Hi! How can Zasu help you?

Zasu connects you with independent tutors and experts for one-to-one online lessons and consultations. Pick the right person, book one of their free time slots and join the video classroom right in your browser — nothing to install.

Zasu holds the lesson payment and only releases it to the tutor once the lesson is completed, so you are always protected.

Click “Sign up” and enter your name, email and password — or click “Continue with Google”. You need to tick the box accepting the Terms of Use and Privacy Policy to create an account.

People under 16 need a parent's or guardian's consent; ideally the parent signs up and manages the account.

Go to “Find tutors” or “Find experts” and filter by subject, program, price, time slots, free trial and more. Each profile shows an intro, education, experience, learner reviews and availability.

Not sure who to pick? Use “Find a tutor or expert with a quick questionnaire” on the home page for suggestions. Click ♥ on a profile to save it to your favourites.

Yes. Message the tutor from their profile page to ask about goals and learning plans. Messages containing phone numbers, emails or social media handles are blocked automatically — all lessons and payments must happen on Zasu so you stay protected.

With each tutor you can take up to 2 free 15-minute trials (if the tutor offers them) and up to 2 paid 50-minute trials at a discounted price set by the tutor.

Each learner has up to 5 free trials and 10 paid trials across all tutors (at most 2 of each per tutor). Every package you buy adds 2 free and 2 paid trials; remaining trials never exceed 5 and 10.

If you cancel at least 8 hours before the lesson, the trial is given back (paid trials are refunded 100%). If the tutor doesn't show up, you get the trial back as well.

If you miss 2 lessons in a row, free trials are temporarily suspended. Attend one full lesson to unlock them again. You may also have used all your trials, or that tutor doesn't offer free trials.

On the tutor's profile, choose a program and pick free time slots — you can book several at once (up to 50). Lessons start on 30-minute marks (19:00, 19:30…). Regular lessons last 50 minutes. The price is taken from your Zasu wallet (or from your package if you have one with that tutor).

Each tutor sets a minimum notice period, so slots that are too soon won't show up.

Open “My learning” (“My lessons” in the menu) and open the lesson to enter the classroom. The room opens 5 minutes before the start. Use a recent Chrome, Edge, Firefox or Safari on a computer or phone and allow camera and microphone access.

The classroom has a chat and file sharing (up to 5 MB per file; files are deleted after 7 days). Zasu does not record lessons.

Yes. You get an in-app notification and an email 24 hours and 1 hour before each lesson.

At least 8 hours before the lesson: cancel for free with a 100% refund.

Rescheduling: tap Reschedule on the lesson, pick a new time from the tutor's availability and send the proposal — the lesson moves only if the tutor accepts; until then the original time stands. A tutor who wants to move a lesson also needs your approval.

In the last 8 hours: lessons can't be cancelled; you can only propose a new time. If the tutor cancels, you are always refunded 100%.

The system decides from classroom attendance 24 hours after the lesson ends. Tutor absent (you present): 100% refund. You absent (tutor present): no refund. Both absent and no dispute: no refund.

If you joined the classroom, your attendance is recorded and the tutor can't mark you absent.

After the end time, press “Confirm lesson completed” on the lesson page to record it for your tutor right away. If you don't confirm or dispute, the system confirms it automatically 24 hours after the lesson ends. After the lesson, Zasu invites you to rate your tutor and Zasu (optional) — sending a review also confirms the lesson is complete. Trial lesson reviews are not shown publicly on the tutor's profile.

Lesson notes and homework from your tutor are also on the lesson page; you're notified when new homework arrives.

Within 24 hours after the lesson ends, open the lesson page, click “🚨 Open a dispute”, describe what happened and submit. The payment is held until Zasu resolves it and informs both sides.

28-day plans: 4, 8 or 12 lessons per cycle at the full price, renewing automatically from your wallet. Unused lessons carry over to the next cycle.

Multi-lesson packages: 24 lessons −3% (valid 6 months), 48 lessons −5% (12 months), 96 lessons −10% (24 months). Once used up, the package switches to a 28-day renewal (8 lessons per cycle, full price).

Every package you buy adds 2 free and 2 paid trials with other tutors.

Go to “My learning” and switch off auto-renewal on the package. If your wallet is short when it's due, Zasu lets you know and you can keep using remaining lessons during the grace period.

