# PageGrain — Every book leaves a mark.

> Every book leaves a mark. (iPhone/iPad app by Du Wenyu.)

- Source: https://appshunter.io/ios/app/pagegrain/id6767551392 (this page in markdown: same URL + `.md`)
- Developer: [Du Wenyu](https://appshunter.io/developer/1896486913)
- Category: Books, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.2 · 135 MB
- Languages: English, French, German, Japanese, Korean, Portuguese, Chinese, Spanish, Chinese
- Released: 2026-05-15
- Data updated: 2026-09-25
- User reviews in markdown: https://appshunter.io/ios/app/pagegrain/id6767551392/reviews.md

## What is PageGrain?

"Reading maketh a full man." — Most of us finish a book and walk away empty anyway.
PageGrain turns your Kindle and WeChat Reading highlights into a personal knowledge base that actually works for you:AI-polished notes — scattered highlights refined into clear, readable summaries you'll actually want to revisitDaily memory drills — "Use it or lose it." Bite-sized quizzes built from your own notes, so knowledge sticks without the effortTheme clustering — similar ideas from different books, automatically connected; "collect the dots, then connect them"Instant search — browse by book or search any keyword, and find exactly what once stopped you mid-page"It is not the man who has too little who is poor, but the man who hankers after more." Read less. Retain more.
The measure of reading isn't how much you've read. It's how much remains.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| 月会员 | $1.99 | per month |
| 年会员 | $19.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 终身会员 | $29.99 | one-time |



## Version history (last 4 releases)

### 1.0.3 — 2026-06-05

Fix bug

### 1.0.2 — 2026-05-25

Fix bug

### 1.0.1 — 2026-05-16

First release version.

### 1.0 — 2026-05-15

No release notes.

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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 2026-09-25.*