BookWyrm vs Constant Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BookWyrm
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Ever come across something you don't know while reading a book? BookWyrm is your reading companion, helping you understand unfamiliar words, keep track of characters, and stay immersed in the story. Designed for people who love reading, BookWyrm lets you point your camera at a word on the page and instantly get a translation in your language, plus a full definition. You can also create characters, add your own notes and relationships, and quickly find them again as you continue reading. BookWyrm currently supports English books. Support for additional book languages is being explored. HOW IT WORKS • Open the scanner while reading • Point at a word or a character's name • Get an instant translation and definition for words • Recognise characters you've already added and show information about them • Save words and characters as you read KEEP TRACK OF YOUR CHARACTERS Characters can be easy to forget, especially in books with large casts. Add characters as you encounter them and write your own notes about who they are, where they live, what they do, or anything else you want to remember. Create relationships between characters to keep track of who knows whom, who is related, and how they fit into the story. And because the information comes from you, BookWyrm won't spoil the story by telling you something you haven't discovered yet. BUILD YOUR WORD BANK Save unfamiliar words as you encounter them. Your personal word bank is organized by book, so you can revisit words from the stories you've read and see your vocabulary grow over time. FEATURES • Smart word scanner — just point and hold steady • Character recognition — recognise characters you've added to your book • Character notes — add your own information as you read • Character relationships — keep track of connections between characters • Instant translation to your preferred language • Full dictionary definitions • Listen to pronunciation • Personal word bank organized by book • Track multiple books at once PERFECT FOR • People who read English books • Readers who want to stay immersed in their stories • Anyone who wants to keep track of characters and relationships • Readers who don't want to interrupt their reading flow BOOKWYRM GOLD — UNLIMITED READING AND LEARNING Upgrade to BookWyrm Gold for unlimited scanning, unlimited saved words, unlimited characters, and unlimited books. Available as a monthly subscription, yearly subscription, or one-time lifetime purchase. Download BookWyrm and never get lost in a book again. --- Dictionary definitions are provided by Free Dictionary API using data from Wiktionary (CC BY-SA 4.0). Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Constant Reader
Track your Stephen King reading journey and explore his universe with detailed insights and adaptation information. Unlock themed ranks as you progress through his iconic bibliography. Designed for fans with a private, fast, and simple experience.
- Track reading progress
- Explore King's universe
- Unlock themed ranks
- Discover book adaptations
- Private and fast experience
- Stephen King inspired design
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Enter the world of Stephen King like never before. Constant Reader is the ultimate companion app for fans of Stephen King, whether you are just opening your first book or you have already traveled to the Dark Tower. Track your reading, explore his universe, and watch your journey evolve as you move from Newcomer to true Constant Reader. TRACK YOUR JOURNEY Log every Stephen King book you have read and see your progress at a glance. Build your personal reading history and stay motivated as you work your way through one of the most iconic bibliographies in modern literature. UNLOCK RANKS Your reading journey comes with status. Progress through themed ranks inspired by King’s worlds, from Night Shift to Dark Tower Traveler, each milestone marking your growing connection to his stories. EXPLORE THE KING UNIVERSE Dive deeper into each book with rich details, connections, and insights. Discover how stories intertwine across Castle Rock, Derry, and beyond. DISCOVER ADAPTATIONS Browse film and TV adaptations tied to each book. See how King’s stories have been brought to life across generations of movies and series. DESIGNED FOR FANS From subtle horror-inspired visuals to rewarding interactions, every detail is crafted to feel like it belongs in a Stephen King story. SIMPLE, PRIVATE, FAST No accounts. No data tracking. Your reading journey stays on your device, just open the app and start exploring. Whether you are revisiting classics like “It” and “The Shining” or discovering hidden gems, Constant Reader helps you experience Stephen King’s work in a whole new way. Start your journey today, and see how deep the rabbit hole goes.
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Verdict
The clearest difference is in-app purchases: Constant Reader at none against BookWyrm's 3. Constant Reader also leads on update cadence (every 2 days vs fortnightly) and iOS requirement (17.0 vs 26.0). On price, 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
Both are free to download. BookWyrm sells 3 in-app purchases, starting at $0.99 per month. Constant Reader asks for nothing beyond the download.
BookWyrm ships an update fortnightly, Constant Reader every 2 days. Both last shipped on October 31, 2026.
| Parameter | BookWyrm | Constant Reader |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.9 (15 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 15 — better |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 8 MB |
| Age rating | 4+ | 9+ |
| Developer | Rene Heijndijk | Shed Labs LLC |
In-app purchases
BookWyrm
- BookWyrm Gold Monthly$0.991 Month
- BookWyrm Gold Yearly$8.991 Year
- BookWyrm Gold Lifetime$24.99
Constant Reader
No in-app purchases
Questions
Is BookWyrm free?
Is Constant Reader free?
Do BookWyrm or Constant Reader have ads?
Which is updated more often, BookWyrm or Constant Reader?
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