
lemlist
Instantly.ai
Outreach.io
Mailshake
SalesLoft
SmartLead.ai
Yesware
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.

Olas
Per business operation, how much of a company runs without a human in the loop - with the evidence behind every number, including what could not be measured.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | reply.io | provek.dev |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the United States · 50 - 99 employees · 2018 | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


Reply is a sales engagement platform that empowers your sales team with AI-powered tools to automate sales outreach, generate leads, and close more deals. From building verified lead lists to crafting personalized sequences and responses, Reply simplifies sales engagement and streamlines your...
Provek measures how much of a business runs without a human in the loop. It looks at each business operation on its own and assigns it a level from evidence, not from what the company claims. Every result is a public passport. It shows the evidence behind each number and says plainly what Provek...
What each product offers, as listed by its team.


Walkthroughs and reviews on video.
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Two robots argue about whether one of them can prove what it is. The second one checks the passport before it pays.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Reply.io and Provek.dev.
Provek.dev's answer:
Anyone can write "AI-powered" on a landing page, and nobody can tell that apart from a business that machines actually run. I wanted a way to check the claim per operation, with the evidence in the open and the method public. Provek is the result. It works as an ERC-8004 validator: the standard gives identity and transport, and the methodology is ours.
Provek.dev's answer:
Python for the measurement and registry, TypeScript with Preact and Vite for the site, Tailwind CSS, Cloudflare Pages for hosting, and ERC-8004 for identity.
Provek.dev's answer:
Provek scores each business operation on its own, from L0 to L5, and never gives one number for the whole company. Evidence is ranked by how hard it would be to fake. When Provek cannot measure something, the passport says why instead of writing a zero. The method is public, so anyone can recompute a verdict from the same inputs.
Provek.dev's answer:
Most claims about AI-run businesses are a line on a landing page. Provek checks them from the outside, anonymously, and shows the evidence next to every number. It also shows its own gaps. If you want a claim you can check, that matters more than a badge.
Provek.dev's answer:
Founders who run parts of their business with AI agents and want a public, checkable record of it. Also buyers, partners and investors who need to tell a real automated operation from marketing copy.
Share your experience with using Reply.io and Provek.dev. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Yes. lemlist, Skylead, La Growth Machine, Dripify, Meet Alfred, We-Connect (Professional and above), Salesflow and Reply.io include email steps alongside LinkedIn actions, and Expandi supports email follow-ups and...
Reply.io is a powerful AI-driven sales engagement platform designed to automate and streamline the outreach process for sales teams. It enables users to manage multichannel campaigns that encompass email, calls, and...
Reply.io is designed to automate your sales sequence across multiple channels, from email to social media. Set and forget personalized outreach campaigns and automate follow-ups for engagement at every point of the...
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