Compare/Head to head

GlockApps vs Warmbox

Same facts, side by side: starting price, free tier, MCP, API and what each one is actually built for.

Starting price

GlockApps

$59/mo Free tier Free trial

GlockApps is a deliverability testing platform that shows where your email lands across Gmail, Outlook, Yahoo and other providers before a campaign goes out. It suits agencies and recruiters running cold email across several domains who need proof of inbox placement, not guesses. There is a free plan with 2 tests, paid plans start at $59/mo on annual billing, and a free trial is offered.

Where GlockApps fits

  • Agencies testing inbox placement before launching client campaigns
  • Recruiters rotating several cold email domains and mailboxes
  • Teams that want DMARC reports and blocklist alerts in one place
  • Senders who want Gmail Postmaster data kept longer than Google keeps it

Warmbox

$15/mo

Warmbox runs automated email warmup to lift sender reputation. The listing floor is $15/mo.

Where Warmbox fits

  • New domains that need a warmup network before cold volume
  • Solo senders who want a dedicated warmup tool under $20/mo
  • Agencies warming many client inboxes on a low per-box bill
  • Teams that already sequence in Instantly and want a second warmup opinion

At a glance

DetailGlockAppsWarmbox
Starting price$59/mo$15/mo
Free tier✓Yes–No
Free trialYesNot on record
MCP server✓Yes–No
Public API✓Yes–No
Listed underDeliverabilityDeliverability

Where they pull apart

GlockApps

Stands out: GlockApps puts seed list placement tests, DMARC reporting, blocklist monitors and a Google Postmaster dashboard in one account, where many warm-up tools only report their own network results. It also runs its own MCP server, so you can start a placement test and compare results from Claude or ChatGPT.

Watch out: Spam test credits are the real limit, so testing many mailboxes on a schedule can push you from Essential to Growth or Enterprise. GlockApps tests and monitors but does not warm up mailboxes, so you still need a separate warm-up tool.

Not the right fit for

  • Anyone who needs mailbox warm-up included
  • Senders who only need a one-off free spam check
  • Teams wanting a done-for-you deliverability service on a self-serve plan

Warmbox

Stands out: $15/mo is the cheapest dedicated warmup listing in this set, below Mailreach's $20/mo and well below Folderly's $79/mo monitor.

Watch out: Warmup is not sending. You still need a sequencer. Results take weeks, and a burned domain will not be saved by a $15 plan alone.

Not the right fit for

  • Buyers who want inbox-placement analytics, not a warmup bot
  • Teams that expect warmup to replace authentication and list hygiene

Pros and cons

GlockApps

  • Seed tests across many providers in one run
  • Free plan with DMARC analytics and 2 tests
  • Own MCP server and documented API
  • Spam test credits run out fast with scheduled tests
  • No mailbox warm-up
  • Published prices shown on annual billing

Warmbox

  • Published $15/mo listing, low for a dedicated warmup network
  • Unbundled from any one sequencer
  • Simple job: reputation, not campaigns
  • Does not send campaigns or host mailboxes
  • Overlap with Instantly and Smartlead bundled warmup
  • Will not rescue a domain with a broken DMARC record

What each one costs

GlockApps

$59/mo

GlockApps has a Free plan at $0 with 2 spam test credits, 10,000 DMARC messages, 5 uptime monitors and 1 IP reputation monitor. Essential costs $59/mo shown on annual billing ($708 a year) and gives 360 spam test credits, 600,000 DMARC messages, 15 uptime monitors, 10 IP reputation monitors and 3 DMARKOFF domains. Growth costs $99/mo on annual billing ($1,188 a year) with 1,080 spam test credits, 1.2 million DMARC messages and 5 Postmaster Tool users. Enterprise, aimed at agencies, costs $129/mo on annual billing ($1,548 a year) with 1,800 spam test credits, 12 million DMARC messages and 10 Postmaster Tool users. Every paid plan includes API access and unlimited DMARC domains, DMARC overage is billed per 100,000 messages, and monthly billing is also offered. The vendor offers a free trial and 2 free tests with no credit card. Confirm current terms on the vendor site.

Checked 4 Nov 2026

Warmbox

$15/mo

Warmbox lists from $15/mo for automated email warmup. Confirm live per-mailbox versus flat pricing and any volume packs on the vendor pricing page. Confirm current terms on the vendor site.

Checked 4 Nov 2026

Common questions

Is GlockApps cheaper than Warmbox?
Warmbox starts lower, at $15/mo against $59/mo for GlockApps. That is the entry plan on each side, so the real number depends on seats and the tier you land on.
Can you try GlockApps or Warmbox for free?
GlockApps carries a free tier on our listing. GlockApps offers a free trial.
Does GlockApps or Warmbox have an MCP server?
GlockApps ships a first party MCP server, so an AI assistant can work the product directly.

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Editorial listings, never paid rankings. Prices checked 4 Nov 2026. Confirm current terms on the vendor site. Spot an error?