Comparison

Worm. vs StoryStack

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Worm.

This app helps book lovers track their reading, discover new titles, and connect with a community of fellow readers. Organize your digital bookshelf, set reading goals, and engage in discussions about your favorite books.

Highlights
  • Digital bookshelf management
  • Personalized reading goals
  • Friend activity feed
  • Book discovery and recommendations
  • User profiles and statistics
  • Book reviews and discussions
Features
Read full description

Worm is the social app for bookworms. You can track your reading journey, discover new books, and connect with friends in a dedicated community of readers. Personal Reading Management * Create your digital bookshelf with "Read" and "Want to Read" sections * Rate books by comparing previously read books against each other * Set reading goals and track your progress throughout the year * Organize which books you want to read next Social Connectivity * Follow friends and see what they’ve read or want to read in your personalized feed or by viewing their profile * Like and comment on friends' book reviews and updates. Engage in meaningful conversations about the book Discovery * Search for books by title or author using our comprehensive database * See which books are trending in your network * Discover new reads based on what your friends are enjoying * Explore detailed book information including summaries, other user comments, and average rating Profile Customization * Create a personalized profile * Showcase your reading statistics, bookshelves, and recent activity User Privacy & Security * Secure authentication options including Apple Sign-In and Google Sign-In * Control your privacy settings and manage who can see your activity * Block users if needed for a comfortable social experience * Comprehensive terms of service and privacy policy available Worm is your all-in-one reading companion - track your books, connect with fellow readers, discover new favorites, and celebrate your reading journey, all in one beautifully designed app.

About

StoryStack

Organize your reading list, track progress, and discover new books with smart recommendations. Features include a digital bookshelf, reading timer, and shareable review cards. Perfect for avid readers and BookTok enthusiasts.

Highlights
  • Smart book organization
  • AI book recommendations
  • Reading progress tracking
  • Shareable review cards
  • Advanced reading analytics
  • Offline functionality
Features
Read full description

Keep your next read close. StoryStack brings your to-be-read list, bookshelves, and reading progress together. ORGANIZE YOUR BOOKS Search for books or scan an ISBN barcode. Sort your library into Want to Read, Currently Reading, Completed, and Did Not Finish. Create collections for the books you want to keep together. PICK YOUR NEXT READ Can’t choose from your reading list? Use the book spinner to help you decide. Explore books and add the ones you want to read to your library. TRACK YOUR READING Log pages and reading time, use the reading timer, and update each book’s progress. See your reading streak, completed books, and library statistics. Add personal ratings and notes to remember what you thought. BRING YOUR READING LIST Import a supported reading-list CSV instead of adding every book again. Some features require an in-app purchase or subscription. Available plans, prices, and any eligible trial are shown before purchase. Manage subscriptions in your App Store account settings. Privacy Policy: https://astralabstudios.com/support Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Worm.4 screens
StoryStack4 screens

Verdict

The call

The clearest difference is review sentiment: Worm. at 100% against StoryStack's 43%. Worm. also leads on rating (5.0 vs 4.1) and in-app purchases (none vs 4). On price, ratings volume, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. StoryStack sells 4 in-app purchases, starting at $4.99 per 7 days. Worm. asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Worm. holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 31 and 54 respectively. Written reviews point the same way: 100% of Worm.'s written reviews are positive against 43% of StoryStack's.

UpkeepUpdate frequency

Worm. ships an update every 3 days, StoryStack every 4 days. The most recent releases landed on June 11, 2026 and September 19, 2026 respectively.

Scorecard4 real differences · 6 level
Worm. versus StoryStack: the parameters behind the verdict, then further details
ParameterWorm.StoryStack
PriceFreeFree
Rating5.0 (31 ratings) — better4.1 (54 ratings)
Positive reviews100.0% of reviews — better42.9% of reviews
Number of ratings3154 — better
Update frequencyEvery 3 days — betterEvery 4 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.1
Further details — not scored
Size32 MB101 MB
Age rating17+4+
DeveloperDavid BurtonAstralab Studios, Inc.

Customer experience

Worm.

All ratings31 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

StoryStack

All ratings54 ratings
Positive75.9%
Neutral7.4%
Negative16.7%
Written reviews14 reviews
Positive42.9%
Neutral0.0%
Negative57.1%

In-app purchases

None

Worm.

No in-app purchases

4 purchases

StoryStack

Subscriptions3
  • Unlimited Access3 Days trial$4.997 Days
  • Premium Monthly7 Days trial$5.991 Month
  • Premium Yearly$44.991 Year
One-time1
  • Lifetime Premium Access$79.99

Questions

Is Worm. free?
Worm. is free to download, with no in-app purchases.
Is StoryStack free?
StoryStack is free to download, with in-app purchases available.
Which has better reviews, Worm. or StoryStack?
Worm. is rated higher. Worm. averages 5.0 out of 5 from 31 ratings, while StoryStack averages 4.1 from 54 ratings.
Do Worm. or StoryStack have ads?
Neither Worm. nor StoryStack shows ads.
Which is updated more often, Worm. or StoryStack?
Worm. ships an update every 3 days, and StoryStack every 4 days. Most recently, Worm. was updated on June 11, 2026 and StoryStack on September 19, 2026.

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