Chăm luyện
Follows the Kết nối tri thức textbooks · Lớp 1 to lớp 9

You revise on your own every day, with a buddy beside you.

The buddy reads questions aloud (grades 1–5), gives hints step by step and praises your effort.

Get the app ▶ Watch the buddy read aloud (grades 1–5)
  • No ads
  • No tracking
  • No AI chat
  • Sample lessons in every subject
Download on the Mac App Store Download on the App Store for iPhone and iPad Get it on Google Play
Chăm luyện's home screen: a cat buddy in a red neckerchief greets you, with the subjects beside it
⭐ Finish a lesson, get praised
🔊 Questions read aloud (grades 1–5)
Kết nối tri thứcthe textbook series every lesson follows, lớp 1 to lớp 9 (2018 curriculum)
1,500+lessons
10,000+original questions
0ads, 0 trackers
A few minutes a day

One revision session

You do it from start to finish on your own.

  1. 1
    Open a lessonYou pick the lesson you are learning at school.
  2. 2
    Listen to the buddy read the questionUnderstand it even when reading is still hard (grades 1–5).
  3. 3
    Stuck? Tap HintHelp comes in steps, never the answer straight away.
  4. 4
    Lesson done: praise, then a short breakThe buddy praises you, then you rest for a few minutes.

Questions are read aloud in the primary grades, lớp 1–5.

Lớp 1 (Grade 1)

Grade 1: spelling, reading and handwriting.

In lớp 1 the buddy shows every step.

  • Spelling practice: hear each sound and each rhyme, then put them together
  • Weekend reading sheets that follow the lessons at school: tap a word and the buddy reads it
  • Handwriting on ruled lines, with a green start dot and arrows; praise for finishing, never a comment on neatness
Watch handwriting practice25 seconds
The lớp 1 spelling screen: you hear each sound and rhyme, then put them together
Lớp 2 (Grade 2)

Grade 2: still a buddy to read along.

In lớp 2 the buddy is still there to read along.

  • Maths, Vietnamese and English for lớp 2
  • Questions, hints and explanations are all read aloud
  • English: English words are read in an English voice, instructions in Vietnamese

Questions are read aloud in the primary grades, lớp 1–5.

A lớp 2 maths question being read aloud by the buddy, each answer with a listen button
Hints in steps

Wrong is fine. Let's look again together.

You think first. When you are stuck the app helps a little at a time and never hands over the answer. You don't have to wait for anyone to explain.

  1. 1
    A nudge on how to workShows how to get started.
  2. 2
    A bigger hintDoes the first part with you; you finish the rest.
  3. 3
    A step-by-step explanationThe buddy talks through it slowly, picture by picture.
A question with the step hint open: the buddy shows how to work without giving the answer
Why you'll like it

Praise after a lesson keeps you keen.

You come back every day because you feel encouraged, not because you were nagged.

  • The buddy uses your name and praises effort, never scolds
  • Praise and stars after every lesson
  • The hard-work garden: each day of study, a flower blooms; 7 out of 7 days in a week earns a flower crown
  • A sticker book to collect from
The lesson-finished screen with stars and the buddy’s praise
A buddy of your own

A friend you create.

You pick an animal, fur colour, eyes, a hat and clothes. You can also draw a buddy of your own, or turn a photo into one. When you get something wrong the buddy encourages.

  • Many animals, colours, hats, outfits and accessories
  • Draw a new buddy (the photo option is opened by an adult)
  • The buddy uses your name and reminds you to practise daily
Meet the buddies29 seconds
The buddy maker: choose an animal, colour, eyes and a hat
Safe and private

See what you have learned.

Your progress is always in front of you.

  • Your progress: lessons done, stars, days in a row
  • A daily reminder at the time you choose
  • “Show off”: an achievement card you can share
The progress screen: lessons done, stars and days in a row
Limited breaks

Study first, rest after, with a limit.

Reach the star target and you earn a few minutes of break with one of 19 small games. When time is up the games lock by themselves and the buddy sends you back to learning. Adults set every number.

  • Adults choose the stars needed, the minutes per break and the daily limit
  • See how many break minutes you have used today
  • Redoing an old lesson earns no break time, so new work comes first
  • No ads, no chatting with strangers
The break rules screen: stars needed, minutes of break and the daily limit

Adults' rules: stars needed, minutes per break and the daily limit.

19 games for break time

Tap a game to see its screen in the app.

One app for many school years

Lớp 1 to lớp 9, subject by subject.

Over 1,500 lessons and 10,000 questions we wrote ourselves, following the order of the Kết nối tri thức với cuộc sống textbook series (2018 national curriculum). Every lesson has three stars to earn.

Lớp1
Lớp2
Lớp3
Lớp4
Lớp5
Lớp6
Lớp7
Lớp8
Lớp9
MathsVietnameseLiteratureEnglishScienceNatural science History and GeographyEthicsCivic educationNature and SocietyInformaticsTechnology Spelling and readingHandwriting

Subjects vary by grade. Questions are read aloud in the primary grades, lớp 1–5. The app is in Vietnamese.

From lớp 1 to lớp 924 secondsWatch video
Quick look

See Chăm luyện in action

A few short videos, each under 30 seconds.

Meet the buddy27 secondsWatch video For adults26 secondsWatch video Study first, then a break22 secondsWatch video
Learn, earn stars, then rest17 secondsWatch video
Peace of mind

A quiet place to learn.

🚫

No ads

No banners, no interrupting videos, no in-game purchases.

🔒

No tracking

No behavioural analytics and no third-party tools. Progress is stored on the device.

🧠

No AI chat

Everything you hear is written in advance and reviewed. The buddy picks its words with simple rules on the device.

An account is just an adult's phone number and a name. Adult actions (reminders, reporting a question, suggesting a game, using a photo) sit behind a small multiplication question. Read the privacy policy.

FAQ

Questions

Which textbook series does it follow?

Kết nối tri thức với cuộc sống (“Connecting Knowledge with Life”): lessons follow the order and titles of that series, and the questions are our own. If you use another series (for example Chân trời sáng tạo), the subjects still follow the 2018 curriculum but lesson names and order may differ. Chăm luyện is an independent app, not a publisher product.

Does it read the questions aloud?

Yes, in the primary grades, lớp 1 to lớp 5, in a Northern or Southern accent. Grades 6 to 9 show the text and are not read aloud.

Will I play games a lot?

No. A break is only possible after you reach the star target in a lesson, and each break lasts a few minutes, with one of 19 small games and no ads. Adults set the daily limit, and when time is up it locks by itself.

Does it teach new lessons?

No. Chăm luyện is where you practise and take short tests for each grade's subjects. It sits beside you while you work, like a patient older friend.

Will a hint give the answer away?

No. Hints go in steps: how to work, then a bigger hint, then an explanation. The app never gives the answer straight away.

Which devices does it run on?

iPhone and iPad (iOS 17 or later) and Mac (macOS 14 or later) and Android (8.0 or later), with one account for both. See Get the app for which stores are live.

How do I get a full account?

Every subject has a few sample lessons. For full access, contact us through the Support page.

Is my data safe?

The app has no ads or tracking. Without an account, nothing about you leaves the device. Details are in the privacy policy.

Get a study buddy.

Download Chăm luyện and try a few lessons in every subject.

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