
Instantly.ai
Apollo.io
Reply.io
Mailshake
SmartLead.ai
Hunter.io
Expandi.io
The prospecting tool to automate multichannel outreach & actually get replies.

Codio
Enhance student learning by streamlining your coding assignment workflow.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | lemlist.com | assignment-os.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from France · 100 - 249 employees · 2018 | 2022 |
| Listed in |
In their own words, as submitted to SaaSHub.


lemlist is the #1-ranked sales engagement platform on G2, used by 20,000+ B2B companies to run multichannel outbound at scale. It covers the full outbound workflow in a single tool: a 600M+ contact database, waterfall enrichment (80% email find rate across 8 providers), multichannel sequences...
AssignmentOS is the first holistic platform for Higher Education to automate the sending, retrieving, and grading of students’ coding assignments while allowing students to improve their skills with real-world tools & workflows. Coding Bootcamps & Universities from all over the world rely...
What each product offers, as listed by its team.


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.
Lemlist Review & Full Walkthrough + Tool For Automating & Personalizing Outreach Emails
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing lemlist and AssignmentOS.
AssignmentOS's answer:
AssignmentOS provides a platform which automates the sending, retrieving, and grading of students’ assignments via automated grading and GitHub/GitLab-based workflow.
AssignmentOS's answer:
AssignmentOS provides the following to customers: - Open up your courses to more students by reducing the manual workload on lectures and TAs. - Enables TAs to easily give detailed, actionable feedback on submissions. - Enhance student learning experience with real-world tools & workflow.
AssignmentOS's answer:
AssignmentOS is helpful for all types of coding education providers: - Universities offering Computer Science courses - Coding Bootcamps - IT Training & Upskilling Providers - MOOC (Massive Open Online Courses)
Share your experience with using lemlist and AssignmentOS. 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,...
What is the best AI prospecting tool for B2B sales in 2026? The best tool depends on your team's specific situation. toflow.ai is a strong fit for multi-channel outreach across email, LinkedIn, and WhatsApp, and is...
Once you have logged in your account in Lemlist, you can set the number of emails you want to send each day, and the program will automatically begin to send and respond to emails. Lemwarm makes sure to reply to your...
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Mailshake lets you build your professional network through a smart and intuitive approach to cold emailing.
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