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Head-to-head · Email Warmup Software

Warmup Inbox vs EmailWarmup

  • Updated Sep 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Warmup Inbox #4 in Email Warmup Software 7.6/10 Free plan · paid from $15/mo (annual) · 7-day trial Free plan✓ 0 of 3 features Visit Warmup Inbox
EmailWarmup #7 in Email Warmup Software 7.4/10 Free plan · paid from $19/mo Free plan✓ 3 of 3 features Visit EmailWarmup

Warmup Inbox leads on 0 checks, EmailWarmup on 3, and 1 is even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreWarmup Inbox · 7.6/10
  • Free planboth
  • Most featuresEmailWarmup · 3 of 3

Warmup Inbox scores higher on our rubric for email warmup software: 7.6 against 7.4 out of 10; our editors rank them #4 and #7.

EmailWarmup offers custom warmup schedule; Warmup Inbox doesn't publish it. EmailWarmup offers spam monitoring; Warmup Inbox doesn't publish it. EmailWarmup offers multiple mailboxes; Warmup Inbox doesn't publish it.

Warmup Inbox is the better fit for users wanting free warmup plus deliverability tools. EmailWarmup is the better fit for budget-conscious users wanting feature-rich warmup.

  • Warmup Inbox fits best

    Users wanting free warmup plus deliverability tools

  • EmailWarmup fits best

    Budget-conscious users wanting feature-rich warmup

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 Warmup Inbox 7.6/10 Visit ↗ EmailWarmup 7.4/10 Visit ↗
At a glance
Editor score 7.6 7.4
Ranking #4 in Email Warmup Software #7 in Email Warmup Software
Best for Users wanting free warmup plus deliverability tools Budget-conscious users wanting feature-rich warmup
Pricing model Free plan + paid Free plan + paid
Starting price Not published Not published
Free plan ✓ ✓
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Integrations 10 integrations 3 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Warmup Inbox 0/3 · EmailWarmup 3/3
Custom warmup schedule Not published ✓ (best)
Spam monitoring Not published ✓ (best)
Multiple mailboxes Not published ✓ (best)
Specs
Warmup network Not published Shared
Daily email limit Not published 100 /day
Mailbox providers Not published Not published
Our review
Pros
  • Automated warmup through a network of real inboxes
  • Monitors inbox, spam, category placement, reputation, and blacklists
  • Supports major mailbox providers plus REST API access
  • Free plan supports one mailbox and 10 warmup emails per day.
  • AI replies, configurable ramping, spam rescue, and placement tracking.
  • Supports Gmail OAuth, SMTP, IMAP, threaded replies, and encrypted credentials.
Cons
  • Pricing is charged per inbox, which can increase with mailbox volume
  • Advanced warmup controls begin on the Pro plan
  • Max is required for premium support and unlimited developers API
  • Community limits usage to one mailbox and 10 warmup emails per day.
  • Shared mailbox matching may offer less control than a private warmup network.
  • Some paid tiers require manual access while billing automation is being built.
Our verdict

Warmup Inbox is a web and API platform for sales, marketing, recruiting, and agency teams that send outbound email. It automates warmup through a network of real inboxes while tracking inbox, spam, and category placement. The product also…

Read the review →

EmailWarmup is a web-based email warmup service for founders, agencies, recruiters, sales teams, creators, and other cold-email operators. It connects mailboxes to bidirectional warmup campaigns that generate AI-written subjects and…

Read the review →
  1. Warmup InboxEmail Warmup Software 7.6Free plan · paid from $15/mo (annual) · 7-day trial
  2. EmailWarmupEmail Warmup Software 7.4Free plan · paid from $19/mo

Strengths and trade-offs

  • Warmup Inbox — where it wins

    • Automated warmup through a network of real inboxes
    • Monitors inbox, spam, category placement, reputation, and blacklists
    • Supports major mailbox providers plus REST API access

    Where it doesn't

    • Pricing is charged per inbox, which can increase with mailbox volume
    • Advanced warmup controls begin on the Pro plan
    • Max is required for premium support and unlimited developers API

  • EmailWarmup — where it wins

    • Free plan supports one mailbox and 10 warmup emails per day.
    • AI replies, configurable ramping, spam rescue, and placement tracking.
    • Supports Gmail OAuth, SMTP, IMAP, threaded replies, and encrypted credentials.

    Where it doesn't

    • Community limits usage to one mailbox and 10 warmup emails per day.
    • Shared mailbox matching may offer less control than a private warmup network.
    • Some paid tiers require manual access while billing automation is being built.
  • Warmup Inbox7.6/10 · Free plan · paid from $15/mo (annual) · 7-day trial

    A broad warmup and monitoring toolkit with flexible mailbox connections and API access.

    Visit Warmup InboxFull verdict →
  • EmailWarmup7.4/10 · Free plan · paid from $19/mo

    Feature-rich email warmup with a free plan and paid tiers from $19 per month.

    Visit EmailWarmupFull verdict →

More comparisons

All email warmup software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update