Quick start
Sign up or log in, then pick a subject and the level that fits you.
Dashboard is your home base: continue learning, daily missions, streaks, rankings, and per-subject progress.
Not sure of your level? Take the placement test and Camba suggests a starting level.
11 subjects & levels
Camba has 11 subjects: 7 language subjects covered by the Free/Pro plans, plus 4 exam-prep courses sold separately.
1. Business English Shadowing (A1–B2) — the default subject: role-play an office worker and shadow real dialogues to build speaking reflexes every day.
2. Business Chinese Shadowing (HSK1–4): office dialogues with Chinese-character karaoke and pinyin.
3. German Azubi Shadowing (A1–B2): shadow a vocational-training journey through a German hotel & restaurant.
4. Cambridge English (Starters · Movers · Flyers · KET · PET): vocabulary, grammar, listening, reading, writing and speaking in the real exam format.
5. School English — SGK (grades 3–11): follows the Global Success textbooks unit by unit — vocabulary, pronunciation, grammar, skills and review checkpoints.
6. General German self-study (A1–B2): a full path — vocabulary, grammar and all four CEFR skills.
7. Chinese HSK (HSK1–6): built to the HSK standard — vocabulary, grammar, listening and reading.
8. Grade-6 entrance prep (Trần Đại Nghĩa & top schools) — a separate COURSE: 4 test parts (Multiple choice · Math thinking · English · Reading & composition), 1.986 questions with detailed answer explanations, plus full-format mock exams.
9. V-ACT aptitude test prep (VNU-HCM) — a separate COURSE: 4 parts (Vietnamese · English · Maths · Scientific reasoning) on the 1,200-point scale, 2.760 questions explained option by option, plus 120-question / 150-minute mock exams.
10. HSA aptitude test prep (VNU Hanoi) — a separate COURSE: 8 test parts (Maths & data analysis · Literature and language · English · Physics · Chemistry · Biology · History · Geography) on the 150-point scale, 4.385 questions explained option by option, plus 150-question / 195-minute mock exams with three separate timers.
11. IELTS prep (Academic) — a separate COURSE with its own price, 799.000đ per 6 months or 999.000đ per year: Listening · Reading · Writing · Speaking across 5 band tiers from 0–3.0 to 6.5–7.5+, 673 questions explained in Vietnamese, with Writing and Speaking marked by AI on the 4 band criteria; content opens gradually and empty cells show "in preparation".
Alongside every subject: Practice (vocab & grammar quizzes, flashcards, spaced review from words you've learned) and Mock tests — available today for Cambridge English, School English (SGK), Grade-6 prep, V-ACT prep and HSA prep; other subjects show an "in preparation" notice.
Progress is saved per subject — switch subjects from the picker at the top; nothing is lost.
What’s in a lesson?
Business communication subjects use the Shadowing method: each mission runs through 5 stages — Listen → Shadow → Overlap → Role-play → Done — to build speaking reflexes.
The academic track (Cambridge, German, HSK): each lesson has 5 steps (Learn → Practice → Check → Apply → Review), about 10–12 questions depending on the skill.
School English (SGK) and Grade-6 exam prep: each unit splits into short missions that follow the textbook or the real exam format.
The Writing/Speaking Check step inside Cambridge · German · Chinese lessons is a SELF-CHECK: you re-read the criteria and tick them yourself, with no AI. AI grading runs on open-ended answers in School English (SGK) and the two exam-prep courses, and on written/spoken answers in Mock tests.
Unlocking the next lesson
One rule everywhere — score 75% to pass, on every subject.
Academic track: finish at least 75% of exercises with average accuracy of 75% or higher to unlock the next lesson.
Shadowing: score 75% or higher on the current mission to unlock the next one; below that, practice it again — retrying never costs a study unit.
Lessons already unlocked stay unlocked even if your score drops later.
Free / Pro plans and exam-prep courses
Free — free forever: new accounts learn without limits for their first 7 days counted from their first study session; after that, 1 new study unit per day — lessons, shadowing missions and Practice sessions share one quota.
Pro — 99.000đ per 6 months or 149.000đ per year: unlimited new study units, unlimited Mock tests, full Shadowing extras (Patterns · Collocations · Grammar · Vocabulary). Pro covers the 7 LANGUAGE subjects — not the two exam-prep courses.
Exam-prep courses — 299.000đ per 6 months or 499.000đ per year, each course sold on its own. Every course INCLUDES Camba Pro for all language subjects; buying Pro does not include the courses.
Everyone gets a 7-day free trial per course, counted from the first lesson you open in that course. When the trial ends, the course pauses; language subjects keep working as usual.
