Comparison

Mibrary vs PlotLock

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

Head to head
About

Mibrary

Digitize your personal book collection with this app. Catalog books by searching, scanning, or manual entry, and organize them with custom shelves. Track your reading progress and connect with a community of book lovers.

Highlights
  • Catalog books by search, scan, or manual entry
  • Organize with custom shelves
  • Track reading progress
  • Scan book spines for virtual shelf
  • Create wishlists
  • Connect with readers
  • Import from Goodreads
Features
Read full description

Mibrary, the home for your reading tracking, book collection, wishlist, TBR, and more! BUILD YOUR LIBRARY Search for a book, scan its ISBN, or add it manually. Keep track of the details that make each copy yours, including its format, condition, rating, spice level, and personal notes. ORGANIZE YOUR SHELVES Sort your books with built-in shelves like To Read, Currently Reading, Read, and Favorites. You can also create custom shelves for anything you like—genres, moods, series, special editions, or whatever makes sense to you. BRING YOUR PHYSICAL SHELVES TO LIFE Use the spine scanner to photograph your books and create a virtual shelf inspired by the one in your home. Capture the details collectors care about, from beautiful spines to sprayed edges. TRACK YOUR READING See what you’re currently reading, log your progress by page, and move finished books to your Read shelf. Everything stays connected to the copy in your collection. KEEP A WISHLIST Save the books and editions you’re looking for. When one finally comes home with you, move it straight into your library. IMPORT FROM GOODREADS Already have years of reading history somewhere else? Import your Goodreads collection and continue from there. CONNECT WITH OTHER READERS Follow friends and fellow book lovers, see what they’re adding and reading, and join the conversation through likes and comments. RATE, REVIEW, AND REMEMBER Give books a star rating and spice level, then add private notes about the moments, characters, and feelings you don’t want to forget. Your library is personal. Mibrary gives it a place to live wherever you go. Terms of Use: https://mibrary.app/terms

About

PlotLock

Features
Read full description

PlotLock is a reading companion for book clubs and reading partners. Add any book, track your progress by page or chapter, and leave margin notes as you read — shared with your group in real time. READ AT YOUR OWN PACE Join a group with a simple code. You see everyone's progress, but notes written past where you are stay locked until you get there. Nobody has to read on a schedule, and nobody gets spoiled. MARGIN NOTES, NOT A CHAT Every note is pinned to a place in the book. Reach that page and it unlocks. It reads like borrowing a copy covered in a friend's handwriting, rather than scrolling a feed. AN ASSISTANT THAT WON'T SPOIL IT Ask about what you've read so far — a character you've lost track of, a thread you want to untangle. The assistant knows exactly how far along you are and will not discuss a single page beyond it. QUIET BY DESIGN No public profiles, no followers, no algorithm, no ads. Just you and the people you're reading with. FEATURES · Track progress by page or chapter · Margin notes that sync live with your group · Spoiler lock on every note and every AI answer · Share a journey with a link · Emoji reactions and threaded replies · Dark mode PlotLock was previously published as SamePage. Same app, same account, same books.

Screenshots

Mibrary4 screens
PlotLock4 screens

Verdict

The call

The clearest difference is in-app purchases: PlotLock at none against Mibrary's 1. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mibrary sells 1 in-app purchase, starting at $2.99 per month. PlotLock asks for nothing beyond the download.

UpkeepUpdate frequency

Mibrary ships an update every 9 days, PlotLock every 2 weeks. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Mibrary versus PlotLock: the parameters behind the verdict, then further details
ParameterMibraryPlotLock
PriceFreeFree
Rating4.8 (204 ratings) — better—
Positive reviews87.0% of reviews—
Number of ratings204 — better—
Update frequencyEvery 9 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhoneiPhone, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size95 MB3 MB
Age rating4+17+
DeveloperKory BuckNicholas Figliolia

In-app purchases

1 purchases

Mibrary

Subscriptions1
  • Mibrary Pro7 Days trial$2.991 Month
None

PlotLock

No in-app purchases

Questions

Is Mibrary free?
Mibrary is free to download, with in-app purchases available.
Is PlotLock free?
PlotLock is free to download, with no in-app purchases.
Do Mibrary or PlotLock have ads?
Neither Mibrary nor PlotLock shows ads.
Which is updated more often, Mibrary or PlotLock?
Mibrary ships an update every 9 days, and PlotLock every 2 weeks. Most recently, Mibrary was updated on November 9, 2026 and PlotLock on October 31, 2026.

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