
Proxyclick
SwipedOn
The Receptionist
TractionGuest
Teem
WhosOnLocation
VisitorTrack
Visitor registration that's changing how guests are greeted in companies around the world.

Coassemble
Trainn.co
Build courses by API, drop them into your product with one iframe, and get told who finished. No portal, no learner accounts, priced per course view.

Which is more popular?
Based on our record, Envoy seems to be more popular. It has been mentioned 8 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | envoy.com | underlayerhq.com |
| Pricing | ||
| Company | — | Startup from the United Arab Emirates · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Envoy yet.
Underlayer is headless, API-first training for SaaS products. Instead of sending your users to a separate LMS portal, you generate a course, embed it where they already work, and get every completion sent back to your own systems. How it works Create a course. Generate one from a doc or a prompt...
What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
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 Underlayer yet.
Walkthroughs and reviews on video.
Here's a 2008 GMC Envoy SLT - 10 Year Later Review | For Sale Today $10,880
More videos
Underlayer demo
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Envoy and Underlayer.
Underlayer's answer:
it's pre-launching
Underlayer's answer:
Underlayer is training with no portal. You build a course by API, by MCP, or in the visual builder, and add it to your product with one iframe. Then signed webhooks tell your systems who finished. Learners never create an account or leave your app, and the player uses your theme, so it looks like part of your product. We charge per course view, not per seat, and every price and overage rate is published.
Underlayer's answer:
Most course tools, like Coassemble, Trainn and LearningStudioAI, assume training happens on their own site: learners sign up, log in and get enrolled, and you pay per seat. Underlayer takes the opposite approach:
No learner accounts. You pass in your own user IDs and we track progress against them. Built for developers. A full REST API covers every resource, and an MCP server lets AI agents create and edit courses. Results in your own tools. Signed webhooks send completions to your CRM, your product or your data warehouse. SCORM 1.2 and 2004 export for customers who still need to load courses into an LMS. Public pricing. Plans start at $149/month for 25,000 course views, with unlimited learners and no sales call required.
Underlayer's answer:
SaaS product, customer success and engineering teams who want onboarding, product education or compliance training inside their own app. It also suits platforms that train other people's users, like partner networks, marketplaces and field-ops tools, where a separate LMS login gets in the way.
Underlayer's answer:
Every company putting training in front of its users hit the same wall: the LMS wanted to own the learner. That meant a separate portal, a second login and a per-seat bill for people who never opened a course. We built Underlayer as the layer underneath instead. You keep the product and the user relationship. We handle building the course, playing it and tracking progress, and we stay out of the way.
Underlayer's answer:
Next.js 16 (App Router) with React 19 and TypeScript, Tailwind CSS v4, and Supabase (Postgres with row-level security, Auth and Storage). Claude from Anthropic generates courses with AI. Stripe handles billing and Resend sends email. There is also a remote MCP server with OAuth 2.1 for AI-agent access.
Share your experience with using Envoy and Underlayer. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Envoy is a high-performance distributed proxy written in C++. It can be used as an L4 or L7 load balancer, and is designed for building large distributed service meshes and microservices. It simplifies building...
For free mailroom management software you can fully trust, go to Envoy today. Envoy also has package notifications, automatic reminder software, and mailroom data analytics software.
We have no reviews of Underlayer yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Envoy (https://envoy.com) | Software Eng (Product, Backend) | San Francisco, CA (ONSITE) I'm hiring engineers for a Special Projects team to rapidly iterate and ship experimental products with the goal to define what the future of... - Source: Hacker News / almost 2 years ago
We have been working closely with users of Cerbos such as Envoy, Blockchain.com, Utility Warehouse, 9fin, and Salesroom on this release. We can’t wait to hear more about what you would like to see in future releases - join our Slack... - Source: dev.to / almost 3 years ago
Envoy sells products for managing hybrid workspaces: https://envoy.com/ So hardly an unbiased source. - Source: Hacker News / about 3 years ago
Tracking Underlayer since Sep 2026.
When comparing Envoy and Underlayer, you can also consider the following products.


Coassemble is an all-in-one, online training tool that connects people with the information they need – anytime, anyplace.
Compare Coassemble to Envoy or Underlayer:

SwipedOn is a smart but simple visitor management solution. Our paperless gateway makes connecting people intuitive and easy.
Compare SwipedOn to Envoy or Underlayer:

Trainn is a Customer Education platform for SaaS companies of all sizes to onboard and train customers, at scale, using product training & how-to videos, feature walkthroughs, and a dedicated customer training Academy.
Compare Trainn.co to Envoy or Underlayer:

The Receptionost is a visitor managemnt solution that has visitor logging system to track visitor traffic.
Compare The Receptionist to Envoy or Underlayer:
