# GemReader: Ebook Study Reader — EPUB & PDF, Notes, Flashcards

> Offline EPUB/PDF reader with integrated study tools and encrypted library. (iPhone/iPad app by Johan Christopher Nohall.)

- Source: https://appshunter.io/ios/app/gemreader-ebook-study-reader/id6814832827 (this page in markdown: same URL + `.md`)
- Developer: [Johan Christopher Nohall](https://appshunter.io/developer/6814832829)
- Category: Books, Education
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 18.0 · 87 MB
- Languages: American English, Amharic, Arabic, Burmese, Khmer, French (France), German (Germany), Hindi, Indonesian, Japanese and 8 more
- Released: 2026-11-02
- Data updated: 2026-11-12
- Monetization: free

## What is GemReader?

GemReader is an offline EPUB and PDF reader that saves everything you do inside a book — your form answers, highlights, notes, and flashcards. Built for people who read to learn, not just to finish.

No account. No tracking. Your library is encrypted on your device, and backups are optional.

YOUR FORM ANSWERS ARE SAVED
Most ebook readers throw away what you type. GemReader doesn't. Fill in a workbook exercise, close the book, come back a week later — your answers are exactly where you left them. Every text field, checkbox, dropdown, and radio button in an interactive EPUB is saved automatically.

HIGHLIGHT AND ANNOTATE
Highlight passages in six colors and attach a note to any highlight. Add standalone text notes, bookmarks, and notes pinned to images. Notes support Markdown. Tag anything you keep, name the highlight colors yourself, and see every highlight and note from your whole library in one searchable list. Keep PIN-locked notebooks, and store videos, diagrams and photos encrypted beside your books.

STUDY TOOLS BUILT IN
Look up any word in the in-book dictionary without leaving the page. Turn your highlights into flashcards and drill them with the built-in spaced repetition review deck. Export annotations to Anki, or import your existing .apkg and .txt decks straight into the app.

FREE BOOKS TO START WITH
Browse Project Gutenberg, Standard Ebooks and other open catalogs from inside the app and download straight into your library. Add any OPDS catalog you trust. Downloads are encrypted on arrival, like every other book.

LISTEN TO YOUR BOOKS
A neural text-to-speech voice reads any book aloud, generated entirely on your device — no cloud, no account, and no connection needed once the voice is installed. Books that ship with their own chapter audio play that instead, with lock-screen playback controls.

PDF READER INCLUDED
Open PDFs alongside your EPUBs. Fixed-layout rendering, working links and form fields, pinch-to-zoom, full-text search, and dark mode.

ENCRYPTED LIBRARY
Your books are encrypted at rest with AES-256-GCM. No plaintext file ever touches disk. Lock individual collections behind their own key, and lock the whole app with Face ID or a PIN when you put it down. Your books stay yours.

BUILT FOR OFFLINE READING
Everything works with the network off. No account is required, and nothing is uploaded unless you turn on encrypted backup to your own Google Drive.

ORGANIZE A REAL LIBRARY
Grid and list views, nested collections with custom colors, cover art, full-text search across your library, table of contents, footnotes, image zoom, and reading history so you can jump back to where you were three chapters ago.

MADE COMFORTABLE TO READ
Light, dark, sepia, and high-contrast Ultra themes. Adjustable fonts, margins, and layout. Immersive full-screen reading. Tablet support on iPad. Interface available in 18 languages: English, Spanish, Portuguese, Hindi, Indonesian, French, German, Russian, Arabic, Chinese, Japanese, Korean, Burmese, Khmer, Amharic, Turkish, Vietnamese, and Thai.

SHARE WITHOUT THE CLOUD
Gem Beam hands a book, or a whole collection, to the phone next to you directly, device to device — no internet, no account, nothing leaving the room. Highlights, notes, reading position and study progress travel with them. You can also export a book as an encrypted .gem pack, optionally as a scannable QR code, or turn a favorite passage into a shareable quote card image.

WHO IT'S FOR
• Students working through interactive textbooks, workbooks, and study guides
• Language learners who need a dictionary, flashcards, and audio in one place
• Researchers and professionals who annotate heavily and need it to stay put
• Anyone who wants a private, offline ebook reader with no account attached

GemReader reads DRM-free EPUB, PDF, MOBI, AZW3, FB2, CBZ and TXT files. Import from your device, share into the app, or download from the catalogs above.

Note: iOS doesn't let apps block screenshots or screen recording.

## Key features

- Save form answers in interactive ebooks
- Highlighting with 6 colors and notes
- Create flashcards from highlights
- Spaced repetition review deck
- Offline EPUB and PDF reading
- Encrypted library with optional backups
- Text-to-speech for books

## Is GemReader safe?

Not enough ratings yet to assess GemReader.

## Is GemReader legit?

GemReader: Ebook Study Reader has limited verification signals. The AppsHunter Legitimacy Score for GemReader is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about GemReader

### Does GemReader have ads?

GemReader is ad-free, allowing for an uninterrupted reading and study experience. The app is completely free to use without any advertisements.

### What devices does GemReader support?

GemReader is available for iPhone and iPad devices. It is designed to provide a comfortable reading experience on both platforms.

