Skip to content

GlockApps vs Warmup Inbox

We give GlockApps a 2.2 GPA and Warmup Inbox a 2.4, out of 4.0. GlockApps grades higher on the free plan. Warmup Inbox grades higher on value for money and platforms. They get the same grade on features and ease of use.

Price, platforms and features side by side. The table says where each price was read and when.

GlockApps

Inbox placement testing with DMARC analytics and uptime monitoring

Free plan · from $59/mo

Warmup Inbox

Email warm-up through a network of real inboxes, priced per inbox

Free trial · from $15/mo

How we grade them

2.2GPAGlockAppsFair2.4GPAWarmup InboxFair
Value for money
CEssential is $59 a month billed yearly ($85 monthly) for 30 spam tests and 50,000 DMARC messages a month. For DMARC alone that's above its listed rivals dmarcian ($19.99) and EasyDMARC ($35.99), but neither runs placement tests on its priced plans.
BBasic is $15 an inbox a month billed yearly ($19 monthly), and the price per inbox falls as you add more. That's the cheapest among its listed warm-up rivals: MailReach is $20 a mailbox, Warmy starts at $49 and InboxAlly at $149.
Free plan and trial
BA real free plan with no card: 10,000 DMARC messages a month for unlimited domains, 5 uptime monitors, 1 IP reputation monitor and 2 spam tests. A small domain can live on the DMARC side; the 2 tests are just a taste.
CNo free plan, but a 7-day trial of any plan with no card. Fine for a look around; after that you pay for each inbox.
Features
CPlacement tests are thorough: inbox, spam or tab by provider, SpamAssassin scores, authentication checks and 50+ blocklists, with DMARC reports for unlimited domains. But it doesn't clean lists or warm up inboxes; it tests and monitors only.
CIt does warm-up fully: more than 30,000 real inboxes replying to 25% to 50% of your emails by plan, spam and tab monitoring, IP warm-up and simple outreach sequences. No list cleaning or DMARC, though, and language and SES or SendGrid warm-up need Pro.
Ease of use
CNo App Store rating on record. A test is simple, as you send your email to its seed list, but DMARC needs a DNS record first, and the reports take some know-how to act on.
CNo App Store rating on record. You connect each mailbox and leave it running before you send, and the settings you'll want, your own templates and topics, sit on Pro.
Platforms and integrations
CWeb only, with Google Postmaster Tools as the one connection listed, plus an API and white-label reports. No phone or desktop app.
BWeb with an API on every plan, working with Gmail, Google Workspace, Outlook, Microsoft 365, Amazon SES, SendGrid and Zoho Mail. No phone or desktop app.
Best forseeing where a campaign lands before it goescheap warm-up for new cold email inboxes

The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: GlockApps and Warmup Inbox. How we grade

Price against what you get

GlockApps starts at $59 a month and scores 2.0 out of 4 on features, ease of use and platforms. Warmup Inbox starts at $15 a month and scores 2.3.

Warmup Inbox scores higher and starts $44 a month lower. Of the other email verification and deliverability tools on the chart, 4 score higher than GlockApps for less, and none scores higher than Warmup Inbox for less.

Features, ease of use and platforms, averaged

C2.0B3.0A4.0$10$20$50$100$200More for lessCosts more, scores moreCosts less, scores lessCosts more, scores lessGlockAppsWarmup Inbox

What paid plans start at, a month (each step along is roughly double) →

  • The best score at each price
  • Has a free plan
  • No free plan
The full chart of email verification and deliverability tools, and the best at every price

Where they differ

  • GlockApps starts at $59 per month, billed annually ($85 monthly). Warmup Inbox starts at $15 per inbox / month, billed annually ($19 monthly).
  • GlockApps has a free plan. Warmup Inbox does not, though it has a free trial.
  • GlockApps also covers dMARC.
  • Warmup Inbox also covers email campaigns and inbox warm-up.
In commonWebPublic API

At a glance

GlockAppsWarmup Inbox
PricingFree planFree trial
Starts at$59 per month, billed annually ($85 monthly)$15 per inbox / month, billed annually ($19 monthly)
Free plan10,000 DMARC messages a month for unlimited domains, 5 uptime monitors, 1 IP reputation monitor and 2 free spam tests, no card required.None
Free trialNone listed7-day free trial of any plan, no credit card required
Web
Made byDeluxe Custom Apps LLCCyberPanda s. r. o.
Price read fromglockapps.comwarmupinbox.com
CheckedOct 18, 2026Oct 18, 2026

