Comparison

TTReader vs G

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TTReader

This application allows you to read text from various document formats, including images, EPUB, and PDF. It offers advanced text-to-speech (TTS) features with customizable speed and line reading, along with OCR capabilities to extract text from images. Enhance your reading experience with extensive UI customization and cloud integration.

Highlights
  • Text-to-Speech (TTS) with adjustable speed
  • OCR for image and document text extraction
  • Convert EPUB and PDF to text
  • Customizable UI themes and fonts
  • Cloud app integration for file access
  • Bookmark and history functions
Features
Read full description

This is a text viewer application optimized for TTS. It can be used on various mobile devices and can be viewed continuously between devices. It has a built-in function to convert image, epub, and PDF document files to text documents. Support tts filter function. You can change or remove special characters and unwanted content. Filters that are generally used are supported by default. Supports detailed TTS settings. The TTS speed is supported up to 5 times, and it can be set to read 1 to 10 lines instead of reading one line at a time. You can synchronize the reading position on various devices through drive linkage. Supported features: TTS related - Play background TTS - TTS filter function (provides dozens of basic filters for general users to use easily) - TTS section repeat function - TTS timer function - Ability to read multiple lines at once - TTS stop function during phone call - Ability to scroll through TTS while playing and view the contents in front and back. text - Text editing - Text batch editing - Ability to combine multiple text files into one. - Newline cleanup function for files with strange newlines - OCR (Image Text Extraction) - Real-time OCR (extract text in real time using camera) - Dozens of batch editing patterns provided for easy batch editing after OCR processing. - Extract EPUB text - Extract PDF text - Convert to EPUB image - Convert to PDF image UI function - Light, dark, black theme support - 108 Korean free fonts - 799 foreign free fonts - 65 background images - Scroll speed function (reduce finger fatigue by scrolling a lot even if you scroll a little) - Multiple setting functions such as font size, color, and spacing - Highlight, bookmark display color setting function. - Margin setting function - screen orientation setting function - Two-page view function (pad) special function - Bookmark function - Location backup/recovery function. - Settings, history, filter backup recovery function. - File upload/download function. - Touch area setting function - External device (pen, Bluetooth controller) button setting function - History interlocking function (even if the file name is different, you can continue viewing the file you have been viewing) - Memo function - You can add files by linking with several cloud apps. * standard Apple Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ * privacy policy https://raw.githubusercontent.com/khjde1207/opentextviewdatas/refs/heads/main/playstore/PrivacyStatement_IOS_en.html

About

G

Access and study your purchased e-books for teacher certification exams anytime, anywhere. This app offers a smart PDF viewer with customizable settings and efficient learning tools like bookmarks and quick navigation. Enjoy a secure and stable reading experience with DRM protection.

Highlights
  • Syncs with G-school library
  • Smart PDF viewer for high-resolution textbooks
  • Customizable viewing modes
  • Table of contents navigation
  • Bookmark functionality
  • DRM protected content
Features
Read full description

임용합격의 대표 브랜드 지스쿨 & 지북스의 공식 전자책 앱, G-eBook! 무거운 임용고시 수험서는 이제 그만! 지북스에서 구매한 다양한 임용고시 교재를 언제 어디서나 스마트하게 학습하세요. [주요 기능 및 특징] 1. 지스쿨 연동 서재 - 지스쿨에서 구매한 임용고시 이북(e-Book) 교재를 앱에서 바로 다운로드하고 편리하게 열람할 수 있습니다. 2. 수험생 맞춤형 PDF 스마트 뷰어 - 고해상도 PDF 교재도 깔끔하고 빠르게 로딩됩니다. - 두면 보기, 한면 보기 등 학습 환경에 맞는 최적의 뷰어 설정을 지원합니다. 3. 효율적인 학습 기능 - 목차 이동 및 페이지 바로가기 기능으로 원하는 내용을 빠르게 찾을 수 있습니다. - 북마크(책갈피) 기능으로 중요 페이지를 손쉽게 관리하세요. 4. 안전하고 편리한 학습 환경 - DRM 적용으로 소중한 교재 콘텐츠를 안전하게 보호하며, 끊김 없는 안정적인 독서 환경을 제공합니다. [안내 사항] - 지스쿨 회원 계정으로 로그인 후 이용하실 수 있습니다. - 교재 구매 및 권한 관련 문의는 지스쿨 고객센터를 이용해 주세요.

Screenshots

TTReader4 screens
G4 screens

Verdict

The call

The clearest difference is review sentiment: TTReader at 100% against G's 13%. TTReader also leads on update cadence (every 3 weeks vs every 11 months). G's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, in-app purchases, device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. TTReader sells 1 in-app purchase, starting at $1.99 per month and G sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

TTReader ships an update every 3 weeks, G every 11 months. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
TTReader versus G: the parameters behind the verdict, then further details
ParameterTTReaderG
PriceFreeFree
Rating4.8 (10 ratings) — better—
Positive reviews100.0% of reviews — better12.5% of reviews
Number of ratings10 — better—
Update frequencyEvery 3 weeks — betterEvery 11 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.515.1 — better
Further details — not scored
Size197 MB36 MB
Age rating4+4+
DeveloperHYEONJOON HONGBong Chul Koo

Customer experience

TTReader

All ratings10 ratings
Positive90.0%
Neutral10.0%
Negative0.0%
Written reviews21 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

G

Written reviews8 reviews
Positive12.5%
Neutral0.0%
Negative87.5%

In-app purchases

1 purchases

TTReader

Subscriptions1
  • Remove Ads - 1 Month$1.991 Month
5 purchases

G

One-time5
  • 1000 Points$0.49
  • 5000 Points$2.99
  • 10000 Points$6.99
Show 2 more
  • 50000 Points$34.99
  • 100000 Points$69.99

Questions

Is TTReader free?
TTReader is free to download, with in-app purchases available.
Is G free?
G is free to download, with in-app purchases available.
Do TTReader or G have ads?
TTReader shows ads; G does not.
Which is updated more often, TTReader or G?
TTReader ships an update every 3 weeks, and G every 11 months. Most recently, TTReader was updated on October 13, 2026 and G on October 6, 2026.

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