# 密密本 Pocket Book — Offline password book—no cloud

> Offline password book—no cloud (iPhone/iPad app by Ya Chun Chung.)

- Source: https://appshunter.io/ios/app/pocket-book/id6823041472 (this page in markdown: same URL + `.md`)
- Developer: [Ya Chun Chung](https://appshunter.io/developer/6822616799)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 44 MB
- Languages: American English, Chinese (Traditional, Taiwan)
- Released: 2026-10-28
- Data updated: 2026-11-11

## What is 密密本 Pocket Book?

Pocket Book is a password book that lives in your phone and locks.

You write down a site, its account and its password. When you need one, you find it the way you would in a phone book: by its tab on the thumb index. That is all it does.

Never goes online. Pocket Book has no server and sends nothing anywhere.
No account. Open the app, set a six-digit PIN, and start writing. Face ID can open it too.
No autofill. When you need a password, tap Copy; the clipboard clears itself after 30 seconds.
Nothing leaves in plain text. Accounts, passwords and notes are encrypted with AES-256 before they are saved. The only way out is an encrypted backup file, locked with a separate password of your choosing, that only Pocket Book can open. There is no plain-text export, and there will not be one.

Like a real book
• Eleven looks: rice paper, ledger, black notebook, directory, stationery, stitched, squared, lined, cash book, sticker book, doodle book. Three are free; try the others on before you decide.
• Ten typefaces: serif, fangsong, kai, Iansui, a rounded face, four handwriting faces and a playful one; each look remembers its own.
• Light and dark follow the phone, or pick one.

Easy to find
• Thumb index: every name goes to its tab, Chinese by bopomofo, the rest by letter. One swipe and you are there.
• By category: flip the book by Bank, Email, Shopping or any label you make up.
• Star the ones you use most.
• Old passwords are kept, struck through under the new one, never overwritten.

Free and full
The free version holds twenty entries and three of the looks (Lined, Stationery, Cash Book), and is otherwise the same. The full version has no limit and every look; you pay once, with no subscription. After the free twenty, everything you wrote can still be read, edited, copied and exported, and a look already on the book stays on.

What Pocket Book deliberately does not do: generate passwords, rate them, fill them in, run a browser extension, sync to a cloud. It is only a book.

If you forget your PIN, the book cannot be opened, not even by us. Keep it safe, or keep an encrypted backup.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Full Version | $0.99 | one-time |


## Is 密密本 Pocket Book safe?

Not enough ratings yet to assess 密密本 Pocket Book.

## Is 密密本 Pocket Book legit?

密密本 Pocket Book has limited verification signals. The AppsHunter Legitimacy Score for 密密本 Pocket Book is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.2 — 2026-11-01

Two cute books, and a roomier free version.

• The free version now holds twenty entries (it was ten) and three looks: Lined, Stationery and Cash Book.
• Tap any other look and the book really puts it on to try, with a line underneath: Trying on · Change back · Buy the full version. A look already on the book is never taken off.
• The full version is now unlimited entries plus all eleven looks, still bought once, no subscription; if you already bought it, you have them.
• Sticker Book: a pink book with round sticker tabs and paw stickers on the cover, the labels and the corners of the pages.
• Doodle Book: a book drawn by a child with a marker. A night-sky cover with a kid holding up a star, every box and line drawn by hand, a kid and a princess peeking in at the corners; in dark mode the whole book is the night sky.

### 1.1 — 2026-10-30

This version makes the book more of a book.

• Pages turn: a page curls over like paper. One page per letter; tap a tab on the right to turn straight to it, and turning back past the first page shows the cover.
• All: the whole book on one long page, no categories first; turn forward to go into the pages.
• Once an entry is open, keep turning: the previous and the next entry.
• Pick a book: the first launch asks you to choose one of nine, each shown as a small real page; Settings › Appearance has the same set.
• Every category has an ink of its own, and the stamps and index tabs follow it; change it in Settings › Book › Categories.
• Six more typefaces: a Fangsong, a rounded face, three handwriting faces and a playful one. Each style remembers its own.
• In the two ledgers every line now sits on a rule.
• Search moved to the top, Favorites sits with the sort order, and Settings is in the footer at the bottom right.

### 1.0 — 2026-10-28

No release notes.

## More apps by Ya Chun Chung

- [I Did It: Kids Habit Builder](https://appshunter.io/ios/app/i-did-it-kids-habit-builder/id6822616797)

All apps by Ya Chun Chung: https://appshunter.io/developer/6822616799

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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 2026-11-11.*