Morse Code Master vs Book Isle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Morse Code Master
Easily encode and decode Morse code with support for International and English variations. Features automatic playback, an alphabet reference, common phrases, and text-to-speech conversion for enhanced understanding.
- Morse code encoding and decoding
- International and English Morse code support
- Automatic playback function
- Morse code alphabet reference
- Common phrase list
- Text to speech conversion
Read full descriptionHide full description
This app allows you to quickly encode and decode Morse code and supports various types of Morse code, including the common International Morse Code and English Morse Code. It also has an automatic play function to help you better understand the meaning of Morse code. In addition, the app provides a Morse code alphabet and a list of common phrases to make it easy for you to find the symbols you need when using Morse code. It can also convert Morse code to text and speech for easier use and understanding. Overall, the Morse Code Tool app for Apple devices is a very useful tool with multiple functions and conveniences. Download and start using it now!"
Book Isle
This app allows you to connect to your personal NAS, WebDAV, SMB, OPDS, or Calibre library to import, browse, search, download, and read local and remote books. It supports a wide range of file formats and offers a robust local reading experience with features like full-text search and highlighting.
- Connect to NAS, WebDAV, SMB, OPDS, Calibre
- Import and manage multiple book formats
- Full-text search and bookmarking
- Remote reading and downloading
- Private synchronization of reading progress
- Face ID app lock for privacy
Read full descriptionHide full description
Book Isle is an e-book reader designed for personal private libraries. You can connect your iPhone and iPad to your own NAS, WebDAV, SMB, OPDS, or Calibre library, import, browse, search, download, and read local and remote books. The app does not provide an online bookstore, does not host or distribute book content, and your book files are still managed by your local device or your own private library. Main functions: - Private library connection: Supports WebDAV, SMB, OPDS, Calibre Content Server, and Calibre metadata.db. - Multi-format bookshelf: Supports the import, management, and reading of TXT, EPUB, PDF, Markdown, HTML, FB2, RTF, DOCX, CBZ, and common audiobook formats; MOBI, AZW, AZW3, CBR, DJVU can be imported, managed, filtered, and synchronized. It is recommended to convert them to EPUB, PDF, or CBZ for reading. - Local reading experience: Supports bookshelf grid/list, sorting, tagging, rating, reading status, full-text search, bookmarking, notes, highlighting, book excerpt cards, and reading statistics. - Remote reading and downloading: Browse private libraries from NAS, OPDS, or Calibre, download or stream supported book formats on demand. - Private synchronization: Synchronize reading progress, book metadata, notes, highlights, tags, reading statistics, and reading settings through the WebDAV directory you have configured. - Privacy and security: No self-built account system; supports Face ID app lock; book files will not be automatically uploaded to our servers due to synchronization function. ShuYu is suitable for readers who already have NAS, Calibre, WebDAV directories, or OPDS book sources, allowing them to manage their private book collections with a quiet and reliable reader. Subscription and purchase instructions: Bibliophile Pro offers monthly and annual memberships with automatic renewal, as well as a one-time purchase for a permanent membership. After activation, users can enjoy member-only features such as browsing, searching, downloading, and remote reading of private libraries via NAS/WebDAV/SMB, OPDS, Calibre, as well as private WebDAV synchronization. Monthly and annual memberships are auto-renewable subscriptions on the App Store. After confirming your purchase, the fee will be deducted from your Apple ID account; the subscription will automatically renew before the end of the current period, unless you turn off auto-renewal at least 24 hours before the end of the current subscription period; the renewal fee will be confirmed and deducted by Apple within 24 hours before the end of the current period. You can manage or cancel your subscription in iOS Settings > Apple ID > Subscriptions, or open the App Store subscription management page from the in-app membership page. After canceling your subscription, you can still use the membership benefits until the end of the current paid period. The actual price, trial, promotions, and available items are subject to the display on the App Store purchase confirmation page. Refunds are processed by Apple according to its rules. After membership expires, is cancelled, is refunded, or the transaction is revoked, the remote library and private sync features that require membership will be locked; downloaded books, local reading, local notes, and local shelf management can still be used. The specific agreement is as follows: Terms: https://sobison.github.io/nasbook/auto-renewable-subscription-terms.html membership: https://sobison.github.io/nasbook/membership-agreement.html Privacy: https://sobison.github.io/nasbook/privacy-policy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Morse Code Master at none against Book Isle's 3. Book Isle's advantage is update cadence (every 8 days vs every 6 months) and iOS requirement (15.6 vs 17.0). On price, review sentiment, 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
Morse Code Master costs $0.99 and Book Isle $0.99 up front. Book Isle sells 3 in-app purchases, starting at $0.99 per month. Morse Code Master asks for nothing beyond the download.
Morse Code Master ships an update every 6 months, Book Isle every 8 days. The most recent releases landed on September 29, 2026 and October 12, 2026 respectively.
| Parameter | Morse Code Master | Book Isle |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 94.1% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 6 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 1 MB | 50 MB |
| Age rating | 4+ | 9+ |
| Developer | 博 彭 | Anyi County Bingzhiyi Trading Co., Ltd. |
Customer experience
Morse Code Master
Book Isle
In-app purchases
Morse Code Master
No in-app purchases
Book Isle
- Monthly membership$0.991 Month
- Annual Membership$2.991 Year
- Permanent member$7.99
Questions
Is Morse Code Master free?
Is Book Isle free?
Do Morse Code Master or Book Isle have ads?
Which is updated more often, Morse Code Master or Book Isle?
Other comparisons















