
LaunchDarkly
ConfigCat
Flagsmith
Unleash
Optimizely
Azure DevOps
Growth Book
In a world where product development teams are pressured to do more with less, Split’s Feature Data Platform™ gives you the confidence to move fast without breaking things.

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

Which is more popular?
Based on our record, Split.io seems to be more popular. It has been mentioned 12 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | split.io | lemlist.com |
| Pricing | ||
| Company | 2015 | Startup from France · 100 - 249 employees · 2018 |
| Listed in |
In their own words, as submitted to SaaSHub.


In a world where product development teams are pressured to do more with less, Split’s Feature Data Platform™ gives you the confidence to move fast without breaking things. Set up feature flags and safely deploy to production, controlling who sees which features and when. Connect every flag to...
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...
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
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Switch It On With Split
More videos
Lemlist Review & Full Walkthrough + Tool For Automating & Personalizing Outreach Emails
More videos
How often each product is chosen within a category, 0–100% relative to the other.


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


Split is yet another powerful feature flag management tool serving customers like EA, Salesforce, and Crunchbase. It might not be suited for cross-channel experiments, but offers highly granular control over your...
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...
Recommendations tracked on public social media and blogs since March 2021.


I added split.io to my Pi-Holes while list but it still crashes. Source: about 4 years ago
If possible can you please ensure that split.io is being allowed through your adblocker? Source: about 4 years ago
Split.io, segment.io, app-measurement.com, ... These domains do not really serve ads, they are used for analytics which one can argue is a privacy issue. But some Android apps just refuse to start if you block some of these domains. Source: about 4 years ago
Tracking lemlist since Mar 2021.
When comparing Split.io and lemlist, you can also consider the following products.

LaunchDarkly is a powerful development tool which allows software developers to roll out updates and new features.
Compare LaunchDarkly to Split.io or lemlist:

Build your own infinitely scalable cold email outreach system with Instantly.
Compare Instantly.ai to Split.io or lemlist:

ConfigCat is a developer-centric feature flag service with unlimited team size, awesome support, and a reasonable price tag.
Compare ConfigCat to Split.io or lemlist:

Apollo’s predictive prospecting, sales engagement, and actionable analytics help the teams to reach its full revenue potential.
Compare Apollo.io to Split.io or lemlist:

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.
Compare Flagsmith to Split.io or lemlist:

Reply.io is an AI-driven sales engagement platform that automates cold outreach through unlimited mailboxes, converts website traffic into booked meetings with AI Chat, and empowers your team to streamline the entire sales process with AI SDRs.
Compare Reply.io to Split.io or lemlist: