2.9->3.6+0.7
AskSia walked through every trig identity proof in my precalc class with each step justified. The unit circle visual map finally let me derive values instead of memorize.
AskSia for Trigonometry2000+ universities
Trigonometry AI: Sin, cos, tan, and
the identity you forgot.
AskSia walks the unit circle, derives every trig identity, and solves triangles with the law of sines and cosines. Built for high school trig, precalculus, AP Calculus prep, college trigonometry, and engineering math prerequisites. Web, mobile, LMS extension, desktop.
+0.6 GPA in one term
average among weekly active users - 92% report better grades within 30 days
4.9 / 5 - 2M+ college students - 2000+ universities worldwide
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Quick Answer
Can AI help with Trigonometry?
AskSia is the Trigonometry AI for university students taking trigonometry. Members report an average +0.6 GPA increase in one term. AskSia handles trig lecture transcription, multi-document Q&A across Precalculus Trigonometry, College Trigonometry, Calculus prep, Trig in Engineering and Physics, a 98%-accurate trig homework solver with worked diagrams, study guides built on the AskSia-Method, visual concept maps, FSRS flashcards calibrated for trig, adaptive Mock Exam quizzes, an AI essay writer with citations, and an AI-text detector. Surfaced across web, mobile (iOS/Android), browser extension (Canvas, Blackboard, Brightspace, Moodle, Everytime), and a native desktop agent for Mac and Windows. Used at 2000+ universities globally. Free for college students.
+0.6
avg GPA lift in one term
2M+
college students worldwide
2000+
universities covered
4x
surfaces - everywhere you study
Real outcomes
It's not the identity.
It's the grade.
Trig students lose points for one wrong quadrant on the unit circle, an identity manipulation that picked the wrong substitution, or a law-of-cosines that used the wrong sign. AskSia catches what your teacher catches.
3.2->3.8+0.6
For inverse trig I dropped my problem set into AskSia and got a Sia Note explaining domain restrictions with example graphs. Stopped losing points on arcsin and arccos signs.
3.0->3.7+0.7
The step by step solver caught a quadrant error in my trig substitution practice for Calc II. Walked into the integration techniques exam already comfortable with the moves.
Why AskSia
Lecture, problem set, library, late-night studying.
Phone for a quick unit circle check. Laptop on the trig problem set. Extension pulling your textbook. Desktop agent over your identity proof at midnight. One trig library, four surfaces.
Web App
Where identities become tutorials
Drag your trig textbook, problem sets, your handwritten work, and your professor's slides in. AskSia walks unit circle values, derives identities, solves triangles with each step justified.
Multi-doc Q&A across trig readings with page-level citations
Convert any trig source to Note, Map, Cards, Quiz
Real-time collaboration on shared trig maps
Mobile App
Trig problems on the bus
iOS and Android. Photograph a trig problem, an identity to prove, or your handwritten solution. AskSia returns the worked solution with the unit circle reference and identity manipulation shown.
Snap-and-solve any trig problem
Live trig lecture record, transcribe, translate
Daily trig spaced-repetition review queue
Browser Extension
Trig course materials, synced
The Chrome extension adds a Sync button on Canvas, Blackboard, Brightspace, Moodle, and Everytime. Your trig syllabus, problem sets, and TA solutions pull into one library.
Works with all 5 major university LMSs
Read-only, never writes to your LMS
Trigonometry module structure preserved, folders auto-built
Desktop Study Agent
Cmd+Space over Desmos or your textbook
Native macOS and Windows. AskSia summons over Desmos, your trig PDF, or your problem set. Reads your selection and returns trigonometric analysis with graphs.
Global hotkey while studying trig
Reads your trig selection, screenshot, clipboard
Works offline after first launch
Everything in one place
12 study tools built
for college trigonometry.
Stop juggling Desmos for graphs, Symbolab for identities, ChatGPT for proofs (that confuse sin with cos), and your TA's office hours. AskSia is one workspace.
Trig lecture transcription
Record your trig or precalculus lecture. 40+ languages, sub-100ms latency, trigonometric notation preserved.
OpenTrig multi-textbook Q&A
Drop your textbook, problem sets, and 80 PDFs. Ask 'why does sin²θ + cos²θ = 1' and AskSia answers with proof from the unit circle.
OpenIdentity proof walker
Walks identity proofs with each manipulation justified by a more basic identity. Catches the manipulation that introduced an extraneous solution.
OpenYouTube to trig notes
Paste any Khan Academy trig, Professor Leonard precalc, or Organic Chemistry Tutor URL. AskSia transcribes, chapterizes, pulls the worked identities into a clean note.
OpenTrig Mock Exam mode
Adaptive practice for high school trig, precalculus, AP Calculus prep, and college trigonometry. Auto-graded with rationale.