### How does GemReader save my work?

GemReader automatically saves all your form answers, highlights, notes, and flashcards directly within the book files. Your progress is preserved even when you close the app or book.

### Can I use GemReader offline?

Yes, GemReader is built for offline reading. All features, including reading, note-taking, and flashcard review, work without an internet connection.

### Is my library secure with GemReader?

Your library is encrypted on your device using AES-256-GCM. You can also lock individual collections or the entire app with a PIN or Face ID for added security.

### How often is GemReader updated?

The latest version of GemReader is 1.51.0, last updated on November 5, 2026. Updates are released regularly to improve functionality and add new features.

### Can I listen to my books with GemReader?

Yes, GemReader includes a neural text-to-speech voice that reads any book aloud, generated entirely on your device. This feature works offline once the voice is installed.

### What is the age rating for GemReader?

GemReader has an age rating of 4+. This indicates it is suitable for young children and provides a safe environment for them to engage with reading materials.

## Version history (last 5 releases)

### 1.53.0 — 2026-11-11

1.53의 새로운 기능:
• 더 쉽게 읽을 수 있는 읽기 글꼴 두 가지: Lexend와 난독증 독자를 위해 만든 OpenDyslexic. 라틴 문자 책에서 Aa의 다른 글꼴 아래 별도의 줄에 있습니다.
• PDF: 하단 바 위에 페이지 슬라이더가 생겼습니다. 끌어서 원하는 페이지로 이동하고, 그 위의 띠가 하이라이트하거나 필기한 페이지를 표시합니다.
• PDF: 설정 시트가 스크롤되며 항목을 읽기, 도구, 사본 저장으로 묶었습니다.
• 한국어 등 영어가 아닌 PDF에서 하이라이트가 단어 위에 정확히 놓이고, 읽기 모드와 소리 내어 읽기에서 단어가 붙어 버리던 곳의 띄어쓰기가 유지됩니다.
• 양쪽 정렬 텍스트(책 및 양쪽 정렬)에 하이픈 처리가 적용되어 단어 사이가 크게 벌어지지 않습니다.
• 각주와 성구 팝업이 내용에 맞춰집니다. 짧은 메모는 작은 카드로 열리고, 긴 메모는 화면 대부분까지 커지며 스크롤됩니다.
• 가로 방향 iPhone: 서재가 더 작은 표지를 더 많이 보여 줘 한 줄이 통째로 들어가고, 리더는 위쪽에 본문 공간을 더 줍니다.
• iPad Split View: iPad Air에서 각 창에 다시 내비게이션 바가 표시되고, 한 창에 노트가 열려 있어도 상태 표시줄을 숨길 수 있습니다.
• 세로쓰기 중국어와 일본어 텍스트에서도 밑줄이 표시됩니다.
• Gem Beam이 받는 휴대폰에서 더 안정적으로 연결됩니다.
• 축소한 손글씨 노트 페이지가 창을 가득 채웁니다.

### 1.52.2 — 2026-11-08

New in 1.52:
• PDFs: search inside the document. Results are listed by page, and tapping one takes you to the passage.
• PDFs: read aloud. It follows columns, skips headers and page numbers, highlights the spoken word and carries on to the next page by itself.
• In PDFs, Bookmarks and Audio are now in the ⋮ menu, as in ebooks.
• PDF images stored as JPEG 2000, common in comics, no longer appear blank, and the dark-mode setting that keeps photos in colour works again.
• PDF highlights that cross a line break save their text with the words apart, and long-pressing a PDF no longer paints striped bands past the end of the line.
• Gem Beam resumes after a dropped connection, waits longer for the other phone, and explains failures in your language.
• Turning back to a chapter returns to where you left it, and slightly diagonal scrolling no longer turns the chapter.
• Changing a radio answer in a form no longer brings the old answer back.
• Paragraph focus keeps coloured text readable, and Serif and Sans text in gem notes and popups draws in the right font.
• Permission prompts appear in your language, and you can rate GemReader from About.
• GemReader now requires iOS 18 or later.

### 1.51.0 — 2026-11-05

New in 1.51:
• PDFs: import the highlights and comments a PDF already carries from another app as your own highlights and notes.
• Password-protected PDFs now ask for their password instead of failing to open.
• Printed page numbers, such as roman numerals, show in the bottom bar, and you can jump to them.
• PDF form fields on pages with navigation buttons now appear, and those buttons work.
• Chinese pinyin is read word by word, so far fewer characters show the wrong reading.
• Footnote popups number their lists correctly, and checkboxes in some books no longer show two ticks.

### 1.50.0 — 2026-11-04

New in 1.50:
• Media library: keep videos, diagrams and photos encrypted beside your books and link them from any note.
• Notebooks: write notes without a book passage, add pages, choose colours and fonts, and lock a notebook with a PIN.
• New dictionaries: Chinese, Chinese–German, Cantonese, English–Chinese and Hindi–English, with pinyin, jyutping and romanization.
• PDFs: scroll mode and two-page spreads, pinch and double-tap zoom, and dark mode that keeps photos in colour.
• A reading insights dashboard with a goal ring and week strip.
• Share books to GemReader from other apps.
• Better Urdu, Japanese, Korean and Traditional Chinese typesetting, plus many fixes.

### 1.40.0 — 2026-11-03

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 2026-11-12.*