It teaches.
A live tutor that talks and draws, and changes course with you.
Live TutorNEWSia Agent · the study agent for macOS & Windows
Not another chatbot.A study agent that tutors.
Sia Agent teaches on a live whiteboard while it talks, plans your exam prep to the day, and turns your own files into study material, right on your desktop. And it remembers you.
🎁 Get 1,000 credits free
Please download on a computer
Free to start · 1,000 credits on us · No credit card required
Mac:·Windows:
2M+ students worldwide27 examsTeaches in 9 languages
Sia Agent is a standalone desktop app from AskSia Inc. Your login account is shared with AskSia’s web and mobile apps, but content is kept separate across these products.
Sia explains the agent in 1:51 · voice + captionsPlays when you press play
What is a study agent?
A chatbot answers. A study agent teaches, trains and works.
Ask both the same question and watch what happens.
A study agent is an AI that doesn't stop at the answer. It teaches the idea on a live whiteboard, plans your exam prep day by day, and does the study work, like cheat sheets and diagrams, from your own files.
Sia Agent is the study agent built by AskSia for macOS and Windows. One app, three jobs: it teaches, it trains, it works. And because it is one agent, it remembers your exam, your mistakes and your files from one lesson to the next.
A chatbotgives you the answer
Why did revenue go up when the price went up?
Because demand is inelastic. Quantity fell 10.5% while price rose 18.2%, so |Ed| ≈ 0.58 < 1, and total revenue increased from $5.0M to $5.4M.
Done. Next question?
Sia Agentteaches you the idea, live
Your turnThe price goes to $14. Before I draw it, what do you think happens to revenue?
It trains.
A plan built from a 15-question diagnostic. Every mistake becomes a lesson.
Test Prep
It works.
Drop your slides, get a one-page cheat sheet you edit by just asking, right on your desktop.
CopilotLive Tutor
A tutor that thinks out loud, and draws while it talks.
Type one line or bring your paper. Sia plans the lesson, draws it on a live whiteboard and explains as it goes. Interrupt whenever you like: it changes course with you, and speeds up when you're ahead.
01
A whiteboard that draws itself.
Diagrams, curves, equations and steps appear as it explains them, in the order you need them.
02
Bring your paper.
Drop a handout, slides or a practice paper. It teaches it page by page, question by question.
03
Cut in anytime.
Hit Interrupt or just start talking. It stops, answers you, and changes course. Already get it? It speeds up.
Raw elasticity: negative
Use the absolute value
✋ Wait, why is it negative?
P ↑ → Q ↓ : they move opposite ways
so %ΔQ ÷ %ΔP comes out below 0
|−0.58| = 0.58 → inelastic
04
Speak, then say it better.
Your own words go up on the board. You get a better version, and you say it again.
0:45Speaking · Interview 1/4
Tell me about a time you made something creative.
You said
I made a video for my grandma birthdaygrandmother's birthday. It was meaningful because she live farlives far away.
Say it better
I made a short video for my grandmother's birthday. It meant a lot, because she lives far away and it let the whole family say hello at once.
05
It remembers you.
It keeps track of what you've mastered and picks up where you left off, at your level.
Tutor memory✕
Profile
LevelFirst-year university
SubjectsECON 101StatisticsTOEFL iBT Speaking
Recent lessons · 8Concepts · 32
Oct 16Price elasticity of demand
Midpoint formula ✓Revenue test ✓Tax incidence · review
Oct 15TOEFL Speaking · Interview
Past tense ✓Linking ideas · review
↻ Next lesson picks up at Tax incidence
Test Prep
Your exam, planned to the day.
Pick your exam and target score. A 15-question diagnostic finds your real starting point, then Sia builds a day-by-day plan: drills, full mock exams, an AI score prediction that moves as you improve, and a live lesson on any question you miss.
0:45
Your answerPausing is fine. When you finish, Sia takes it from there.✓ I'm doneTake an Interview · 1/4
Tell me about a time you made something creative to express an idea or feeling. What did you make, and why was it meaningful to you?
FULL-LENGTH MOCKDigital SAT
98 questions4 timed modules2h 14m
Start mock →AI SCORE PREDICTIONUpdates after every mock
2✕ Incorrect
In Neri, what identifies the actor in the example?
- ✓An ending on the actor's noun.Correct
- BThe absence of a receiver noun.
- ✕The actor's position at the start of the sentence.Your pick
- DAn ending on the word for the action.
● Live lesson · this question
Find the evidence first
Neri → back to ¶2
an ending tags the actor's noun
word order? That's Luma, not Neri
27 exams.
One study agent.
Pick yours, take the diagnostic, and your plan starts today.
SATPSAT/NMSQTACT
TOEFL iBTIELTS Academic
Calculus ABCalculus BCStatisticsChemistryPsychologyEnglish LanguageEnglish LiteratureUS HistoryWorld HistoryEnvironmental Science
Math AAMath AIEconomicsBiology
MathsPhysicsChemistryEconomics+ 4 more
COMING SOONGRE · GMAT · LSAT · MCAT · Duolingo English · Cambridge · Gaokao · Suneung · Abitur · JEE · NEET · TOPIK
Copilot
Drop your slides. Get the cheat sheet.
