Comparison

rozeta vs Stdy AI

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

rozeta

This AI-powered study tool helps university students make the most of recorded lectures. It synchronizes audio with slides, provides accurate transcripts and AI-generated study content, and offers lecture translation for non-native speakers.

Highlights
  • Slide-synced lecture recording
  • High-quality lecture subtitles and scripts
  • AI-generated study content reflecting professor's points
  • Lecture translation for English and other languages
  • Organized lecture review by slide
Read full description

rozeta is an AI lecture notes app for college students. Write while you record, and rozeta creates transcripts, explanations, translations and quizzes. β–  Handwriting and recording, linked page by page Import your lecture slides as a PDF file and write on each page while you record. When the slide changes, tap the Mark button. The recording so far is linked to that page, and your note moves to the next page. When you review, tap a page to hear the explanation from that point. β–  Speech recognition that gets technical terms right Lectures that mix Korean and English are transcribed exactly as your professor said them. - Terms spoken in Korean are written in Korean with the English in parentheses, and terms spoken in English stay in English. - Formulas, symbols and units use standard notation. - Add technical terms or proper nouns under Vocabulary, and they're transcribed just as you wrote them. β–  AI explanations built on what your professor said Explanations don't rely on the slides alone. They're based on what your professor explained and emphasized in class, and they take the handwriting on each page into account. You can also create an overview that puts a whole lecture into one document. β–  AI quizzes made from your class Questions come from what was covered in class. Take a quiz before the exam, and replay the part of the lecture behind any question you missed. A cumulative quiz combines several lectures so you can check everything on the exam at once. β–  Lectures in another language, translated Whatever language the class is in, transcripts can be translated. Translations and AI explanations are available in Korean, English, Japanese, Chinese, Spanish, French and German. β–  Premium handwriting Your Apple Pencil's pressure comes through with no lag. You get pens, highlighters, shapes, the lasso and text, plus 8 paper types. β–  Pick up on any device Notes and recordings are saved to the cloud. Open them on iPad, iPhone or the web, and playback picks up where you left off. Made for students who - record lectures but rarely listen back - want handwriting, lecture recordings and review in one place - want accurate transcripts of lectures full of technical terms - want to review lectures given in another language in their own - want AI study help that reflects what their professor said rozeta is made by Rozeta Inc. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://rozeta.io/privacy

About

Stdy AI

This AI-powered learning app helps students efficiently organize lecture materials, notes, and recordings. It summarizes complex documents, generates practice quizzes, and offers AI chat support for quick clarification. Features include automatic note-taking from lectures, flashcards, and memorization tools for effective exam preparation.

Highlights
  • AI lecture material summarization
  • Automatic lecture note-taking
  • Practice exam generation
  • Exam paper analysis and problem generation
  • Flashcard creation for repetition
  • Memorization notebook
  • AI chat for study questions
  • 90+ language support for lecture recording
Features
Read full description

