TecViewer vs TTReader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TecViewer
Easily view and manage all your text files with this versatile reader. Customize your reading experience with various font and screen style options. Secure your documents and access them from cloud storage or your device.
- Cloud file download
- iTunes file transfer
- Folder management
- Customizable screen styles
- Font and margin adjustments
- File locking and biometric security
- Night mode
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View and enjoy all text files from this app. Experience this simple to use text viewer compatible with your iPhone and iPad! [Features] - Download from your cloud (iCloud, Dropbox, OneDrive, GoogleDrive, WebDav) - Transfer files from iTunes - Create folders or move and delete files - Share files - Change screen styles to your taste - Change fonts (including size, bold, and type) - Adjust margins (left and right) - Adjust line spacings - Display scroll bars - Secure your files by file locking - See recent files - Delete your cache - Able to use night mode - Set your preferred scrolling direction (vertical or horizontal) - Change encoding (automatically detects the right encoding format at first) [Access Settings] Biometric ID: Agree to Face ID for file security [Support] Email support: mrlhs77@gmail.com * Customer service can also be found in Settings * Our team considers your feedback to be the most important. Please give us your feedback for us to provide better service!
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.
- 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
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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
Screenshots
Verdict
TecViewer and TTReader are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. TecViewer sells 4 one-off in-app purchases and TTReader sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for TecViewer against 4.8 for TTReader. Both are backed by a comparable volume of ratings — 26 and 10 respectively. Written reviews are what separate them: 98% of TecViewer's written reviews are positive against 100% of TTReader's.
TecViewer ships an update monthly, TTReader every 3 weeks. Both last shipped on September 24, 2026.
| Parameter | TecViewer | TTReader |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (26 ratings) | 4.8 (10 ratings) — better |
| Positive reviews | 98.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 26 — better | 10 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.5 — better |
| Further details — not scored | ||
| Size | 45 MB | 197 MB |
| Age rating | 4+ | 4+ |
| Developer | CASOFT | HYEONJOON HONG |
Customer experience
TecViewer
TTReader
In-app purchases
TecViewer
- 커피 후원하기 (Small)$0.99
- 광고 제거$1.99
- 커피 후원하기 (Large)$1.99
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- 커피 후원하기 (Big)$4.99
TTReader
- Remove Ads - 1 Month$1.991 Month








