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Head-to-head · Email Deliverability Software

GlockApps vs Unspam.email

  • Updated Sep 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score GlockApps #2 in Email Deliverability Software 8.4/10 Free plan · paid from $59/mo Free plan✓ 5 of 6 features Visit GlockApps
Unspam.email #8 in Email Deliverability Software 7.1/10 Free plan · pricing on request Free plan✓ 5 of 6 features Visit 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

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. It never changes our verdict. How we rank.

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
Pros
  • Tests inbox placement across major mailbox providers
  • Scores spam risk across five named filtering engines
  • Monitors SPF, DKIM, DMARC, reputation, and blocklists
  • 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
Cons
  • Free Inbox Insight offer includes two credits
  • Uptime Monitor uses a separate 14-day trial
  • Paid plans start at $59 per month
  • 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
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 →
  1. GlockAppsEmail Deliverability Software 8.4Free plan · paid from $59/mo
  2. Unspam.emailEmail Deliverability Software 7.1Free plan · pricing on request

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

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update