JS Insights Ltd · United Kingdom
We make learning apps and open course material, and we take on specialist work in website design, UK university applications, finance and quantitative methods.
Our finance study apps
Two complete teaching courses, free to study on Windows, Mac, iPhone, iPad and Android. Optional one-time purchases unlock more practice.
Windows, Mac, iPhone, iPad & Android
Study all ten 2027 topics with 1,214 narrated slides, 438 structured lessons, 192 formula cards and 1,707 explained questions. The complete teaching course is free; a single purchase unlocks complete 2027 practice. No subscription.
Windows, Mac, iPhone, iPad & Android
Study all eight 2026 Sustainable Investing Certificate modules with 1,166 narrated slides, formulas, notes and a 634-question bank. The full teaching course, selected questions and Mock Exam A are free; one purchase unlocks the remaining practice and removes advertising.
What we do
JS INSIGHTS LTD is a UK-registered education and training company. Digital education is the core business line; the specialist services around it draw on the same teaching, quantitative and publishing work.
Five learning tools published by JS INSIGHTS LTD, covering CFA Level I, sustainable investing, Life in the UK Test preparation and Chinese character learning.
Free course material for the 2027 CFA Level I Ethics curriculum and for the Sustainable Investing Certificate, with one-to-one CFA and finance tutoring by enquiry.
A complete ten-chapter English lecture series on econometrics and time series, with guided chapter notes, slides, self-check questions and reproducible R code.
Websites for academics, authors, independent businesses and content brands — structure, design, build, deployment and domain setup handled together.
Email-based support for UK undergraduate, master’s and PhD applications: positioning, personal statements, research proposals and interview preparation. We prepare your case; we do not guarantee any admission or visa outcome.
Our apps
Each app turns a focused study need into a practical study environment: a full CFA Level I course, the Sustainable Investing Certificate, multilingual Life in the UK revision, and two ways into Chinese characters. All five are free to download from the App Store; Level I, Sustainable Prep and Life UK Prep are also on the Microsoft Store for Windows and Google Play for Android.
See all five appsFree to study
Every resource below is free and needs no account. Videos are on YouTube; practice runs in the browser.
CFA Level I · 2027
The complete Ethics teaching course for the 2027 curriculum: a protected slide deck, four guided English videos and an 11-question first-module sample with worked explanations.
Sustainable Investing Certificate
Eight structured video lessons covering the foundations of sustainable investing, financial materiality, market participants and the global regulatory landscape, with an eight-question App preview.
Econometrics & time series
An English lecture series running from regression through volatility, filtering and nonstationary processes to machine learning in R, with chapter notes, slides, self-check sets and public code.
Life in the UK Test
A complete 12-part English course with subtitles in eight languages, plus the Life UK Prep app for iPhone, iPad, Mac, Windows and Android. Always check GOV.UK for authoritative test information.
How we work
Each app and course starts from a specific exam, test or syllabus, so the structure, practice and language support follow the material rather than a generic template.
Questions, explanations and course notes are reviewed against source material, and every resource states plainly what it covers and where the official guidance sits.
We mark what is available today and what is still in development, and we agree scope, price and timing in writing before any service work begins.
Get in touch
Email us about a website project, a UK application, CFA or finance tutoring, or tailored quantitative training. A short note about your goal, level and deadline is enough to start.
