PupilBot vs Synapsi
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
PupilBot
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Photograph what you study โ get quizzed before you forget. PupilBot turns your handwritten notes, textbook chapters, and printed handouts into practice questions. Snap a page with your camera โ or import a PDF and pick the pages you need โ and within seconds you have a personalized quiz built from exactly what you chose to learn. Then PupilBot checks in with review questions right before the material starts slipping away. HOW IT WORKS Bring in the pages. Open the camera and snap a chapter, your notes, a few slides โ or load a PDF and pick the pages or chapters you need. Our OCR engine reads every line and pulls out the key topics. Practice adaptively. Six question shapes โ single-choice, multi-choice, fill-in-the-blank, matching, numeric, free-form โ picked for what you're learning. The system tracks where you're strong and where you need work, adjusting difficulty in real time. Remember it. FSRS-6 spaced repetition brings every card back the moment you'd start to forget. Bayesian Knowledge Tracing keeps a running mastery estimate per topic, so you always know what still needs work. FEATURES Camera or PDF โ snap the pages, or pick the chapters you need out of a PDF. You choose what to study Six question formats, picked automatically for what's in front of you Adaptive difficulty that scales with your progress FSRS-6 spaced repetition โ the latest generation of memory-aware scheduling Per-topic mastery tracking with Bayesian Knowledge Tracing (BKT) Free-form answers checked intelligently, not just by keyword Study quietly inside Telegram between sessions โ same engine, same memory Works with handwritten notes, printed text, slides, and diagrams WHO IT'S FOR Students preparing for exams. Professionals studying for certifications. Anyone who reads to learn and wants the material to stay learned. If you've ever finished a chapter and realized you couldn't remember it the next week, PupilBot was built for you. Free to start. Sign up and begin studying today. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://pupilbot.com/privacy
Synapsi
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Most study apps make the flashcards. Synapsi checks you actually learned them. Turn any lecture, PDF, or YouTube video into AI flashcards, a quiz, a summary, and a mind map in seconds. Then prove you know it: Synapsi runs real spaced repetition and an AI-judged Feynman teach-back that grades whether you can explain the idea in your own words. MORE SOURCES, SAME STUDY KIT Synapsi also reads web articles and short video links from TikTok, Instagram, X, and Facebook. Paste the link, get the transcript and the full study kit. Free tools (transcript, summarizer, flashcard maker) live at synapsi.guru/tools and need no account. Synapsi is free to download and includes a free preview: your first study kit, with a sample of its flashcards, quiz, and summary. Full study kits and the AI study tools below require a Synapsi Pro subscription or one-time lecture credits. WHAT SYNAPSI DOES (requires Pro or lecture credits) AI flashcard maker: auto-generate flashcards from any source. PDF to flashcards, YouTube to flashcards, lecture notes to flashcards. Spaced repetition that works: a real SM-2 system schedules reviews at the right time so facts stick. Built for exam prep and revision. Quiz generator: turn your notes into a practice quiz with instant feedback. AI summarizer: get a clean summary of a long PDF or hour-long lecture in seconds. Mind map generator: see how ideas connect with a visual mind map of your material. YouTube transcript and notes: pull the transcript from any video and turn it into study notes, flashcards, and a quiz. Feynman teach-back: explain a concept, and the AI judges your answer against the source and shows your gaps. If you can't explain it, you haven't learned it yet. AI study chat: ask questions about your own notes and get answers with citations. Smart reminders: one nudge a day, built from what is actually due. Set an exam date and Synapsi counts down to it. PERFECT FOR - Students cramming for exams and finals - College and university revision - Med, law, and language learners - Anyone who reads PDFs or watches lectures and wants to remember them WHY IT WORKS Making flashcards feels like studying. It isn't. Real learning is recall and explanation. Synapsi uses spaced repetition to make you recall and the Feynman technique to make you explain. Stop highlighting. Stop re-reading. Start proving you learned it. SUBSCRIPTION & CREDITS Synapsi is free to download. Your first study kit is a free preview. Full access requires a purchase: - Synapsi Pro: unlimited notes and every study tool. An auto-renewable subscription billed monthly or yearly (a one-time Lifetime option is also available). Your subscription renews automatically unless canceled at least 24 hours before the period ends. Manage or cancel anytime in your App Store account settings. - Lecture credits: one-time purchases. One credit buys one full lecture's study kit, with no subscription. The current prices and lengths are always shown on the purchase screen before you buy. TERMS & PRIVACY Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://synapsi.guru/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Synapsi at none against PupilBot's 2. Synapsi also leads on iOS requirement (18.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. PupilBot sells 2 in-app purchases, starting at $4.99 per month. Synapsi asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.
| Parameter | PupilBot | Synapsi |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days | Every 2 days |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPad, Mac โ better |
| Requires iOS | 26.0 | 18.0 โ better |
| Further details โ not scored | ||
| Size | 8 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Gabriel Policiuc | Khoa Tran |
In-app purchases
PupilBot
- Premium Monthly$4.991 Month
- Premium Yearly$39.991 Year
Synapsi
No in-app purchases








