BookWorm vs Stellary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BookWorm
This app helps you build a consistent reading habit by tracking books, ebooks, and audiobooks. Set daily goals, maintain reading streaks, and visualize your progress with a unique calendar. It offers effortless book addition, customizable themes, and cross-device synchronization.
- Track books, ebooks, and audiobooks
- Set and achieve daily reading goals
- Maintain reading streaks
- Visualize progress with a reading calendar
- Add books via search or barcode scan
- Customizable themes (Light, Dark, Retro)
- Home Screen and Lock Screen widgets
- iCloud sync across devices
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Turn reading into a daily habit you can see. BookWorm tracks every book, ebook and audiobook, counts pages and listening time toward one daily goal, and keeps your streak alive. Every feature is free. BookWorm is a warm, hand built reading tracker for people who love books and want to actually finish them. No feed, no noise, no ads. Just your library, your progress, and a friendly bookworm cheering you on. WHY READERS FINISH MORE BOOKS • Track any format. Physical books and ebooks by page, audiobooks by hours and minutes. • One daily goal for all of it. Pages and listening time count toward the same target. • Reading streaks, so there is a reason to open a book today. • A calendar that fills in as you read, until your year tells a story. • Real stats: books finished, pages read, hours listened, days read, and your best streak ever. • Your most read genres and a format breakdown, so you learn how you actually read. EFFORTLESS BY DESIGN • Add a book in seconds. Search by title, or scan its barcode with your camera. • Covers, page counts and audiobook length estimates are filled in for you. • Home Screen and Lock Screen widgets show what you are reading at a glance. • iCloud sync keeps your library on every iPhone you own, in your own private iCloud. • Nine languages, switchable instantly with no restart. • Re-read a favourite and BookWorm keeps the earlier read in your history. • Finished a book months ago? Add it with its dates and your calendar fills in behind you. IT FEELS LIKE SOMETHING Saving your progress turns a page. Buttons click, switches flip, and finishing a book has a small celebration you can feel in your hand. And because so many readers here are listening rather than turning pages, BookWorm's sounds can never duck or interrupt your audiobook. Sound and haptics each have their own switch. MAKE IT YOURS Four looks, one tap apart. System follows your phone. Light is warm and creamy. Dark is easy on the eyes at night. And Retro dresses the whole app in a 70s sunset palette of teal, mustard and burnt orange, with chunky outlines and monospaced type. Add your own genres, set the goal that suits your week, and pick the look you like. YOURS, AND PRIVATE Your library lives on your device and in your own iCloud, where the developer cannot read it. There is no account, no sign up, no email address. BookWorm collects a small amount of pseudonymous usage data to fix problems and decide what to build next, never your book titles, your name, or what you type into search. FREE, WITH A TIP JAR IF YOU LIKE IT Every feature is free. No paywall, no locked screens, no subscription, no ads. If BookWorm earns its place on your Home Screen, an optional tip supports one independent developer. That is the whole business model. Start your next chapter today.
Stellary
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Stellary turns your reading life into something you can actually look at: a private night sky. Every book you finish becomes a star. Your favorite genres form glowing constellations. Keep reading, and you'll watch your own universe grow brighter, year after year. EFFORTLESS TRACKING • Start the reading timer, or log a session in seconds • Scan a barcode and any book is in your library before you've put it down • Bring your entire Goodreads history with you in one import • Build a streak day by day, and set a yearly goal that keeps pace with you A SKY THAT'S YOURS ALONE • The Atlas: a living star field made of every book you've finished • Each genre gets its own color and its own constellation • Earn zodiac constellations month by month • Discover your reader identity, an archetype that shifts as your taste does BETTER WITH FRIENDS • A calm, quiet feed of what your friends are reading. No likes to chase, no algorithm. • Share reviews with friends • Read together and discuss what you are reading with book clubs • See when a friend is reading right now GO INFINITE (optional subscription) • An unlimited library • Advanced statistics: your trends, records, and patterns • Custom shelves, organized your way • Streak protection that forgives a missed day • Ambient soundscapes to read to • Beautiful share cards for all your reading statistics • Recommendations from readers whose shelves look like yours Core reading tracking is free. Forever. Stellary works offline, syncs privately, and your library is never public. Stellary Infinite is an auto-renewing subscription (monthly, 6-month, or annual) with a 7-day free trial. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings. Terms of Use: https://stellary.cloud/terms Privacy Policy: https://stellary.cloud/privacy
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Verdict
The clearest difference is update cadence: BookWorm at weekly against Stellary's every 6 weeks. On price, 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
Both are free to download. BookWorm sells 5 in-app purchases, starting at $4.99 per month and Stellary sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
BookWorm ships an update weekly, Stellary every 6 weeks. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.
| Parameter | BookWorm | Stellary |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (6 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Weekly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.2 | 16.4 — better |
| Further details — not scored | ||
| Size | 24 MB | 101 MB |
| Age rating | 4+ | 4+ |
| Developer | Adam Markocki | HAKAN MATTIAS BJORN OLANDERSSON |
In-app purchases
BookWorm
- BookWorm Pro – Monthly7 Days trial$4.991 Month
- BookWorm Pro – Annual7 Days trial$29.991 Year
- An espresso$2.99
- Coffee & croissant$4.99
- A week of coffee$9.99
Stellary
- Stellary Infinite7 Days trial$3.991 Month
- Stellary Infinite7 Days trial$19.996 Months
- Stellary Infinite7 Days trial$29.991 Year









