Software Alternatives & Startups

PDFMonkey VS Underlayer

Compare PDFMonkey VS Underlayer and see what are their differences

PDFMonkey

Automate your PDF generation.

Rating
0 reviews
Pricing
Open source Freemium Free trial €15 / Monthly (3000 documents, 7 days retention, Load images, fonts, CSS & JS)
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
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, PDFMonkey seems to be more popular. It has been mentioned 1 time since March 2021.

social mentions
1 vs 0
PDF Tools popularity
100% vs 0%
alternatives listed
123 vs 2

Base details

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

PDFMonkey
Underlayer
Website pdfmonkey.io underlayerhq.com
Pricing
Open source Freemium Free trial €15 / Monthly (3000 documents, 7 days retention, Load images, fonts, CSS & JS) Official pricing
Freemium $149 / Monthly Official pricing
Platforms
Make Bubble Automation Zapier +1
—
Company Startup from France · 1 - 9 employees · 2019 Startup from the United Arab Emirates · 1 - 9 employees · 2026
Listed in

About PDFMonkey and Underlayer

In their own words, as submitted to SaaSHub.

PDFMonkey
Underlayer

PDFMonkey is your automation tool perfect for generating a high volume of PDFs. HTML to PDF with our restless API or with various automation tool such as Zapier, Make or Bubble. Link it with thousands of tools to automate your workflow and simplify your PDF management.

Read more about PDFMonkey

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

Features and specs

What each product offers, as listed by its team.

PDFMonkey 4 features
Underlayer 0 features
  • Snippets
    Share code between different templates
  • Direct generation
    Generate a PDF when updated informations
  • XML embedding
    Insert XML inside the PDF and generate a PDF 3-A compatible factur-X
  • PDF generation
    PDF generation that you can connect with thousands of tools

No features have been listed yet.

Videos

Walkthroughs and reviews on video.

PDFMonkey 1 video + Add
Underlayer 1 video + Add

PDFMonkey - explained

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
PDFMonkey
Underlayer
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing PDFMonkey and Underlayer.

What makes your product unique?

PDFMonkey's answer

PDFMonkey is a simple PDF generation tool that can make your task easier with automated shipping labels, invoices or any other PDF hassle.

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?

PDFMonkey's answer

PDFMonkey is one of the oldest in the market but also one of the best tool giving advanced features and improved support on automation tools such as Zapier, Make and bubble.

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.

Who are some of the biggest customers of your product?

Underlayer's answer:

it's pre-launching

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 PDFMonkey and Underlayer. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

PDFMonkey no reviews yet
Underlayer no reviews yet
  • 14 Best PDF APIs for Every Business Need
    geekflare.com · Nov 2023

    PDFMonkey helps you with automating the process of PDF generation. Using it, you can effortlessly manage your templates and insert dynamic data in them whenever necessary. Thus, it saves precious time for the...

We have no reviews of Underlayer yet. Be the first one to post

Social recommendations and mentions

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

PDFMonkey 1 mention
Underlayer 0 mentions
  • From PDFMonkey to Aim Monkey: Building internal tools that actually help
    One of the first features I worked on when starting my career was AIM's pdf generation tool. It was time to migrate off of PDF monkey's SaaS product to our own solution. We had to figure a way of maintaining the same templates we used... - Source: dev.to / over 1 year ago

Tracking Underlayer since Sep 2026.

Alternatives to PDFMonkey and Underlayer

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