NEW: Study with Apple Pencil on iPad Write directly on your PDFs and summaries, and split the screen to solve a quiz on one side while taking notes on the other. Spent so much time organizing lecture materials and notes that you haven't even started studying for your exam? Stdy AI is an AI study app that summarizes your lecture materials, lecture recordings, and YouTube lectures, creates questions likely to appear on your exam, and carries you through memorization and review, all in one place. 1. Lecture Recording & Live Transcription As you record, the lecture turns into text in real time. When you finish, the whole transcript is polished once more: speakers are separated and sentences are cleaned up. During playback, the sentence being spoken is highlighted, so you can jump straight to the part you want. Fix any misheard words and your summary updates too, and you can upload lecture videos or audio files you've already recorded to turn them into text. 2. iPad Handwriting & AI Summaries On iPad, write directly on PDFs and summaries with Apple Pencil using pens, highlighters, and shapes. Upload PDF, PowerPoint, Word, or image files to get just the key points, and summarize the whole file or only the pages you need. Tailor summaries to your style by describing the tone you want or points that must be included, and add detailed explanations that break down concepts along with illustrations that aid understanding. Each summary ends with an "At a Glance" table that recaps the essentials, and tapping a page number or timestamp in the summary takes you straight to that part of the original. You can edit summaries yourself or export them as PDFs. 3. Quizzes, Mock Exams & Past Exam Analysis Create questions likely to appear on your exam from your own materials. Choose the question types and difficulty you want, including multiple choice, true/false, fill-in-the-blank, essay, and calculation problems. Essay answers are graded by AI, which gives you a score and tells you what your answer is missing. Explanations cite the page numbers they're based on, and you can retry missed questions in your wrong-answer notes. Take mock exams built from multiple materials, or upload past exams and old test papers to get detailed solutions and similar practice questions. 4. Flashcards, Memorization Notes & Mind Maps Use flashcards to repeat only the concepts that confuse you, and Memorization Notes to collect just what you need to memorize and practice with blanks covering the key words. Mind maps show the flow of an entire chapter at a glance. 5. AI Chat & AI Podcasts Stuck while studying? Ask the AI right away, with answers based on your own materials. Attach a PDF or photo to start a conversation about that file instantly, and tap a page number in an answer to open the original right beside it. You can also turn your materials into a podcast in which two hosts explain them in conversation, and listen on the go. 6. Notes & Split Screen In Notes, mix typed text and handwriting to organize what you learn. On iPad, split the screen to keep a quiz on one side and your notes on the other, so you can take notes while you solve. 7. YouTube Lectures & Combined Study Just paste a YouTube lecture link to get a summary and a quiz, and tap a timestamp in the summary to watch from that moment. You can also combine multiple materials, such as PDFs, recordings, and YouTube videos, and study them together at once. 8. Folders, Study Calendar & Study Lab Organize materials into folders by subject and note your exam dates in the Study Calendar. Share materials with friends through a link, and in Study Lab, rotate 3D models of human anatomy, cells, and molecules to learn their structures. Continue studying on iPhone, iPad, and the web (stdyai.com) with the same account. Terms of Use: https://stdyai.com/terms/en Privacy Policy: https://stdyai.com/privacy/en

Screenshots

rozeta4 screens
Stdy AI4 screens

Verdict

The call

The clearest difference is ads: Stdy AI at none against rozeta's shown. On price, review sentiment, update cadence and in-app purchases there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. rozeta sells 7 in-app purchases, starting at $6.99 per month and Stdy AI sells 4 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

rozeta ships an update every 6 days, Stdy AI every 11 days. Both last shipped on November 5, 2026.

Scorecard1 real difference Β· 7 level
rozeta versus Stdy AI: the parameters behind the verdict, then further details
ParameterrozetaStdy AI
PriceFreeFree
Positive reviews100.0% of reviews100.0% of reviews
Update frequencyEvery 6 days β€” betterEvery 11 days
AdsYesNo β€” better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 β€” better
Further details β€” not scored
Size73 MB18 MB
Age rating4+4+
DeveloperYujin ChaTrend Vibe

Customer experience

rozeta

Written reviews12 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Stdy AI

Written reviews36 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

7 purchases

rozeta

Subscriptions4
  • Basic Plan$6.991 Month
  • Standard Plan$9.991 Month
  • Premium Plan$14.991 Month
Show 1 more
  • Max 2Γ—$22.991 Month
One-time3
  • AI credits 500$0.99
  • credits-2000$2.99
  • credits-5000$6.99
4 purchases

Stdy AI

Subscriptions4
  • Study AI Pro Monthly$6.991 Month
  • μŠ€ν„°λ”” AI Pro$34.996 Months
  • Stdy AI Pro Yearly (Promotion)$44.991 Year
Show 1 more
  • μŠ€ν„°λ”” AI Pro$59.991 Year

Questions

Is rozeta free?
rozeta is free to download, with in-app purchases available.
Is Stdy AI free?
Stdy AI is free to download, with in-app purchases available.
Do rozeta or Stdy AI have ads?
rozeta shows ads; Stdy AI does not.
Which is updated more often, rozeta or Stdy AI?
rozeta ships an update every 6 days, and Stdy AI every 11 days. Most recently, rozeta was updated on November 5, 2026 and Stdy AI on November 5, 2026.

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