The BAC 2027 revision app for 3AS students
A little every day, and it sticks until the BAC.
Every day your revision is ready for the time you have: a short lesson, a quiz, an exercise corrected step by step. And what you learned comes back right before it fades.
Pick your track and your time per day, and your first day is ready in 2 minutes.
Install the app, pick your track and your time per day, and your first day is ready in 2 minutes.
- 10,000+ students
- Official 3AS curriculum
- BaridiMob or CCP
Also on iPhone and Android. App Store Google Play
The method
How you revise, every day
Your day is ready
Say how much time you have: half an hour, one hour or two hours. Oustad prepares the day’s steps across the subjects of your track.
You understand, you practise, you get corrected
A short lesson of about 6 minutes, a quiz to check, then a BAC-style exercise corrected step by step from what you wrote.
What you learn comes back at the right time
A right answer comes back the next day, then after 3, 7 and 14 days. A mistake comes back two days later. That is how what you revise in November is still there in June.
- With Oustad
- Never revisited
What you forget if you never come back to it, and what stays when it comes back at the right time.
They revise with Oustad
- 10,000+ students with us since December 2025
- 700+ lessons written on the official curriculum
- 2008 → 2026 BAC sessions the content is checked against
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3AS student · Technical mathsI really liked the app.
التطبيق عجبني بزاف
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3AS student · Experimental sciencesI’m sticking with you in the app, and I keep revising.
راني مكملة معاكم في التطبيق ومستمرة في المراجعة
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3AS student · Experimental sciencesYou made a lot of things easier for us.
خففتو علينا بزاف أمور
Messages students sent to our support, names hidden.
The subjects, and which ones are ready
Everything follows your track’s official programme, in the order it is taught.
Pick your track when you sign up and Oustad shows you what is ready for you.
- Mathematics Available
- Physics Available
- Natural sciences Available
- Arabic Available
- French Available
- English Available
- Philosophy Available
- History and geography Available
- Islamic education Available
- Accounting and finance Available
- Economics and management Coming soon
- Law Coming soon
- Spanish Coming soon
- Italian Coming soon
- German Coming soon
- Civil engineering Coming soon
- Electrical engineering Coming soon
- Mechanical engineering Coming soon
- Process engineering Coming soon
Try it for free
Your first step is on us: a lesson, a quiz and a corrected exercise, plus the starting diagnostic.
1,000 DZD per month 6,000 DZD Pass until the BAC See the prices →
What students ask us
Can I try before paying?
Yes. The first step is free: a lesson, a quiz and an exercise corrected step by step, plus the starting diagnostic. Then you pick the month or the plan until the BAC.
See the prices →How much time a day?
You choose: half an hour, one hour, or two hours and more. The day adapts. A lesson takes about 6 minutes, a quiz has 8 questions.
Do I need a bank card?
No. BaridiMob or CCP: send a photo of the receipt and your account opens. Your parents can also order a code for you.
How to pay →Does it work for my track?
Yes, for the 6 tracks of 3AS, with the subjects of your track’s official curriculum, chapter by chapter, in class order.
Start today. A little every day.
Install Oustad, pick your track and your time, and your first day is ready.
Start for free Get the app Get the appAlso on iPhone and Android. App Store Google Play