# AI CogniSphere

> AI CogniSphere (iPhone/iPad app by YiAn Hsueh.)

- Source: https://appshunter.io/ios/app/ai-cognisphere/id6760450042 (this page in markdown: same URL + `.md`)
- Developer: [YiAn Hsueh](https://appshunter.io/developer/1825079989)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.6 · 11 MB
- Languages: English
- Released: 2026-03-25
- Data updated: 2026-07-09
- User reviews in markdown: https://appshunter.io/ios/app/ai-cognisphere/id6760450042/reviews.md

## What is AI CogniSphere?

CogniSphere is a knowledge graph tool designed to help you organize notes, study materials, images, and PDFs in one place. Capture content with your camera, import images from your photo library, or add PDFs, then use OCR to extract text and AI to assist with drafting knowledge points before saving them to your personal knowledge base.

You can also create knowledge points manually and build connections at your own pace. Each node can include images, PDFs, text notes, web links, and voice memos, making it easier to turn scattered information into a structured body of knowledge.

The interactive graph supports dragging, zooming, and multiple layout options, so you can explore relationships between ideas from both a big-picture and detailed view. It is useful for reading notes, class materials, research organization, and personal knowledge management.

Use CogniSphere to:

Organize study notes and learning materials
Build topic-based knowledge structures
Keep images, PDFs, and notes connected in one context
Review how concepts relate to one another visually
Continue your workflow across iPhone and iPad

Data can sync across compatible devices so you can continue organizing wherever you work. Some AI, OCR, PDF summarization, website preview, sync, or subscription-related features may process relevant data only when you actively use those features and only to the extent necessary. Actual features, pricing, and terms are shown in the app.

Privacy Policy:
https://eric1207cvb.github.io/CogniSphere/

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| CogniSphere Pro Monthly | $3.99 | per month |



## Version history (last 1 release)

### 1.0 — 2026-03-25

No release notes.

## More apps by YiAn Hsueh

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- [國語辭典簡編本](https://appshunter.io/ios/app/id6756899191)

All apps by YiAn Hsueh: https://appshunter.io/developer/1825079989

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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 2026-07-09.*