Software Alternatives & Startups

GitHub City VS Warmy.io

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

GitHub City

GitHub Ctiy uses ThreeJS to create a 3D city from your GitHub contributions.

No screenshot yet
Rating
0 reviews
Pricing
Open source
Warmy.io

We don't send emails. We get them seen.

Rating
4.9 · 39 reviews
Pricing
Freemium Free trial $49 / Monthly
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
0 vs 5
Developer Tools popularity
100% vs 0%
alternatives listed
85 vs 141

Base details

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

GitHub City
Warmy.io
Website honzaap.github.io warmy.io
Pricing
Open source
Freemium Free trial $49 / Monthly Official pricing
Platforms —
Web
Company — Startup from Israel · 100 - 249 employees · 2021
Listed in

About GitHub City and Warmy.io

In their own words, as submitted to SaaSHub.

GitHub City
Warmy.io

No description of GitHub City yet.

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...

Read more about Warmy.io

Features and specs

What each product offers, as listed by its team.

GitHub City 0 features
Warmy.io 14 features

No features have been listed yet.

  • 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!

Videos

Walkthroughs and reviews on video.

GitHub City 0 videos + Add
Warmy.io 3 videos + Add

No GitHub City videos yet. You could help us improve this page by suggesting one.

The Complete Warmy.io Overview 🔥

More videos

  • - What is Warmy.io?
  • - DecisiveTalks #17 - Warmy.io with Daniel Shnaider, Founder of Warmy.io

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
GitHub City
Warmy.io
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

User comments

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

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Reviews and articles

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

GitHub City no reviews yet
Warmy.io 4.9 · 39 reviews

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

  • 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 .

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Social recommendations and mentions

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

GitHub City 0 mentions
Warmy.io 5 mentions

Tracking GitHub City since Jul 2022.

  • "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

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Alternatives to GitHub City and Warmy.io

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