When a package ends without renewal you get a 28-day grace period to keep booking, renew (unused lessons carry over) or cancel for a refund. After that, unused lessons are forfeited and not refunded. Zasu reminds you before the package expires.

Yes — unused lessons are refunded to your wallet. For discounted packages, lessons already taken are recalculated at the full price and the difference is deducted from the refund.

A group class is a video class of 2–5 learners with one tutor on a fixed weekly schedule (for example Tuesday & Thursday at 19:00). Each session lasts 50, 80 or 110 minutes depending on the class. Browse the Group classes page, pick a class with free seats and enrol.

There are two kinds: ongoing classes (you buy session packs, e.g. an 8-session pack of about one month, auto-renewed if you turn it on) and full courses (a fixed number of sessions bought once, with a first-two-sessions guarantee: leave within 24 hours after session 2 and the rest is refunded).

Zasu holds your payment and releases it to the tutor session by session. A class needs its minimum number of learners 24 hours before the first session, otherwise Zasu cancels it and refunds 100%.

A session you miss still counts against your pack (your seat is kept and the tutor still teaches). Leaving mid-way is not refunded, except in the cases Zasu protects: the class is closed, you are removed, the class lacks learners, it is paused for 2 weeks or more, or the tutor cancels or no-shows 3 or more sessions within one pack.

When the tutor does not teach a session (cancellation, no-show, time off, public holiday) that session is not deducted from your pack; your remaining sessions roll over. The tutor receives a fault mark under Zasu's rules.

You can withdraw with a 100% refund up to 8 hours before the first session. You may also sit in on one session as a trial (free or 50% of the seat price, set by the tutor) before enrolling.

Go to “Top up wallet”, choose an amount (20,000₫ – 50,000,000₫ per top-up) to get your own ZASU… code, then transfer or scan the QR code with exactly that code as the transfer memo. Your wallet is credited automatically within a few minutes. Each code is valid for 60 minutes.

Check that the transfer memo contains the right code. If it was wrong or missing, email the transfer receipt to support@izasu.com so it can be reconciled and credited manually.

When you book, the price is taken from your wallet and held by Zasu. The tutor is paid only when the lesson is completed. If something goes wrong, open a dispute within 24 hours after the lesson ends and the payment stays on hold until Zasu resolves it.

Go to “My learning” → “Refund balance to bank”, enter a bank account in your own name and the amount (minimum 20,000₫). The amount leaves your wallet immediately and Zasu transfers it within about 7–10 business days after verification. You can cancel the request until the transfer is made.

Zasu is a web app: nothing to download from the App Store or Google Play. Add izasu.com to your home screen and you get an icon that opens like an app, one-tap access to the classroom, and notifications for lesson reminders, postponed or cancelled lessons and withdrawals even when the site is closed.

Android (Chrome): open izasu.com and sign in → tap the three-dot (⋮) button in the top-right corner → choose “Add to Home screen” (some phones say “Install app” or “Install shortcut”) → tap Add / Install.

iPhone (Safari): open izasu.com in Safari and sign in → tap the Share button (square with an arrow) in the bottom bar → scroll down and choose “Add to Home Screen” → tap Add. This only works in Safari; Chrome on iPhone has no such option.

If you opened Zasu from a link inside Zalo, Facebook or Messenger, installing is not possible there: tap the three-dot (...) button in the corner, choose “Open in browser”, then follow the steps above.

After installing, open Zasu from the home-screen icon and allow notifications when asked (or go to Settings › App & notifications). Without the app everything still works in the browser, you just will not get push notifications.

Click “Forgot password?” on the login page and enter your email to get a reset link (valid 60 minutes). After resetting, all other devices are signed out.

Yes. Go to “Account settings” → “Set a password” (no old password needed). You can then sign in with Google or with email and password.

Pick a language in the top bar (or at the bottom of the menu on mobile). Zasu notifications and emails also follow the language you used most recently.

Go to “Become a tutor or expert” and click “Start as a tutor / expert” — it uses your current account, no need to sign up again. Your learning history stays as it is.

You can edit most information yourself in “Account settings”. To download your data or delete your account, email support@izasu.com — Zasu replies within 72 hours under Decree 13/2023/ND-CP.