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Velt VS Underlayer

Compare Velt VS Underlayer and see what are their differences

Velt

Add powerful real-time and multiplayer features to your product with Velt's easy-to-use collaboration SDK. Integrate comments, live cursors, and more in minutes.

No screenshot yet
Rating
0 reviews
Alternatives Is it good?
Underlayer

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.

Rating
0 reviews
Pricing
Freemium $149 / Monthly
Alternatives Is it good?
Monitask
Employee Monitoring Software with Screenshots, Internet, Activity and Time Tracking sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Velt seems to be more popular. It has been mentioned 12 times since March 2021.

social mentions
12 vs 0
Developer Tools popularity
100% vs 0%
alternatives listed
84 vs 2

Base details

Website, pricing, platforms and company facts side by side.

Velt
Underlayer
Website velt.dev underlayerhq.com
Pricing
Official pricing
Freemium $149 / Monthly Official pricing
Company — Startup from the United Arab Emirates · 1 - 9 employees · 2026
Listed in
Developer Tools Design Tools Product Development Productivity +1
Education E-learning Education / E-Learning

About Velt and Underlayer

In their own words, as submitted to SaaSHub.

Velt
Underlayer

No description of Velt 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...

Read more about Underlayer

Analysis

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

Velt
Underlayer

Overall verdict

  • Velt is a solid choice for developers who want to add real-time collaboration features to their apps quickly without building the infrastructure from scratch. It offers ready-made SDKs and components that significantly reduce development time.

Why this product is good

  • Provides pre-built collaboration components like live cursors, presence, comments, and notifications that can be integrated with minimal code
  • Offers SDKs and APIs designed to save engineering time compared to building real-time collaboration infrastructure in-house
  • Supports popular frameworks such as React, making integration straightforward for modern web apps
  • Handles complex real-time synchronization and scalability concerns on the backend so teams can focus on their core product
  • Includes customizable UI elements that can be styled to match an application's design

Recommended for

  • SaaS teams wanting to add Figma-style multiplayer collaboration to their products
  • Startups and developers looking to ship real-time features quickly without heavy backend work
  • Document editors, design tools, and productivity apps needing live cursors, presence, and commenting
  • Engineering teams that prefer buying proven collaboration infrastructure over building it in-house

No analysis of Underlayer yet.

Videos

Walkthroughs and reviews on video.

Velt 2 videos + Add
Underlayer 1 video + Add

Urotuning Velt Sport Intake, is it worth it?

More videos

  • - Velt OS Quick Review

Underlayer demo

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Velt
Underlayer
100% 100%
Developer Tools
0% 0%
0% 0%
Education
100% 100%
100% 100%
Productivity
0% 0%
0% 0%
E-learning
100% 100%

Questions & Answers

As answered by people managing Velt and Underlayer.

Who are some of the biggest customers of your product?

Underlayer's answer:

it's pre-launching

What makes your product unique?

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.

Why should a person choose your product over its competitors?

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.

How would you describe the primary audience of your product?

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.

What's the story behind your product?

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.

Which are the primary technologies used for building your product?

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.

User comments

Share your experience with using Velt and Underlayer. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Velt 12 mentions
Underlayer 0 mentions
  • Build a Real-Time Excalidraw-like Collaborative Canvas using Velt MCP and Antigravity🎉
    We started with a simple canvas and turned it into a fully collaborative whiteboard. Along the way, we added real-time cursors, presence, comments, notifications, and even voice huddles using Velt. Instead of building sync logic and... - Source: dev.to / 5 months ago
  • Build a Dropbox Paper-Style Collaborative Editor with Next.js and Velt💥
    Velt is a collaboration SDK that lets you add real-time features like comments, presence, and notifications directly into your product. Instead of building backend infrastructure for multi-user sync, conflict resolution, and event... - Source: dev.to / 5 months ago
  • Building a Superhuman-Style Collaborative Email Editor with Next.js and Velt🔥
    Velt lets you skip all of that. You plug it into your app and get comments, presence, notifications, and shared context immediately. You don’t worry about syncing users or handling concurrent updates. Your code stays focused on the UI... - Source: dev.to / 5 months ago

View more

Tracking Underlayer since Sep 2026.

Alternatives to Velt and Underlayer

When comparing Velt and Underlayer, you can also consider the following products.

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