ComicPDFReader vs 密密本 Pocket Book
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ComicPDFReader
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If you read comics, scanned books, or PDFs, you’ve probably fought awkward spreads, the wrong page direction, or lost your place. ComicPDFReader is built around double-page reading. Switch anytime between left-to-right and right-to-left (manga). Single-page mode is there when you need it. Progress and recent files resume automatically. The UI stays light on iPhone, iPad, and Mac. Who it’s for • Comics, manga, and scanned spreads that need a true two-page view • Readers who switch between LTR and RTL • Clean PDF / ebook reading without clutter Highlights • Double-page: choose LTR or RTL (manga) • Single-page browsing • Auto resume and recent files • Simple UI across iPhone, iPad, and Mac Your spreads, your direction—keep reading.
密密本 Pocket Book
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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.
Screenshots
Verdict
The clearest difference is in-app purchases: ComicPDFReader at none against 密密本 Pocket Book's 1. ComicPDFReader also leads on device support (3 vs 1). 密密本 Pocket Book's advantage is update cadence (every 2 days vs every 3 months). On price, ads and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. 密密本 Pocket Book sells 1 one-off in-app purchase. ComicPDFReader asks for nothing beyond the download.
ComicPDFReader ships an update every 3 months, 密密本 Pocket Book every 2 days. The most recent releases landed on November 12, 2026 and November 11, 2026 respectively.
| Parameter | ComicPDFReader | 密密本 Pocket Book |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 17.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | HSIA-TING YEH | Ya Chun Chung |
In-app purchases
ComicPDFReader
No in-app purchases
密密本 Pocket Book
- Full Version$0.99





