ReadDeep vs Fleuron
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ReadDeep
This app enhances your reading experience by allowing you to import ebooks and engage in AI-powered discussions about their content. You can also connect your own language models for a customized interaction.
- Import EPUB, MOBI, AZW, AZW3 ebooks
- Chat with AI about book content
- Connect custom Large Language Models
- Personalized reading experience
- AI-powered content analysis
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ReadDeep revolutionizes your reading. Import ebooks, chat with AI about the content, and connect your own Large Language Models for a truly personalized experience. Currently, ReadDeep supports EPUB, MOBI, AZW, and AZW3. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Fleuron
Enhance your reading experience with integrated tools for understanding complex texts. Look up meanings, track characters and places, and take notes without leaving the page. Supports English, Japanese, Korean, and Chinese EPUBs.
- In-line word definitions
- Character and place index
- Markdown note-taking
- Spaced repetition for vocabulary
- Multi-language support (EN, JP, KR, CN)
- Offline functionality
- Read aloud with device voices
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Read real books in English, Japanese, Korean or Chinese, and understand them. Fleuron is an EPUB reader for reading above your level. It puts short meanings above the hard words, readings over Japanese and Chinese, and a spoiler-free guide to who's who beside the page, so you can stay inside the story. LENS Short hints sit above the words you may not know. Tap any word for its full entry: the sense that fits this sentence, its reading and an example. Mark a word as known and its hint goes away. READINGS Furigana over Japanese, in horizontal or vertical text. Pinyin over Chinese, with each character broken down. Korean words traced back to their dictionary form. COMPASS A guide to the people, places and terms in your book, built only from the pages you have read. Nothing from later in the book. NOTEBOOK AND STUDY Highlight with a marker stroke, write notes in the margin, and find them all again in a Notebook written by hand. The words you save come back in Study on a spaced-repetition schedule. DICTIONARY Every word you look up is filed as an index card, with the book and the sentence you found it in. All the dictionaries are inside the app and work offline. YOUR READING LIFE A bookshelf for every book you own, on paper or on screen. Reading time, pages, streaks and goals. Import from Goodreads. Read to Unlock keeps the apps you choose locked until you have read for the day. ON YOUR HOME SCREEN Eight widgets for the Home Screen, the Lock Screen and StandBy, and buttons for Control Center. MADE FOR THE PAGE Pages turn with a slide, a curl or a fade. Two pages at once on a wide iPad and on iPhone Duo. Read aloud with the voices on your iPhone. PRIVATE No account, no ads, no tracking, no analytics. Your books and notes stay on your device. PRICE Free to download, with one book of your own and sample books in Japanese, Korean and Chinese. One payment unlocks unlimited books. No subscription.
Screenshots
Verdict
ReadDeep and Fleuron 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. ReadDeep sells 1 in-app purchase, starting at $4.99 per month and Fleuron sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for ReadDeep against 5.0 for Fleuron. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
ReadDeep ships an update fortnightly, Fleuron every 2 weeks. The most recent releases landed on September 30, 2026 and October 16, 2026 respectively.
| Parameter | ReadDeep | Fleuron |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Fortnightly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 24 MB | 216 MB |
| Age rating | 4+ | 4+ |
| Developer | Jiabao Sun | Adib Ashraf |
Customer experience
ReadDeep
Fleuron
In-app purchases
ReadDeep
- ReadDeep AI$4.991 Month
Fleuron
- Fleuron$24.99









