Head-to-head · Email Deliverability Software
GlockApps vs Warmup Inbox
GlockApps leads on 0 checks, Warmup Inbox on 1, and 6 are even. Who comes out ahead on the 7 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
- Lowest starting priceWarmup Inbox · $15/mo
- Free planboth
GlockApps scores higher on our rubric for email deliverability software: 8.4 against 7.6 out of 10; our editors rank them #2 and #6.
Warmup Inbox is cheaper to start at $15/mo against $59/mo.
GlockApps is the better fit for detailed inbox and spam-filter testing. Warmup Inbox is the better fit for affordable inbox warm-up per mailbox.
- GlockApps fits best
Detailed inbox and spam-filter testing
- Warmup Inbox fits best
Affordable inbox warm-up per mailbox
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Side by side
| Feature | GlockApps 8.4/10 Visit ↗ | Warmup Inbox 7.6/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.4 | 7.6 |
| Ranking | #2 in Email Deliverability Software | #6 in Email Deliverability Software |
| Best for | Detailed inbox and spam-filter testing | Affordable inbox warm-up per mailbox |
| Pricing model | Free plan + paid | Free plan + paid |
| Starting price | $59/mo | $15/mo (best) |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Support | Email, Live chat, Phone, Docs | Email, Live chat |
| Integrations | 7 integrations | 10 integrations |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features GlockApps 5/6 · Warmup Inbox 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 → |
Warmup Inbox is a SaaS platform for automating email warm-up and monitoring deliverability across major email providers. It is designed for sales, marketing, recruiting, and agency teams that need to build sender reputation, track inbox… 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
Warmup Inbox — where it wins
- Automated warm-up through a network of real inboxes
- Monitors inbox, spam, category placement, reputation, and blacklists
- Connects with major mailbox and email-sending providers
Where it doesn't
- The feature set emphasizes warm-up and outbound outreach
- Listed plan rates use annual billing and charge per inbox
- Custom warm-up controls begin with the Pro tier
- GlockApps8.4/10 · Free plan · paid from $59/mo
A focused toolkit for testing inbox placement, authentication, reputation, and spam risk.
Visit GlockAppsFull verdict → - Warmup Inbox7.6/10 · Free plan · paid from $15/mo (annual) · 7-day trial
A focused warm-up and monitoring suite with mailbox integrations, outreach tools, and API access.
Visit Warmup InboxFull verdict →
More comparisons
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- GlockApps vs SenderSignal
- GlockApps vs Warmy
- GlockApps vs Unspam.email
- Validity Engage vs Warmup Inbox
All email deliverability software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
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