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Where these numbers come from

Sources for the data we publish Updated: August 2026 Po polsku

Every number we show has its source here: who ran the study, on what sample and when. Where two studies measure the same thing differently, we give both — including when the second one is less flattering for us.

How long it takes to make a course

  1. “3 weeks” and “one evening” — these timings are indicative, not measured. They show the order of magnitude of the difference between recording a course yourself and generating the materials, not the result of a study on a sample of users. Reference point: a course of about 45 minutes.
  2. “narrator: 400–1500 zł” (about £80–300 on the English page) — typical rates for recording narration for a 45-minute course, based on offers on freelance marketplaces. The pound figures are the same bracket expressed for the UK market, not a live currency conversion. A range, not an average.
  3. “narrator: 0 zł” — the voice in Courselob is synthesised and included in your plan. There is no surcharge for the recording.

Market

  1. “Almost half of Poles have already learned online” — 49%. Study by SW Research commissioned by Edukier.pl, CAWI method, sample N = 808, Poles aged 16+, October 2023. The question was whether the respondent had ever used online learning.
  2. The same thing measured more narrowly gives about 10%. Eurostat asks about taking an online course in the last three months and reports around 10% for Poland (2024/2025 data). We give both numbers because they differ in definition, not in truth — showing only the more flattering one would be cherry-picking.
  3. “The global e-learning market is 346bn USD a year” — the average of four 2025 reports, in billions of USD: Polaris Market Research 439.9; IMARC Group 369.7; Arizton 325; Mordor Intelligence 248.8. The spread comes from different market boundaries — which is why we publish the average and its parts, not a single highest figure.

Prices and allowances

  1. Plan prices — shown in the pricing page and in the terms, are final prices. The provider is exempt from VAT, so nothing is added on top.
  2. “1,000 tokens per lesson”, “20,000” and “60,000” a month — these are not estimates but constants written into the application. The token cost of a lesson does not depend on its length, so the allowance can be worked out up front.
  3. “roughly three courses” and “roughly ten courses” — the token allowance divided by six lessons per course. A course can have a different number of lessons; hence “roughly”.

What you will not find here

  1. User counts, numbers of courses sold, or any counter. We do not publish numbers that cannot be verified — we would rather leave empty space than invent one.
  2. Customer testimonials. For the same reason: a testimonial nobody can check is worth as much as an invented one.
  3. Earnings forecasts. How much a given course earns depends on the topic, the price and your reach — nobody can predict that honestly, and promising income is a practice prohibited by consumer law.