Copilot is the part of the study agent that does the work. Drop a PDF, a homework photo or a whole course folder, start from a Skill or just ask. It reads your files, plans the job, runs it step by step and saves the result on your computer.
SkillsCheat SheetDiagram BuilderCompare & ContrastProcess Walkthrough
- A print-ready cheat sheet in a minute.Formulas, decision rules, worked examples and the traps you fall for, on one page.
- Watch it work.It reads the lecture, plans 8 sections, writes them in parallel and checks the sheet before it hands it back.
- Say what to change.It rewrites that section, and nothing else moves.
- Always fits your one allowed sheet.No shrinking the font to make it fit.
- It works on your computer.Attach files or a whole folder, let it run on its own with Auto Accept, and find the result in your folders.
Built on AskSia's library of 800+ course guides, so it can start before you upload anything.
PDFECON101-Lecture7-Elasticity.pdf
section 3 rewritten · nothing else moved
Build me a one-page cheat sheet from this lecture for my ECON101 midterm, with the formulas and the traps I usually fall for.
Reading the elasticity lecture to build your one-page midterm cheat sheet.
✦ build-cram-sheet done
Plan ready: 8 sections. Generating in parallel…
Core definition
Midpoint formula
What determines elasticity
Elasticity and revenue
Tax incidence
Worked streaming example
Classify the value
Exam traps and graph reading
Cheat sheet validated. Cheat sheet ready.
section 3 rewritten · nothing else movedMake section 3 shorter↵
✓ Saved ~/Documents/ECON101/cheat-sheet.pdf
How to use Sia Agent
From download to your first lesson in a minute.
Four steps. The same study agent on Mac and Windows.
Runs on macOS 12 or later (Apple silicon and Intel) and Windows 10 and 11. About 14 MB on Mac.
The loop
Every mistake becomes a lesson.
One study agent. It knows your exam, your mistakes and your files, so lessons, plans and cheat sheets remember each other.
- Diagnostic
- Your plan
- Daily practice
- A wrong answer
- A live lesson on exactly that question
- It remembers what you've mastered, and tomorrow's plan adapts
+ COPILOTReads your files and the course library, builds what you need to study, and the tutor picks it up from there.
1Pick the exam, take the diagnostic
2A plan to the day
3A miss becomes a live lesson
4Copilot builds what you need next
Real screens, real lessons
Built for students who want to get it, not just get it done.
2M+students worldwide
27exams in Test Prep
9languages it teaches in
800+course guides to start from
Who it's for
One study agent, three ways in.
exam season
Prepping for the SAT, ACT, AP, IB or A-Levels
A plan to the day, mocks that feel real, and a tutor on call for every miss.
speaking test soon
Taking TOEFL or IELTS
Speaking cards that time you like the real test, your own words on the board, and a better version to say again.
1 AM, midterm week
Getting through a university course
Drop the lecture, get the cheat sheet. Stuck on a proof at 1 AM? Open a lesson.
FAQ
Questions, answered quickly.
What is a study agent?
A study agent is an AI that doesn't stop at the answer. It teaches a concept on a live whiteboard, plans your exam preparation day by day, and does the study work, such as cheat sheets and diagrams, from your own files. Sia Agent is the study agent built by AskSia for macOS and Windows.
Is Sia Agent free?
It's free to download, and every account gets 1,000 credits, one time. Live lessons, exam plans and Copilot jobs use credits as you go.
Which exams does it cover?
SAT, PSAT/NMSQT, ACT, 10 AP subjects, 4 IB subjects, 8 A-Level subjects, TOEFL iBT and IELTS Academic, with more on the way.
What languages does it teach in?
The tutor teaches in the language you choose: English, Chinese (Simplified, Traditional or Cantonese), Japanese, Korean, French, German or Spanish.
Do I need to upload my own materials?
No. Bring your slides if you have them. Otherwise Sia starts from AskSia's library of course guides and exam-style practice questions.
Which Mac download do I need?
Macs with Apple silicon (M-series chips) use the Apple silicon build; Intel Macs use the Intel build. The download button picks the right one for your machine, and both are listed under it. macOS 12 or later. The Mac build is signed and notarized by Apple.
Does it run on Windows?
Yes. Sia Agent runs on Windows 10 and 11 as a native app, with an .exe installer and an .msi package.
Bring your hardest question.
Download Sia Agent, the study agent for your desktop, and open your first lesson in a minute.
🎁 Get 1,000 credits free
Please download on a computer
Free to start · 1,000 credits on us · No credit card required
Mac:·Windows:
Exam names are trademarks of their respective owners, which are not affiliated with and do not endorse AskSia. Practice questions are original and exam-style.
