Comparison

9Solver AI vs Revisio

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

Head to head
About

9Solver AI

Features
Read full description

9Solver AI is an all-in-one AI homework helper and study companion. Solve questions from a photo, understand difficult concepts, and turn your learning materials into lessons you can review. Scan questions in Math, algebra, geometry, physics, chemistry, and biology with your camera. Ask AI Tutor for help, turn PDFs and videos into concise summaries, and use the scientific calculator when needed. SOLVE HOMEWORK FROM A PHOTO Use the camera scanner to capture a question, or upload a photo for a fast, clear answer in Math, Physics, Chemistry, Biology, and more. When you want a deeper explanation, use Ask Follow-up to continue in the context of the same question. CREATE STUDY LESSONS Use an AI summarizer to turn PDFs, YouTube videos, webpages, photos, pasted text, and lecture audio into focused study lessons. - Capture key ideas with a concise summary - Generate quizzes and flashcards for active recall - Build mind maps to connect concepts - Record or upload audio for a clear class recap - Keep the original source and generated materials together - Choose an output language that suits your learning AI TUTOR Ask about a concept, equation, or assignment and continue the conversation without losing context. Mathematical notation is displayed clearly for easier reading. SCIENTIFIC CALCULATOR Work through scientific calculations and unit conversions directly in the app. ORGANIZE AND REVIEW Save solved problems and study lessons, organize them by subject and tags, and return whenever you are ready to review. SUPPORTS MAJOR SUBJECTS - Math: algebra, geometry, trigonometry, calculus, statistics, and word problems - Science: Physics, Chemistry, and Biology - Language and humanities: writing, History, Economics, and Literature WHY CHOOSE 9SOLVER AI? - Get fast answers from photos or typed questions - Ask follow-up questions in the correct problem context - Create study lessons from materials you already use - Review with summaries, quizzes, flashcards, and mind maps - Keep your homework and study resources in one place 9Solver AI helps you solve homework faster, study more actively, and turn everyday learning materials into knowledge you can use. SUBSCRIPTION A subscription is required to access all Premium features. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Payment will be charged to your Apple ID account at confirmation of purchase. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings after purchase. Terms of Service: https://9solver.app/term-of-services.html Privacy Policy: https://9solver.app/policy.html

About

Revisio

Features
Read full description

Revisio turns your study material into clear notes, flashcards, and quizzes in seconds. Just paste your content or upload your material, and Revisio instantly transforms it into powerful study tools to help you learn faster. Whether you're preparing for exams, reviewing lectures, or learning a new subject, Renote helps you focus on understanding instead of rewriting notes. Key Features (Subscription Required): - AI Notes Generator: Instantly turn any text, document, or study material into clear, structured notes. - AI Quiz Generator: Create multiple-choice and short-answer quizzes to test your knowledge. - Smart Flashcards: Automatically generate flashcards to help you memorize key concepts faster. Revisio is perfect for : - Students preparing for exams - Reviewing lecture notes - Summarizing study material - Learning new topics faster Stop spending hours rewriting notes. Let Revisio turn your content into notes, flashcards, and quizzes instantly. Start studying smarter today. Details : Question or Feedback email us at : contact@gaith.co Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.gaith.co/privacy

Screenshots

9Solver AI4 screens
Revisio4 screens

Verdict

The call

9Solver AI and Revisio are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 9Solver AI sells 7 in-app purchases, starting at $5.99 per 7 days and Revisio sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

9Solver AI ships an update every 10 days, Revisio every 3 weeks. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

ScorecardNo meaningful differences
9Solver AI versus Revisio: the parameters behind the verdict, then further details
Parameter9Solver AIRevisio
PriceFreeFree
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size110 MB73 MB
Age rating4+4+
DeveloperLe Hoang Thi NgocGaith LLC

In-app purchases

7 purchases

9Solver AI

Subscriptions7
  • Weekly3 Days trial$5.997 Days
  • Weekly$5.997 Days
  • Monthly$29.991 Month
Show 4 more
  • Monthly3 Days trial$29.991 Month
  • Yearly$69.991 Year
  • Yearly3 Days trial$99.991 Year
  • Premium$99.991 Year
2 purchases

Revisio

Subscriptions2
  • Recap Premium Weekly3 Days trial$6.997 Days
  • Recap Premium Yearly$59.991 Year

Questions

Is 9Solver AI free?
9Solver AI is free to download, with in-app purchases available.
Is Revisio free?
Revisio is free to download, with in-app purchases available.
Do 9Solver AI or Revisio have ads?
Neither 9Solver AI nor Revisio shows ads.
Which is updated more often, 9Solver AI or Revisio?
9Solver AI ships an update every 10 days, and Revisio every 3 weeks. Most recently, 9Solver AI was updated on October 24, 2026 and Revisio on October 19, 2026.

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