Warmy.io VS GitHub City

Compare Warmy.io VS GitHub City and see what are their differences

Rating: 4.9 · 39 reviews
Pricing: Freemium Free trial $49 / Monthly

No screenshot yet

Rating: 0 reviews
Pricing: Open source

InboxAlly

Enterprise Email Warmup. Sender Domain Reputation Repair Tool to get out of spam and see open rates more than double in 4 to 14 days. We engage with your emails to teach mailbox providers not to send your email to the spam or the promotions folder. sponsored

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Warmy.io seems to be more popular. It has been mentioned 5 times since March 2021.

social mentions: 5 vs 0
Email Marketing popularity: 100% vs 0%
alternatives listed: 141 vs 85

Base details

Website, pricing, platforms and company facts side by side.

	Warmy.io	GitHub City
Website	warmy.io	honzaap.github.io
Pricing	Freemium Free trial $49 / Monthly Official pricing	Open source
Platforms	Web	—
Company	Startup from Israel · 100 - 249 employees · 2021	—
Listed in	Email Marketing Email Deliverability Email Productivity Cold Emails +1	Developer Tools Productivity Web App Analytics +1

About Warmy.io and GitHub City

In their own words, as submitted to SaaSHub.

Warmy.io

GitHub City

Warmy.io is a cloud-based SaaS solution for email deliverability and email warmup services. This AI-powered email warmup tool provides a full suite of tools to help businesses and marketers improve their email sender reputation, ensuring emails land in the inbox and not the spam folder. Here’s...

Features and specs

What each product offers, as listed by its team.

Warmy.io 14 features

GitHub City 0 features

Raise your sender reputation
Stay away from spam filters with great reputation of your mailbox and domain
Real mailboxes, real people
Only real people, only real mailboxes, a huge variety of mailbox providers
Authentic behaviour
Your mailbox will behave just like a real human being, with no trace of any software
Same thread conversations
Full conversations in the same thread between different people to show perfect activity
100% automation
You just connect your mailbox, and that's all. We will do the rest for you.
Innovative AI algorithms
Our innovative approach and algorithms are the key to great results
Keep high deliverability rates
Land in the inbox of your prospect, avoid the spam folder, and grow!
Free Email deliverability test
Test where your messages are landing in almost any email provider.
Email template checker
Test your cold email template before sending it to your prospects
Free email signature generator
Get a professional email signature that won't send your emails to spam
Free SPF Record Generator
Increase domain security: Create the perfect SPF record now
Free DMARC Record Generator
Create a secure DMARC record to safeguard your domain against spoofing and phishing threats
Free cold email sequence builder
The more follow-ups in your cold email campaign, the more successful it is.
Email deliverability guide
Implement these tips to make your email channel reliable!

No features have been listed yet.

Videos

Walkthroughs and reviews on video.

Warmy.io 3 videos + Add

GitHub City 0 videos + Add

The Complete Warmy.io Overview 🔥

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100

Warmy.io

GitHub City

100% 100%

0% 0%

100% 100%

0% 0%

100% 100%

User comments

Share your experience with using Warmy.io and GitHub City. For example, how are they different and which one is better?

Reviews and articles

External articles and on-site reviews we used to compare the two products.

Warmy.io 4.9 · 39 reviews

GitHub City no reviews yet

Top 14 Email Warm-Up Tools for B2B SaaS
www.mailwarm.com · Dec 2025

Warmy.io: AI-personalized warm-up messages, topic selection, auto-archive, and automated monitoring. Focuses on safe, global automation and multi-language flows for international teams.
Top 5 Email Warmup Tools in 2026
www.mailwarm.com · Dec 2025

Warmy emphasizes automation and expansive mailbox coverage. It supports incremental sending, reply simulation, and spam recovery, with options to adjust pacing and review mailbox-level results at a glance.
Super helpful
SaaSHub review

· Oct 2025

Warmy provided a real person for a solid one-hour onboarding that got us up and running promptly. Dashboard is easy to use and the options for warming up and plenty of options for maintaining inbox health and placement .

We have no reviews of GitHub City yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Warmy.io 5 mentions

GitHub City 0 mentions

"Email marketing is a powerful tool, but it's only effective if your emails reach the inbox." - Unknown
As professionals in the field, we understand the struggles that come with ensuring your messages land in the right place. But fear not, for Warmy.io is here to help you overcome the challenges of email deliverability! Our cutting-edge... Source: about 3 years ago
Social Media power!
Check http://warmy.io to empower YOUR commercials email deliverability. Source: over 3 years ago
Warming Up a New Domain: A Comprehensive Guide.
However Warmy is number one expert in Email Deliverability, join us and get 7 days free trial warmy.io. Source: over 3 years ago

Tracking GitHub City since Jul 2022.

Alternatives to Warmy.io and GitHub City

When comparing Warmy.io and GitHub City, you can also consider the following products.

Mailwarm
Email warmup tool to avoid spam folder, since 2020 - Backed by Email Deliverability Experts

Compare Mailwarm to Warmy.io or GitHub City:

Mailwarm vs Warmy.io Mailwarm vs GitHub City
CodersRank
The Ultimate Profile For Developers | Turn Your Code Into Your Digital Developer Profile & Get Hired Faster

Compare CodersRank to Warmy.io or GitHub City:

CodersRank vs Warmy.io CodersRank vs GitHub City
Folderly
Folderly is an all-in-one email deliverability platform to supercharge your email performance. Locate, solve, prevent email deliverability pitfalls, and ensure that your emails reach the Inbox folder.

Compare Folderly to Warmy.io or GitHub City:

Folderly vs Warmy.io Folderly vs GitHub City
GitHub Metrics
Customize your profile with various plugins and metrics

Compare GitHub Metrics to Warmy.io or GitHub City:

GitHub Metrics vs Warmy.io GitHub Metrics vs GitHub City
Warmup Inbox
Warmup Inbox is a tool that automates the process of warming up your email inboxes, raising your sender reputation and inbox health automatically.

Compare Warmup Inbox to Warmy.io or GitHub City:

Warmup Inbox vs Warmy.io Warmup Inbox vs GitHub City
GitHubTree
Visualize repo structures in tree view.

Compare GitHubTree to Warmy.io or GitHub City:

GitHubTree vs Warmy.io GitHubTree vs GitHub City