AskSia vs Gemius
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AskSia
This AI-powered study tool helps students upload readings, transcribe lectures, ask questions, and organize notes. It offers a free tier with limited features and multiple premium subscription plans for enhanced capabilities and unlimited processing.
- Upload readings and documents
- Transcribe lecture audio
- Ask AI questions about content
- Organize notes
- Unlimited AI assistance (premium)
- Document processing (premium)
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AskSia is your AI tutor and AI study assistant. Upload lecture recordings, PDFs, slides, photos and class notes, and Sia turns them into notes, flashcards, practice tests and a study plan from your own courses. Trusted by 2M+ students at 2,000+ universities. RECORD, TRANSCRIBE AND TRANSLATE YOUR LECTURE LIVE Fast professor? Heavy accent? Tap record and read every word as it is spoken, whether the lecture is in English, Korean, Japanese, Cantonese, Mandarin or Spanish, translated into your language in real time. Recording continues when your phone is locked, a floating window keeps the transcript in view, and you can ask Sia questions mid-lecture. When the lecture ends you get a summary and an outline. Built for lectures and coursework, not meetings. 30+ languages supported. ASK SIA ANYTHING ABOUT YOUR FILES OR AUDIO Upload up to 20 files at once: PDFs, Word documents, PowerPoint decks, Excel sheets, textbook chapters, audio files, YouTube links or photos. Ask a question and get an answer with citations that point to the exact page. Long readings become summaries with key points in your professor’s terms. LECTURE IN, NOTES OUT Any recording or file can become structured notes, a study guide, flashcards or a quiz, with spaced repetition built in so the cards you miss come back until you know them. Use the flashcard maker and quiz maker on one slide deck or a whole semester. PRACTICE BEFORE IT COUNTS Build timed practice tests and mock exams from your own course material, not from random question banks, with every miss explained. Use them for midterms, finals, college entrance and grad school exams. Preparing for a standardized test? Upload your prep materials and Sia turns them into practice sets and flashcards too. SIA SHOWS THE STEPS, NOT JUST THE ANSWER Snap a photo of a problem in math, physics, chemistry, biology, statistics, coding or engineering, or type it or say it out loud. Your AI tutor works through it step by step and explains the reasoning, not just the result. Ask why, ask again, or ask in your own language. KNOW WHAT TO REVIEW BEFORE THE EXAM Sia tracks what you get wrong across notes, flashcards and practice tests and tells you what to review next, so before an exam you know exactly what needs work. BRING YOUR WHOLE SEMESTER IN ONE CLICK Install the AskSia Chrome extension, import your courses from Canvas, Blackboard, Moodle or Brightspace, and your readings, slides and deadlines sync to the app. Sia builds a study plan from your syllabus that you follow on your phone. ANY FORMAT, EVERY DEVICE Photo, text and voice input. iPhone, iPad, Mac, Windows, web and Chrome extension, with your library, notes and chat history synced everywhere. FREE TO START • 300 minutes of transcription a month • 100 PDF pages a month PREMIUM PLANS PLUS, SUPER and A+ remove the limits. A+ includes the GPA Guarantee: use AskSia A+ for a full term and improve by at least one letter grade, or get 100% of your money back. Terms apply. A 3-day free trial is available on selected plans. Cancel anytime in the app. BUILT FOR • College and graduate students • High school students preparing for finals and entrance exams • International students studying in a second language • Anyone who learns faster with an AI tutor that explains AskSia is an AI study assistant that helps you understand your coursework rather than doing it for you: every answer comes with reasoning and citations. Contact: https://www.asksia.ai/contact-us Privacy: https://www.asksia.ai/policies/privacy Terms: https://www.asksia.ai/policies/termofuse
Gemius
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Gemius turns any topic into a personalized powered course in seconds. Simply describe what you want to learn, whether it's Python, piano, marketing, or anything in between, and Gemius builds a complete course with structured chapters, bite-sized lessons, and quiz questions tailored just for you. LEARN YOUR WAY • AI generates a full course from any topic you choose • 8 structured chapters with 40 lessons per course • Quiz questions to test and reinforce your knowledge • Beginner, Intermediate, and Advanced difficulty levels STAY MOTIVATED EVERY DAY • Daily Bounties keep you engaged with fresh challenges • Earn XP and coins as you complete lessons • Build your streak by checking in every day • Level up from Newcomer all the way to Immortal COMPETE AND ACHIEVE • Climb the global leaderboard and compete with other learners • Unlock trophies as you hit milestones • Track your progress with a detailed stats dashboard • View your learning activity log and course history YOUR PERSONAL QUEST LOG • All your courses in one place • See progress at a glance with visual progress bars • Pick up right where you left off Gemius is for curious minds who want to learn anything, at any time, on their own terms. Whether you have 5 minutes or 5 hours, there's always a lesson waiting for you. Start your first quest today.
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Verdict
The clearest difference is in-app purchases: Gemius at none against AskSia's 7. On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. AskSia sells 7 in-app purchases, starting at $5.99 per 7 days. Gemius asks for nothing beyond the download.
| Parameter | AskSia | Gemius |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (62 ratings) — better | — |
| Positive reviews | 82.9% of reviews | — |
| Number of ratings | 62 — better | — |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 69 MB | 53 MB |
| Age rating | 12+ | 4+ |
| Developer | ASKSIA INC | Eldar Terzic |
In-app purchases
AskSia
- AskSia - A+3 Days trial$5.997 Days
- AskSia - Plus1 Month trial$14.991 Month
- AskSia - Super$17.991 Month
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- AskSia - A+1 Month trial$29.991 Month
- AskSia - Plus$99.991 Year
- AskSia - Super$143.991 Year
- AskSia - A+$155.991 Year
Gemius
No in-app purchases