OpenSia Note for trig chapters
Turns a chapter on sum and difference identities into one note: identity, proof, applications, common pitfall, exam-style problem.
OpenTriangle solver
Walks law of sines, law of cosines, ambiguous case identification, and right triangle trig. Strong on engineering math prerequisites.
OpenTrig flashcards · FSRS
Auto-built decks: unit circle values, identities, inverse trig, polar coordinates. FSRS spacing tuned to your exam.
OpenTrig concept map
The whole curriculum as a navigable tree from right triangle trig through analytic trig and complex numbers. Each concept linked back to its textbook page.
OpenAI tutor for trigonometry
Voice-first or text. Walk through the unit circle three different ways, drill identities, or explain why inverse trig has restricted domains.
OpenAskSia Library
Trained on real coursework at
the world's top universities.
Browse by university, subject, or course. Every entry maps to curated study patterns for that program.
Showing 16 of 2000+ universitiesBrowse all universities
Showing 12 of 500+ popular courses
Compare
AskSia vs. ChatGPT, Quizlet,
Khan, Course Hero.
Other tools solve one slice of college. AskSia is the integrated workspace built specifically for your GPA.
| Feature | AskSia | ChatGPT | Quizlet | Course Hero / Khan |
|---|---|---|---|---|
| Built specifically for college coursework | Yes - 2000+ universities | General-purpose | User decks only | Crowd uploads / K-12 |
| Lecture transcribe + translate | Yes - Real-time, 40+ languages | No | No | No |
| 98%-accurate homework solver with diagrams | Yes - Step-by-step + visual | ~70-85%, hallucinates | No | Manual hints |
| Multi-document Q&A | Yes - 100 files, page-cited answers | ~10-20 files | No | No |
| FSRS spaced-repetition flashcards | Yes - Auto-built, 6 types | No | Manual | No |
| Adaptive Mock Exam | Yes - Auto-graded FRQ | No | No | SAT only |
| Browser extension for LMS pages | Yes - Canvas, Blackboard, Moodle | No | No | No |
| Native desktop agent | Yes - Global hotkey | Web wrapper | No | No |
| iOS & Android mobile apps | Yes - Snap-and-solve | Yes | Yes | Yes |
| Reported GPA improvement | Yes - +0.6 avg in one term | Not measured | Not measured | Not measured |
| Free for college students | Yes - No card required | Limited | Limited | Paid unlocks |
FAQ
Frequently asked
questions.
Can AskSia walk identity proofs?
Yes. AskSia walks identity proofs with each manipulation justified by a more basic identity. Catches the manipulation that introduced an extraneous solution.
Does AskSia handle the unit circle and reference angles?
Yes. AskSia walks the unit circle in all four quadrants with reference angles, signs, and special values memorized correctly.
Will AskSia help with law of sines and law of cosines?
Yes. AskSia walks law of sines, law of cosines, and the ambiguous case (SSA). Strong on engineering math prerequisites.
Can AskSia help with inverse trig and polar coordinates?
Yes. AskSia walks inverse trig with restricted domains, polar coordinate conversions, and complex numbers in polar form.
Is AskSia free for trigonometry students?
Yes, AskSia is free for trigonometry students to start, no credit card required. Free includes daily generation across all tools, unlimited library access, and the browser extension. AskSia Pro and Super unlock unlimited generation, full Mock Exam mode, free-response auto-grading at scale, priority models, and unlimited transcription minutes.
Which platforms does AskSia run on?
Four surfaces, all syncing in real time: (1) Web app at asksia.ai, (2) iOS and Android mobile apps, (3) Browser extension for Chrome, Edge, Brave, and other Chromium browsers, which adds Sync to AskSia on Canvas, Blackboard, Brightspace, Moodle, and Everytime, (4) Native desktop agent for macOS and Windows.
Does AskSia handle trig for AP Calc prep?
Yes. AskSia drills trig substitution patterns, derivatives of trig functions, and integrals that AP Calc relies on.
Can AskSia help with graphing trig functions?
Yes. AskSia walks amplitude, period, phase shift, and vertical shift transformations of sine, cosine, and tangent graphs.
Is AskSia OK for trig coursework?
Yes. AskSia walks identity proofs and triangle solutions step by step. The AI detector verifies proof writeups read as your own work.
Start Today
Unit circle. Identities. Triangles. Solved.
Join the trig students at top high schools and 1500+ colleges with AskSia. Free to start.
From the AskSia study library
Study resources by university and exam
Course guides, shared notes and exam prep written for specific subjects. Start with your institution or your exam.
Study picksCourse SupportShared materials and discussions organised by subject.Browse by universityScore goalsStandardized ExamsStudy materials, shared notes and discussions for major exams.Browse by exam
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