Software Alternatives & Startups
Register | Login

Spectacle App VS Underlayer

Compare Spectacle App VS Underlayer and see what are their differences

Spectacle App

Move and resize windows with ease.

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?
FlexiQuiz
FlexiQuiz is a powerful online test generator that enables you to create engaging online quizzes, tests, or exams in minutes. Choose from 100's of features to create a customized quiz that meets your objectives for business, education, or fun. 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, Spectacle App seems to be more popular. It has been mentioned 4 times since March 2021.

social mentions
4 vs 0
Window Manager popularity
100% vs 0%
alternatives listed
224 vs 2

Base details

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

Spectacle App
Underlayer
Website spectacleapp.com underlayerhq.com
Pricing —
Freemium $149 / Monthly Official pricing
Company — Startup from the United Arab Emirates · 1 - 9 employees · 2026
Listed in
Window Manager OSX Tools Screenshot Annotation Screenshots +1
Education E-learning Education / E-Learning

About Spectacle App and Underlayer

In their own words, as submitted to SaaSHub.

Spectacle App
Underlayer

Important note: Spectacle is no longer being actively maintained

Read more about Spectacle App

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.

Spectacle App 5 features
Underlayer 0 features
  • User-Friendliness
    Spectacle App offers an intuitive and easy-to-use interface, which allows users to quickly understand and navigate through its features without a steep learning curve.
  • Efficiency
    The app provides keyboard shortcuts for managing window sizes and positions, enhancing workflow efficiency and minimizing the time spent on window management.
  • Customization
    Users can customize the keyboard shortcuts according to their preferences, making the app versatile and adaptable to different working styles.
  • Free to Use
    Spectacle App is available at no cost, providing powerful window management features without any financial barriers.
  • Open Source
    As an open-source project, Spectacle App allows users to contribute to its development and modifications, promoting community collaboration and transparency.

Possible disadvantages

  • Limited Development
    The app is no longer actively maintained, which may result in compatibility issues with newer operating systems or a lack of new features over time.
  • Basic Functionality
    While effective, Spectacle App offers relatively basic functionality compared to some commercial window management tools, which may have more advanced features.
  • No Multi-Monitor Support
    Spectacle App lacks robust support for managing windows across multiple monitors, which can be a limitation for users with complex setups.
  • Potential Bugs
    As an open-source project without ongoing maintenance, users might encounter bugs or glitches that will not be addressed through official updates.

No features have been listed yet.

Videos

Walkthroughs and reviews on video.

Spectacle App 2 videos + Add
Underlayer 1 video + Add

Demo of Spectacle App for Mac

More videos

  • - Spectacle App Showcase: Window Management, Manipulation, & Organization for Mac (2017)

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
Spectacle App
Underlayer
100% 100%
Window Manager
0% 0%
0% 0%
Education
100% 100%
100% 100%
Screenshot Annotation
0% 0%
0% 0%
E-learning
100% 100%

Questions & Answers

As answered by people managing Spectacle App 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 Spectacle App and Underlayer. For example, how are they different and which one is better?

Log in or Post with

Reviews and articles

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

Spectacle App no reviews yet
Underlayer no reviews yet
  • Moom vs Magnet vs Spectacle
    medium.com · Jan 2018

    While custom sizes can only be done with Moom, the predefined window sizes are provided by Magnet and Spectacle out of the box, but can also be configured manually with Moom. It’s also possible to assign keyboard...

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.

Spectacle App 4 mentions
Underlayer 0 mentions

View more

Tracking Underlayer since Sep 2026.

Alternatives to Spectacle App and Underlayer

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

Loading...