This site uses two kinds of material: original editorial teaching text and sourced product facts. We keep them separate. A product page does not validate a language-learning outcome. A written service exchange does not establish a real company's policy.

Official product sources

  • Jibber Jabber product-facts.json — platform, languages, Free features and saved-vocabulary limit, Premium features, prices, annual billing, and usage-limit statement.
  • Jibber Jabber llms.txt — product summary, official source routes, and the note that marketing demonstrations use sample data.

Both were retrieved on 9 November 2026. Both state a product review date of 28 October 2026. Current product terms can change. The profile links to pricing, languages, and the FAQ for direct confirmation.

Original workbook material

The Spanish exchanges, English translations, tasks, answer keys, variations, and notebook methods are editorial teaching material written for this site. They are not quotations from creators, reported conversations, learner testimonials, or research findings. No external recording is embedded or described as the source of a dialogue.

What is not claimed

We cite no result showing that these worksheets improve a measured score. We give no hour-to-level conversion. We report no number of successful learners. We do not claim an independent product test or an independent native-speaker review. Timing suggestions and scene-selection advice are practical editorial choices, not proven thresholds.

Source boundaries in a worksheet

The written key is supported by its dialogue. A conclusion labelled unknown is intentionally absent. A changed version supplies new invented evidence only for that variation. In a real-video task, use the chosen recording as the source of the new record, not the workbook's example.

Read the methodology for the checking process. The directory explains when an official current source is needed for a real-world decision.

How the related sites connect

This workbook is one of a coordinated collection of comprehensible input guides published by Jibber Jabber. They share one publisher and are not independent endorsements. See Related websites. We make Jibber Jabber.

Cite this page

Jibber Jabber. “Sources and product checks.” Spanish Fieldnotes. Updated 9 November 2026. https://spanishcomprehensibleinput.com/sources/