# S: Stemory – AI Math Tutor — Photo Solver & Visual Lessons

> AI-powered math solver with camera scanning, chatbot, and graph analysis. (iPhone/iPad app by Thang Ho.)

- Source: https://appshunter.io/ios/app/s-stemory-ai-math-tutor/id6738112532 (this page in markdown: same URL + `.md`)
- Developer: [Thang Ho](https://appshunter.io/developer/1747645272)
- Category: Education, Reference
- Price: Free with in-app purchases
- Rating: 4.60/5 from 364 App Store ratings · 17 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.4 · 68 MB
- Languages: American English, Arabic, French (France), Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China), Latin American Spanish, Chinese (Traditional, Taiwan) and 1 more
- Released: 2024-11-18
- Data updated: 2026-11-12
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/s-stemory-ai-math-tutor/id6738112532/reviews.md

## What is S?

What if you could see why a formula works—before you ever had to memorize it?

S: Stemory turns middle and high school math into clear, interactive visual explanations. Built for US Grades 6–12, Stemory combines voiced animated lessons, hands-on interactive controls, and a step-by-step AI tutor that helps you understand how each step works instead of just copying an answer.

SEE THE CONCEPT MOVE
Most confusion in math starts when symbols get disconnected from what they mean. Stemory brings concepts to life with custom animations synchronized to clear voice narration and subtitles:
• Watch ratios, slope, functions, and derivatives unfold step by step on screen.
• See geometric relationships and algebraic steps build visually instead of staring at static diagrams.
• Scrub to any point, turn on Step mode to pause after each part, adjust playback speed, or replay the exact moment an idea comes together.

TOUCH THE MATH IN EXPLORE MODE
Understanding deepens when you test an idea with your own hands. Inside interactive steps and lessons with Explore mode, you can interact directly with the visual:
• Adjust sliders, drag points, and change values on screen to see graphs, shapes, and equations respond in real time.
• Answer interactive prompts built into the lesson flow with immediate visual feedback.

STEP-BY-STEP AI TUTOR: HINTS OR FULL SOLUTION
Stuck on a homework problem or a step inside a lesson?
• Type a math question, tap "Ask about this lesson" while watching, or snap a photo of a homework problem.
• Choose how you want help: "Step-by-step hints" reveals one hint at a time so you can try each part yourself first, while "Full solution" lays out every step and the final answer so you can check your own work.
• Follow up in chat with cleanly typeset math notation and jump straight to related animated lessons.

BUILT FOR THE US GRADES 6–12 MATH CURRICULUM
• 8 US Mathematics courses: Grade 6, Grade 7, Grade 8, Algebra 1, Geometry, Algebra 2, Precalculus, and Calculus—with 199 Semester 1 lessons ready now across the 437-concept curriculum.
• Semester 1 is ready now. Semester 2 lessons are added as each one is finished, through the end of the course.
• Bilingual lessons & flexible notation: Switch lesson voice narration and on-screen text between English and Vietnamese, choose US (1,234.56) or comma-decimal (1.234,56) math notation, and use the app interface in 12 languages.
• Classroom-ready: Save lessons on your device for offline viewing and use Presentation mode for full-screen teaching.

START FREE—NO ACCOUNT REQUIRED
Start learning right away with no sign-up: open 3 animated lessons and ask 3 AI questions every day for free (and re-watch any lesson you already opened today or saved on your device). Upgrade to Stemory Premium (Monthly or Annual) to unlock every lesson with no daily limit plus more daily AI hints, full solutions, and photo scans.

Terms of Use (EULA): https://stemory.app/terms
Privacy Policy: https://stemory.app/privacy

## Key features

- Math scanner with camera
- AI chatbot for instant answers
- Step-by-step homework help
- Graph analysis and visualization
- Virtual math tutor
- Practice quizzes

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| 1 Month Premium Plan | $9.99 | per month |
| Stemory Premium Annual | $59.99 | per year |
| 1 Week Premium Plan | $4.99 | per 7 days |


## What do users think of S?

Reviews of S are mostly positive: the Education app is rated 4.6/5 from 364 App Store ratings. What users like most: great app, helpful. Top complaints: requires paid subscription, limited free usage. Summarized from real user reviews.

**Pros**

- 👍 Great app
- 👍 Helpful
- 👍 Provides right answers
- 👍 Easy to understand

**Cons**

- 💰 Requires paid subscription
- 🐛 Limited free usage

**Commonly reported bugs**

- Subscription issues
- Compatibility problems

**Most requested features**

- Dark mode option
- More free usage

## Is S safe?

S: Stemory – AI Math Tutor appears safe based on user ratings. The AppsHunter Safety Score for S is 91 out of 100. This assessment is based on 364 user ratings, with an App Store average of 4.6 out of 5. Of 364 App Store ratings, 92.3% point to a safe experience, 3.0% suggest some concerns, and 4.7% point to a risky experience.