Mock tests never draw from the daily quota: Free gets 1 mock for life (even during the first 7 days); Pro and course buyers are unlimited.
Anything you've studied can be reviewed freely — it never costs a study unit. Daily quotas reset at 00:00 VN.
Every plan includes the level test, rankings, and Streak Buddies.
Payment is by QR bank transfer and does NOT auto-renew. When a plan expires the account returns to Free and all learning progress stays intact.
- New study units / day
- 1
- Review studied units
- Unlimited
- Mock tests & AI grading
- Trial
- Shadowing extras
- Limited
- Grade 6 & V-ACT prep
- 7-day trial
- New study units / day
- Unlimited
- Review studied units
- Unlimited
- Mock tests & AI grading
- Unlimited
- Shadowing extras
- Unlimited
- Grade 6 & V-ACT prep
- —
- New study units / day
- Unlimited
- Review studied units
- Unlimited
- Mock tests & AI grading
- Unlimited
- Shadowing extras
- Unlimited
- Grade 6 & V-ACT prep
- Yes
Camba Rank leagues
Ranked by lifetime XP. Each metal league (Champion → Silver) holds Top 10; outside the top 70 is Bronze.
When you move into or out of the Top 10 of a league, you’ll get a promotion/demotion notice.
Earn XP by completing lessons, daily missions, and keeping your streak going.
Streaks & Streak Buddies
Your streak is the number of consecutive days you learn — study every day to keep the flame alive.
Invite friends to keep a group streak: when you both learn on the same day the shared streak grows, keeping you motivated.
You can send in-app reminders to friends when they're about to lose a streak.
Refer friends, earn rewards
Share your referral code/link from the Referrals page to invite friends to Camba.
When a friend joins through your link and buys any plan, your active plans get 30 extra days — or you get 30 days of Camba Pro if you are on Free.
Frequently asked questions
Common questions when using Camba:
How many new lessons per day does Free get?
New Free accounts learn without limits for their first 7 days from their first study session. After that it's 1 new study unit per day — lessons, missions and Practice sessions share the quota; Pro is always unlimited. Anything already studied can be reviewed freely.
If I use up today's new lessons then switch subjects, can I open a new lesson?
On Free, no — the daily limit is shared across all subjects. Lessons already opened today can still be retried.
Does Pro include Grade-6 prep and V-ACT prep?
No. Pro covers the 7 language subjects. The two exam-prep subjects are sold as separate courses at 299.000đ per 6 months or 499.000đ per year, and each course includes Camba Pro — buying a course gets you every language subject too.
How long is the free trial for an exam-prep course?
7 days per course, counted from the first lesson you open in that course (opening the topic list does not start it). When the trial ends without a purchase the course pauses; language subjects keep working as usual.
Do I lose progress when a plan expires?
Nothing is lost. Camba is paid by QR bank transfer and never auto-renews, so an expired plan simply returns the account to Free — lessons, scores, streak and rankings all stay. Renew whenever you like and pick up where you left off.
Where does AI grading actually run?
Three places: open-ended answers in School English (SGK), Grade-6 prep and V-ACT prep, and written/spoken answers in Mock tests. On open-ended answers AI grading is a paid-plan feature — Free gets one AI grade for life, then switches to a self-check criteria list. The Writing/Speaking Check step inside Cambridge · German · Chinese lessons is a SELF-CHECK step and uses no AI.
What is Skip-ahead?
Skip-ahead is a test that jumps you straight to the level you are actually at, instead of starting over. In Shadowing it sits on the day-6 mission of each week. In School English (SGK), every locked stage has a Skip-ahead button — answer questions drawn from the units you are skipping, score 75% or more and you jump straight there; the skipped units stay open for review.
Does switching subjects erase progress?
No. Progress and last level are remembered per subject.
When do daily quotas reset?
They reset at 00:00 VN.
Why hasn't my next shadowing mission unlocked?
You need 75% or higher on the current mission to unlock the next one. Retry the mission to raise your score — retries never cost a study unit.
How do Mock tests work?
Open Mock tests from the menu. They never draw from the daily study quota: Free gets 1 mock for life (even during the first 7 days), while Pro and course buyers are unlimited. Written/spoken answers get AI grading and feedback. Tests are available today for Cambridge English, School English (SGK), Grade-6 prep and V-ACT prep; other subjects show an "in preparation" notice.
When do I lose a streak, and can I save it?
Your streak resets if you skip a day of learning. Study daily and add Streak Buddies so you can remind each other.
Can Free users join rankings and practice?
Yes. Rankings and the level test are available on every plan. Vocabulary/grammar practice too — on Free, each Practice session draws from the daily new-study quota.