Who each one suits

GlockApps

  • Senders who want to see where a campaign lands before it goes out
  • Agencies testing and reporting on many client domains
  • Teams starting DMARC monitoring on a free plan

Warmup Inbox

  • Cold emailers setting up new mailboxes and domains
  • Agencies warming many client inboxes from one dashboard
  • Senders on SendGrid or Amazon SES who need to warm a domain or IP

Worth knowing

GlockApps

  • Annual plans list yearly allowances (Essential: 360 spam tests and 600,000 DMARC messages a year) rather than monthly ones.
  • Annual billing saves about 30%, and monthly prices are much higher: Essential is $85 against $59.
  • DMARC Analytics alone is sold from $55 a month for 1 million messages, billed monthly.
  • GlockApps has no list verification or warm-up; it tests and monitors only.

Warmup Inbox

  • Pricing is per inbox, so costs grow with each mailbox; volume discounts start from the second inbox.
  • Language warm-up, email-platform warm-up and custom templates need Pro or above.
  • It does not verify lists or manage DMARC; DMARC help is limited to a free record generator.

Key features

GlockApps

Inbox Insight
Seed-list tests show inbox, spam or tab placement by provider, with SpamAssassin scores, authentication checks and a scan of 50+ blocklists.
DMARC Analyzer
Collects DMARC reports for unlimited domains with daily reports, a digest and alerts on suspicious activity; overage costs $2 to $7.50 per 100,000 messages.
Uptime and IP reputation monitors
Watches websites, mail servers and sending IPs, and checks SPF, DKIM and DMARC records every two hours.
Google Postmaster integration
Brings Google Postmaster Tools data into the dashboard next to test results.
API and white-label reports
An API for automated testing, projects and folders for managing clients, and branded PDF reports.

Warmup Inbox

Warm-up network
Your mailbox exchanges AI-written emails with more than 30,000 real inboxes, which reply to up to 25% to 50% of them depending on the plan.
Spam and category monitoring
Dashboards show whether warm-up emails land in spam or in a category tab, plus an email reputation check.
Language and ESP warm-up
On Pro and Max, warm up in other languages and through sending platforms such as SendGrid and Amazon SES, with custom templates and topics.
IP warm-up
Warms a dedicated sending IP before volume is raised.
Outreach sequences
Basic cold email sequences are included, so a warmed inbox can send campaigns from the same account.
API and free tools
A developer API on every plan, plus free placement tests, blacklist checks and DMARC and SPF record generators.

Plans

GlockApps

  • Free$0

    2 spam tests, 10,000 DMARC messages a month, 5 uptime monitors and 1 user.

  • Credits Pack 1$16.99

    one-time for 3 spam tests

    Credits valid for 1 month. Pack 2 is $47.99 for 10 tests valid 2 months, and Pack 3 $75.99 for 20 valid 3 months.

  • Essential$59

    per month, billed annually ($85 monthly)

    30 spam tests and 50,000 DMARC messages a month, 15 uptime monitors, 10 IP reputation monitors and 3 DMARKOFF domains, for one user.

  • Growth$99

    per month, billed annually ($142 monthly)

    90 spam tests and 100,000 DMARC messages a month, 25 uptime monitors, 20 IP reputation monitors and 5 users.

  • Enterprise$129

    per month, billed annually ($185 monthly)

    For agencies: 150 spam tests and 1 million DMARC messages a month, 30 uptime monitors and 10 users.

  • CustomCustom

    A plan built to order for large senders.

Warmup Inbox

  • Basic$15

    per inbox / month, billed annually ($19 monthly)

    75 warm-up messages a day, reply rate up to 25%, spam and category monitoring, outreach sequences and the API. The per-inbox price falls as inboxes are added.

  • Pro$49

    per inbox / month, billed annually ($59 monthly)

    250 warm-up messages a day, replies up to 45%, your own templates and topics, language and email-platform warm-up, and scheduling.

  • Max$79

    per inbox / month, billed annually ($99 monthly)

    1,000 warm-up messages a day, replies up to 50%, a technical setup check, premium support and unlimited API use.

  • 51+ inboxesCustom

    Quoted pricing with multi-client workspaces, consolidated billing, specialized reports and dedicated onboarding.

Ways to pay less

GlockApps

  • Annual discount

    Save 30% with annual billing

    GlockApps lists a 30% saving on annual plans: Essential is $59 a month paid annually ($708) against $85 billed monthly.

Warmup Inbox

  • Annual discount

    Save 20% with annual billing

    Annual plans are billed once for 12 months: Basic is $15 per inbox a month billed annually against $19 billed monthly.

More comparisons