## Is S legit?

S: Stemory – AI Math Tutor appears to be a legitimate app. The AppsHunter Legitimacy Score for S is 88 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (10 of 17)

All indexed reviews: https://appshunter.io/ios/app/s-stemory-ai-math-tutor/id6738112532/reviews.md

### 5/5 — Good App

*2026-08-31*

Helped out alot‼️🫡

### 5/5 — Good review

*2025-04-03, version 1.2.1*

This app actually works because like I needed to redo a work from school and I was using this app and when I charge my paper and I actually got a 100

### 5/5 — Great app

*2025-03-20, version 1.2.1*

The app is great for all different subjects

### 5/5 — Me gusta

*2025-01-30, version 1.2.1*

Me gusta mucho te la respuesta y el proceso es muy bueno

**Developer response:** ¡Muchas gracias por tu reseña! Nos alegra saber que te gusta la respuesta y el proceso. Seguimos trabajando para agregar nuevas funciones útiles y hacer que la experiencia sea aún mejor. ¡Esperamos que sigas disfrutando de la aplicación! 😊

### 3/5 — helps

*2025-01-26, version 1.2.1*

good!

**Developer response:** Thank you for your review! We’re glad to hear the app has been helpful for you. We’re constantly adding new features to make solving problems even easier—stay tuned for more updates! 😊

### 5/5 — Good!

*2025-01-25, version 1.2.1*

So Good!!!! Have the right answer and is easy to understand.

**Developer response:** Thank you for your review! We’re thrilled to hear you find the app accurate and easy to use. We’re also working hard to add more features to make solving problems even smoother for you. Stay tuned for updates! 😊

### 5/5 — I love this app it’s help me

*2025-01-25, version 1.2.1*

I love this app it’s help me

**Developer response:** Thank you for your lovely feedback! We’re delighted the app has been helpful to you. We’re constantly working on adding new features to make your experience even better. Let us know if there’s anything more you’d like to see! 😊

### 5/5 — Way better than ChatGPT

*2025-01-22, version 1.2.1*

Way better than ChatGPT

**Developer response:** Thank you for your kind words! We’re so happy to hear you’re enjoying the app. We're continuously adding new and exciting features to make it even better and more helpful for your needs. Stay tuned! 😊

### 5/5 — Great app

*2025-01-21, version 1.2.1*

Great app

**Developer response:** Thank you so much for your kind words, Kade3743! 😊 We're thrilled to hear you're enjoying the app. Your support means the world to us and motivates us to keep adding new and exciting features. Stay tuned for even more updates! 🚀🙏

### 2/5 — Not the best

*2025-01-16, version 1.2.1*

I personally don’t really like this app because it only let me do a few problems until it started to make me pay for it. If I was able to pay for the subscription then I would probably like it more, but I’m broke so I can’t get the subscription.

**Developer response:** Thank you for sharing your thoughts, Flamingo_Lover11! We’re glad you gave our app a try and truly appreciate your honest feedback. We’ll continue exploring ways to make the app more accessible while maintaining its quality. Your feedback helps us grow and improve—thank you again! 😊

## Frequently asked questions about S

### What does AI Math Solver do?

AI Math Solver helps users solve math problems by allowing them to snap a photo of the equation. It provides instant answers, detailed step-by-step explanations, and can also analyze graphs. The app features an AI chatbot for further assistance and acts as a virtual math tutor for homework and exam preparation.

### What are the key features of AI Math Solver?

Key features include a math scanner that solves problems from photos, an AI chatbot powered by GPT for instant answers and homework help, step-by-step explanations for quizzes and assignments, tools to analyze and visualize graphs, and a virtual tutor experience for various math subjects like algebra and calculus. It also offers practice problems and quizzes to improve skills.

### Is AI Math Solver free to use?

The app offers free access to essential features, allowing users to solve problems and get basic help. For unlimited access to all tools and premium features, users can upgrade through in-app purchases. The description also mentions an ad-free experience.

### What kind of math problems can this app solve?

This app is designed to handle a wide range of math problems, from basic practice exercises to complex equations. It supports subjects like algebra, geometry, and calculus. The AI scanner and chatbot can assist with tricky equations, homework questions, and quiz preparation.

### Who is the target audience for AI Math Solver?

The app is ideal for students at all levels, including middle school, high school, and college. It's also beneficial for parents who need assistance helping their children with math homework, or for anyone looking to refresh or improve their math skills.

## Version history (last 5 releases)

### 2.0.0 — 2026-11-11

Our app is now S: Stemory—rebuilt to help you see why math works through voiced animated lessons and step-by-step AI guidance for the US Grades 6–12 curriculum.

• Existing subscribers: Your active subscription automatically carries over to Stemory Premium with full benefits (you can also tap "Restore purchases" anytime in Settings).
• 199 Semester 1 US Math lessons across Grade 6, Grade 7, Grade 8, Algebra 1, Geometry, Algebra 2, Precalculus, and Calculus, with voice narration and subtitles in English and Vietnamese.
• Interactive Explore mode and in-lesson steps where you can adjust sliders, points, and parameters directly on screen.
• Step-by-step AI tutor: type a question, ask inside any lesson, or snap a homework photo, and choose between Step-by-step hints or a Full solution.
• Free every day with no account required: 3 animated lessons and 3 AI questions per day, or unlock unlimited lessons and more daily AI help with Stemory Premium.

### 1.2.1 — 2024-12-20

- Enhanced app performance.
- Better rendering of formulas and expressions.

### 1.2.0 — 2024-12-16

- Bug fixes
- Formula display improvement

### 1.1.2 — 2024-12-06

- Bug fixes
- Performance improvements

### 1.0.1 — 2024-12-02

- Performance improvements

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-12.*