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

Violentmonkey
Greasemonkey
Tampermonkey
Greasy Fork
Database Script Tool
Script Manager – SManager
FireMonkey
An open-source userscript editor for Safari.
Which is more popular?
Based on our record, Instantly.ai should be more popular than Userscripts. It has been mentioned 21 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | instantly.ai | github.com |
| Pricing | — | |
| Company | Startup from the United States | — |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Userscripts yet.
Walkthroughs and reviews on video.
Instantly Review - Creating A B2B Email Campaign With Instantly
More videos
5 Recommended Tampermonkey Userscripts in 2022
More videos
How often each product is chosen within a category, 0–100% relative to the other.


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


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...
We have no reviews of Userscripts yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


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 / 5 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 / 9 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
The looking icon is the Userscripts extensions. https://github.com/quoid/userscripts. - Source: Hacker News / 9 months ago
Hi, I'm Will. I'm 24, autistic, and have OCD tendencies. I'm learning to code and this is my first public project. I’d really appreciate your feedback and encouragement! This project lets me solve some of my OCD problems online. There... - Source: Hacker News / over 2 years ago
You can use userscripts [1] which is a safari extension which allows you to add userscripts, and the author of this work have an userscript [2] that you can use with safari (or any other browser) [1] https://github.com/quoid/userscripts. - Source: Hacker News / over 2 years ago
When comparing Instantly.ai and Userscripts, you can also consider the following products.

Apollo’s predictive prospecting, sales engagement, and actionable analytics help the teams to reach its full revenue potential.
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Violentmonkey is a userscript manager to support running userscripts in web pages.
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The prospecting tool to automate multichannel outreach & actually get replies.
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Customize the way a web page displays or behaves, by using small bits of JavaScript.
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Greasemonkey compatible script manager.
Compare Tampermonkey to Instantly.ai or Userscripts: