
- Unspam.email fits best
Email previews and automated deliverability testing
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Side by side
| Feature | GlockApps 8.4/10 Visit ↗ | Unspam.email 7.1/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.4 | 7.1 |
| Ranking | #2 in Email Deliverability Software | #8 in Email Deliverability Software |
| Best for | Detailed inbox and spam-filter testing | Email previews and automated deliverability testing |
| Pricing model | Free plan + paid | Free plan + paid |
| Starting price | $59/mo | Not published |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Support | Email, Live chat, Phone, Docs | Email, Live chat, Docs |
| Integrations | 7 integrations | 5 integrations |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features GlockApps 5/6 · Unspam.email 5/6 | ||
| Inbox placement monitoring | ✓ | ✓ |
| Sender reputation monitoring | ✓ | ✓ |
| Authentication monitoring | ✓ | ✓ |
| Blocklist monitoring | ✓ | ✓ |
| Spam trap monitoring | Not published | Not published |
| API access | ✓ | ✓ |
| Our review | ||
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| Cons |
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| Our verdict | GlockApps is an email deliverability platform for marketers, agencies, and businesses that need to understand where messages land and why they may be filtered. Its scope covers inbox placement across major mailbox providers, spam-filter… Read the review → |
Unspam.email is an email deliverability platform for marketers, founders, agencies, and product teams. It combines spam testing, inbox placement checks, email previews, screenshots, heatmaps, and DMARC monitoring in a web-based service.… Read the review → |
Strengths and trade-offs
GlockApps — where it wins
- Tests inbox placement across major mailbox providers
- Scores spam risk across five named filtering engines
- Monitors SPF, DKIM, DMARC, reputation, and blocklists
Where it doesn't
- Free Inbox Insight offer includes two credits
- Uptime Monitor uses a separate 14-day trial
- Paid plans start at $59 per month
Unspam.email — where it wins
- Tests spam, authentication, blacklist, content, and HTML issues
- Previews emails across 50+ real clients and devices
- Supports recurring tests, Autopilot, REST API, and MCP access
Where it doesn't
- The Free plan limits inbox placements to 3 per month
- Paid access uses Custom pricing with pay-per-test billing
- The product focuses on testing and monitoring rather than campaign creation
- GlockApps8.4/10 · Free plan · paid from $59/mo
A focused toolkit for testing inbox placement, authentication, reputation, and spam risk.
Visit GlockAppsFull verdict → - Unspam.email7.1/10 · Free plan · pricing on request
A broad testing suite with a useful free plan and custom paid pricing.
Visit Unspam.emailFull verdict →
More comparisons
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- TrueSend vs Unspam.email
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- GlockApps vs SenderSignal
- GlockApps vs Warmup Inbox
- GlockApps vs Warmy
- Validity Engage vs Unspam.email
All email deliverability software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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