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Card 912 of 9802026-09-27 issue

Observed arrival · 2026-09-27

Underlayer: training inside the product

underlayerhq.com Visit website
Editorial interest 78/100 Selection signal · not a rating of the site

An API and embeddable player for adding courses and learner progress tracking to a SaaS product, without sending users to a separate learning portal.

Landing page captured for the 2026-09-27 issue.
For
SaaS teams embedding customer training
Worth noticing
The listed 39 screen blocks include hotspots, timelines, scenarios, and six question types.

Field notes

The documented flow uses a learner identifier already held by the host product, with the iframe described as retaining course progress and answers. The page also lists webhook events for completions and certificates, plus optional per-screen view events; its pricing language emphasizes course views rather than learner seats. A free sandbox is advertised at 500 course views per month.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
⊠LoginAccess appeared gated
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central

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Nostalgia for an Imaginary Console

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underlayerhq.com

Landing page observed 2026-09-27. The live site may have changed.