# Guides: for students and parents

Source: https://tutix.ai/guides  
Updated: 2026-10-21

**The short answer.** These guides answer the questions families ask before choosing a tutor: what tutoring costs, whether AI tutoring works, how exams such as AP and IGCSE are built, and what to look for. Figures from outside Tutix are sourced at the foot of each guide.

## All guides

Written by the Tutix team. Every outside figure names its source.

- [How much a private tutor costs](/guides/how-much-does-a-private-tutor-cost): Rates by country, subject and tutor type, with what a month costs
- [Does AI tutoring work?](/guides/does-ai-tutoring-work): What randomized studies of AI tutors found, and what they could not show
- [How to choose an AI tutor](/guides/how-to-choose-an-ai-tutor): Nine questions that separate a tutor from a chatbot
- [Is AI tutoring safe for teens?](/guides/is-ai-tutoring-safe-for-teens): Age rules, data and parent visibility: the questions to ask
- [Using AI to study without cheating](/guides/how-to-use-ai-for-studying-without-cheating): Eight habits that make AI a study partner, not a shortcut
- [AP Calculus AB vs BC](/guides/ap-calculus-ab-vs-bc): Content, exam, pace and scores, side by side
- [AP exam formats and unit weights](/guides/ap-exam-formats-and-unit-weights): Formats, dates, calculator rules, unit weights and 2026 scores
- [AP study plan by hours](/guides/ap-study-plan-by-hours): Hours by course and level, and how to plan backwards from exam day
- [IGCSE Core vs Extended](/guides/igcse-core-vs-extended): Grades, papers and who each tier is for
- [IGCSE papers explained](/guides/igcse-exam-papers-explained): Paper 1 to Paper 6: time, marks, weighting and calculators
- [AP vs IB vs A Level vs IGCSE](/guides/ap-vs-ib-vs-a-level-vs-igcse): How the five curricula are taken, graded and recognized
- [SAT vs ACT](/guides/sat-vs-act): Questions, minutes, scoring, calculators and the next test dates
- [AP pass rates by exam](/guides/ap-pass-rates-by-exam): Share of students at 3 or higher on every AP exam, 2021 to 2026, and why a rate is not a difficulty ranking
- [How AP exams are scored](/guides/how-ap-exams-are-scored): How a computer and AP readers make an AP score, what 1 to 5 mean, and why a calculator is only an estimate

## Questions

**Who writes the guides?**

The Tutix team. Every figure from outside Tutix names its source and the date it was read, and a page says when it was last updated.

**How current are the exam facts?**

Each guide is written from the exam board's own published documents, and dates that pass, such as test dates, drop off the pages by themselves.

_AP® is a trademark registered by the College Board, which is not affiliated with, and does not endorse, this site. Cambridge IGCSE® and Cambridge International AS & A Level are trademarks of Cambridge University Press & Assessment, which is not affiliated with, and does not endorse, this site._