
GitGem
Star Order
GitTags
gitu
DevHunt
Founder Secrets
The Feed
⭐️ Gain more GitHub stars, forks and clients ⭐️

Apollo.io
lemlist
SmartLead.ai
Reply.io
Mailshake
Hunter.io
ZoomInfo
Build your own infinitely scalable cold email outreach system with Instantly.

Which is more popular?
Based on our record, Instantly.ai seems to be more popular. It has been mentioned 21 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | github20k.com | instantly.ai |
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| Company | — | Startup from the United States |
| Listed in |
What each product offers, as listed by its team.


No features have been listed yet.
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
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Instantly Review - Creating A B2B Email Campaign With Instantly
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using GitHub20k and Instantly.ai. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of GitHub20k yet. Be the first one to post
What is the best MCP server for sales teams in 2026? toflow.ai is the most complete MCP server for sales in 2026, covering ICP search, account research, enrichment, sequence enrollment, and outreach across email,...
Instantly.ai is a dynamic AI-powered engagement platform that automates interactions with website visitors in real time through intelligent chatbots. It specializes in qualifying leads, answering inquiries, and...
Instantly.AI focuses on cold email outreach with features that allow businesses to scale their email campaigns efficiently. It helps to increase deliverability, automate follow-ups, and manage outreach campaigns at...
Recommendations tracked on public social media and blogs since March 2021.


Tracking GitHub20k since Jul 2023.
I rebuilt my outreach this week after my reply rate tanked from 4% to <1%. Pulled fresh data from 5+ deliverability blogs (Autobound, MarketingProfs, HyperGen, Instantly), built a Python validator to enforce the new rules across 70+... - Source: dev.to / 6 months ago
Instantly was my final selection given its API was the most robust and well documented. It gave claude full access to campaigns, leads, and sequences while also being capable of sending webhooks on reply and unsubscribe events. - Source: dev.to / 10 months ago
Anywho, the old mailgun system was able to send emails immediately + had images in them. The recommendations we got were to remove ALL images, and instantly.ai has to delay a few minutes between email. So the emails get out slower and no... Source: about 3 years ago
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The prospecting tool to automate multichannel outreach & actually get replies.
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