# StudyNote Seiza: AI Tutor — Study any topic, step by step

> Study any topic, step by step (iPhone/iPad app by Mikoto Perut.)

- Source: https://appshunter.io/ios/app/studynote-seiza-ai-tutor/id6760433473 (this page in markdown: same URL + `.md`)
- Developer: [Mikoto Perut](https://appshunter.io/developer/1884454421)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 50 MB
- Languages: American English, German (Germany), Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2026-05-15
- Data updated: 2026-10-28

## What is StudyNote Seiza?

StudyNote Seiza is an AI tutor that teaches you one idea at a time. It does not just answer: it finds out what you already know, explains what you are missing, and checks that you can explain it yourself.

START WITH WHAT YOU WANT TO UNDERSTAND
Type a question, a topic, or the book you want to learn, or add a PDF or a photo. "Why doesn't a spinning top fall over?" is enough to start.

IT CHECKS WHAT YOU KNOW FIRST
Before teaching, the tutor asks a few short questions, and you say how sure you are. Being sure and wrong points to a misconception, so it is fixed first.

A PLAN MADE FOR YOU
The tutor draws a map of the ideas you need and the order they build on each other, then teaches only the parts you have not got yet.

TAUGHT, THEN CHECKED
Each idea comes with an explanation, math written as formulas, and, when it helps, a figure the AI drew and checked or an interactive demo you can play with. Then you predict, answer, or explain it in your own words, because writing it yourself is what makes it stick.

LEARN FROM YOUR OWN MATERIALS
Add PDFs, EPUB books, Word and PowerPoint files, or text. The tutor reads the pages it needs and teaches from them. With research on, it can also search the web.

REMEMBER WHAT YOU LEARNED
- Review brings ideas back on a spaced schedule, and each lesson can start by recalling earlier ones.
- Past questions keeps every question you answered, so you can retry the ones you missed.
- Practice mixes ideas from different lessons.
- Your sky: each idea you learn lights up as a star, and related ideas join into constellations.
- Lessons sort themselves into subjects and fields.

CHOOSE YOUR AI
Use your own API key from OpenAI, Anthropic, Google, OpenRouter, DeepSeek, or xAI. Your lessons go straight from your device to that provider, and the app shows what each session cost at the provider's list prices. Or use Studio Uchu AI with no key at all.

STUDIO UCHU AI (OPTIONAL)
A shared membership that needs no API key. It requires Sign in with Apple and your consent. Usage is measured in AI Credits: Lite includes 800 and Studio includes 4,500 per subscription period. Lite and Studio are auto-renewing monthly subscriptions; they renew unless canceled at least 24 hours before the end of the period, and you can manage or cancel them in App Store settings. Need more? An AI Credit Pack is a one-time purchase that adds about 5,000 AI Credits (the exact amount follows the price paid after tax) that never expire. Subscription credits are used first; requests paid with a pack use OpenAI's GPT-6 Luna through OpenRouter.

YOUR DATA
Your lessons are stored on your device, or in your own iCloud Drive if you choose. Before any AI service receives your lessons for the first time, the app shows who will receive them and asks for your permission. No ads, no tracking.

TRY IT FREE
The built-in tutorial takes about 10 minutes and uses no AI.

FROM AN EARLIER VERSION?
Your questions and notes are kept: open them from Settings → Previous version. Everything Seiza Pro used to unlock there is now free.

Terms of Use (Apple Standard EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Privacy Policy:
https://studiouchu.com/studynote-seiza-app/privacy/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Studio Uchu AI Lite | $2.99 | per month |
| Studio Uchu AI studio plan | $12.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| AI Credit Pack | $9.99 | one-time |
| Support the developer | $1.99 | one-time |


## Is StudyNote Seiza safe?

Not enough ratings yet to assess StudyNote Seiza.

## Is StudyNote Seiza legit?

StudyNote Seiza: AI Tutor appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for StudyNote Seiza is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 2.0 — 2026-10-26

StudyNote Seiza 2.0 is a new app: an AI tutor that checks what you already know, teaches with figures and live demos, and asks you to explain ideas back.
- Now in German and Chinese.
- Use your own AI key, or Studio Uchu AI with no key.
- New: AI Credit Pack, credits that never expire.
- Review, Past questions, Practice, and your sky of learned ideas.
- Seiza Pro is no longer sold, and everything it unlocked is now free. Your earlier questions and notes are in Settings → Previous version.

### 1.2 — 2026-09-17

better UI.　New design

### 1.1 — 2026-09-15

New design, new features

### 1.0 — 2026-06-10

No release notes.

## More apps by Mikoto Perut

- [Noise Palette](https://appshunter.io/ios/app/noise-palette/id6770070762)
- [threedailyjoys](https://appshunter.io/ios/app/threedailyjoys/id6770981835)
- [Prep the day](https://appshunter.io/ios/app/prep-the-day/id6774188981)
- [A Quiet Mind](https://appshunter.io/ios/app/a-quiet-mind/id6775216560)
- [Talksim: AI Conversation](https://appshunter.io/ios/app/talksim-ai-conversation/id6776572463)

All apps by Mikoto Perut: https://appshunter.io/developer/1884454421

---

*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 2026-10-28.*