
SEMRush
Ahrefs
Serpstat
SE Ranking
SEO PowerSuite
Majestic
Ubersuggest
Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.

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, Moz seems to be more popular. It has been mentioned 50 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | moz.com | underlayerhq.com |
| Pricing | ||
| Company | Startup from the United States · 100 - 249 employees · 2004 | Startup from the United Arab Emirates · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Moz 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.
MOZ vs SEMRush 2019 - Side by Side Comparison: Which SEO Tool is Better?
More videos
Underlayer demo
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Moz 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 Moz 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.


While free tools like Google Trends are excellent starting points, they might not offer the depth of data you need as you grow. If you’re serious about affiliate marketing keyword research, investing in a paid tool...
Moz built the Domain Authority metric that the entire industry adopted. Additionally, Moz Local is purpose-built for businesses managing citations, local listings, and NAP consistency across directories.
Moz provides powerful SEO insights with accurate keyword tracking, site audits, and link analysis. It's an all in one platform that helps improve rankings and understand competitors, making it great for businesses...
We have no reviews of Underlayer yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Ultimately, the Moz DA/PA Checker tool is a powerful diagnostic instrument, not the destination itself. It effectively signals a website's accrued link equity, or its Authority. However, to translate that authority into sustainable... - Source: dev.to / 11 months ago
The Moz API transforms link intelligence into actionable competitive insights. By making Domain Authority, Page Authority, and Spam Score easily accessible and scalable, it empowers SEO professionals to:. - Source: dev.to / 11 months ago
Domain Authority is created by Moz and predicts how likely your website is to rank well in search engine results. - Source: dev.to / about 1 year ago
Tracking Underlayer since Sep 2026.
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Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!
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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.
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Serpstat is the Swiss army knife for automating SEO processes. With a suite of powerful modules, you can track your performance, analyze your competitors, research keywords and backlinks, audit your website, and so much more.
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All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
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