Kortext vs cMate
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kortext
Access and read eBooks from various publishers with enhanced multimedia. Tools are included to help learners and academics engage with their content, offering features like note-taking, referencing, and text-to-speech.
- Read PDF and EPUB files
- Access 13,000+ free eTextbooks
- Highlight text and create notes
- Add Harvard/APA references
- Read Aloud functionality
- Adjust text size and background
- Search within books
- 500MB free cloud storage
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Kortext provides access to online eBooks from multiple publishers, with enhanced in-built audio and video content, combined with tools to assist learners and academics to make the most of their content. Features include: - Add and read PDF/EPUB files from your iPhone and iPad - Enjoy free access to a collection of over 13,000 eTextbooks - Easy navigation to content, providing quick access to pages - Highlight text in a range of colours and create notes, enabling quick reference of key sections - Add a reference (Harvard or APA), making creation of bibliographies much easier - Read Aloud sections, providing help with accessing content - Increase text size, change font and background of pages making it easier to view content - Search for keywords and phrases within the books directly from your bookshelf, allowing quicker access to relevant content - 500MB of free cloud file storage. Simply upload your study materials and harness the full potential within
cMate
Access the complete MARPOL Convention, including the latest amendments, in both English and Russian. This app offers easy navigation and a powerful search function for quick access to specific sections.
- Full MARPOL Convention text
- Latest amendments included
- Bilingual (English/Russian)
- Convenient search function
- Easy navigation
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The International Convention for the Prevention of Pollution from Ships cMate-MARPOL contains the full text of the MARPOL Convention with the latest amendments and additions in two languages (Russian, English). cMate-MARPOL is equipped with a convenient search and navigation through the sections of the convention.
Screenshots
Verdict
The clearest difference is price: Kortext at Free against cMate's $2.99. Kortext also leads on update cadence (every 2 months vs every 69 months) and chart position (#104 vs unranked). cMate's advantage is review sentiment (50% vs 17%) and iOS requirement (12.0 vs 17.0). On ads, in-app purchases and device support 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
Kortext is free to download; cMate costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Kortext ships an update every 2 months, cMate every 69 months. The most recent releases landed on October 18, 2026 and October 9, 2026 respectively.
| Parameter | Kortext | cMate |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 3.9 (1.3K ratings) — better | — |
| Positive reviews | 17.4% of reviews | 50.0% of reviews — better |
| Number of ratings | 1.3K — better | — |
| Update frequency | Every 2 months — better | Every 69 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | #104 — better | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 26 MB |
| Age rating | 12+ | 4+ |
| Developer | Kortext | Maxim Lukyanenko |
Customer experience
Kortext
cMate
Bugs and requests
Kortext
Reported bugs
4 issues- Frequent crashes and freezes
- Pages not loading properly
- Highlighting and annotations not saving
- Login issues and inability to access content
Requested features
5 requests- Improved text-to-speech functionality
- Better organization and navigation of content
- Ability to customize text size and layout
- Syncing across multiple devices
- Offline reading mode
cMate
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Kortext
No in-app purchases
cMate
No in-app purchases
