cMate vs DjVu Reader & Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
cMate
This app provides essential IMO phrases for seafarers and maritime students. It offers standardized navigational and safety communications in four languages to ensure clear and unambiguous interactions at sea.
- IMO phrases for seafarers
- Four language support
- Navigational and safety communications
- Standardized maritime language
- Clear and unambiguous communication
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This application is intended for seafarers and those who study the sea English. cMate-SMCP contains IMO phrases in four languages (English, Russian, Spanish, French) As navigational and safety communications from ship to shore and vice versa, ship to ship , and on board ships must be precise, simple and unambiguous, so as to avoid confusion and error, there is a need to standardize the language used. This is of particular importance in the light of the increasing number of internationally trading vessels with crews speaking many different languages since problems of communication may cause misunderstandings leading to dangers to the vessel, the people on board and the environment.
DjVu Reader & Viewer
This app offers a modern and elegant way to read DjVu documents on iOS devices. It features high-quality rendering, a smart document tracking system, and a clean interface optimized for technical and academic material.
- High-quality DjVu rendering
- Smart document tracking
- Clean, intuitive interface
- Dark/White mode options
- Powerful search capabilities
- Optimized performance for large documents
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DjVu Reader is the modern, elegant solution for reading technical and academic DjVu documents on your iOS device. Experience crystal-clear rendering of complex documents with a clean, distraction-free interface designed for professional use. — KEY FEATURES — • High-quality rendering of DjVu documents with precise text and image display • Smart document tracking system to organize your reading (to-read, in-progress, completed) • Clean, intuitive interface optimized for academic and technical material • Dark/White modes options for comfortable reading in any environment • Powerful search capabilities to quickly find content within documents • Optimized performance for large technical documents and academic papers • Seamless document organization with smart folders and favorites (Coming Soon…) Whether you're a researcher, academic, student, or professional, DjVu Reader provides the perfect experience for your technical documents. — SUPPORT & LINKS — - Contact Us: support@djvu.app - Privacy Policy: https://djvu.app/privacy - Terms of Use: https://djvu.app/terms
Screenshots
Verdict
The clearest difference is review sentiment: cMate at 100% against DjVu Reader & Viewer's 25%. cMate also leads on in-app purchases (none vs 2) and update cadence (every 5 weeks vs every 4 months). DjVu Reader & Viewer's advantage is price (Free vs $2.99). On ads 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
DjVu Reader & Viewer is free to download; cMate costs $2.99 up front. DjVu Reader & Viewer sells 2 in-app purchases, starting at $2.99 per 7 days. cMate asks for nothing beyond the download.
cMate ships an update every 5 weeks, DjVu Reader & Viewer every 4 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | cMate | DjVu Reader & Viewer |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 4.2 (75 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 25.0% of reviews |
| Number of ratings | — | 75 — better |
| Update frequency | Every 5 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 8 MB | 35 MB |
| Age rating | +4 | 4+ |
| Developer | Maxim Lukyanenko | Yassir Hrout |
Customer experience
cMate
DjVu Reader & Viewer
In-app purchases
cMate
No in-app purchases
DjVu Reader & Viewer
- Weekly Plan$2.997 Days
- Lifetime Plan$5.99
Questions
Is cMate free?
Is DjVu Reader & Viewer free?
Do cMate or DjVu Reader & Viewer have ads?
Which is updated more often, cMate or DjVu Reader & Viewer?
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