Comparison

Lima DRM vs UniBook

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

Head to head
About

Lima DRM

Features
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The Lima DRM app is a digital document mining application, that allows users to circulate (borrow/return) digital documents and read digital content on personal devices anytime, anywhere. Main features: - Flexible search, connecting search directly to digital resource management application, easy-to-see interface, responsive searching and reading document metadata for even readers who do not have an account. - Loaning and downloading digital documents is easy for readers who already have an account - Manage personal bookshelves: reading documents, expired documents - Renew according to usage needs and return documents at any time - Support to read documents anytime, anywhere, even without an Internet connection - Various tools to exploit documents in the reading process (Bookmarks, notes, customized reading mode, ..)

About

UniBook

Features
Read full description

Tired of subscriptions? UniBook is a one-time-purchase reader for the EPUB, PDF, M4B, and MP3 files you own. Read and listen offline, keep your library organized, and pick up exactly where you left off. β€” WHY READERS CHOOSE UNIBOOK β€” PAY ONCE, READ FOR LIFE A single in-app purchase unlocks the full reader. No monthly plan and no automatic renewal. YOUR LIBRARY STAYS YOURS Import compatible DRM-free files through Files, iCloud Drive, or the Share extension. Your imported books remain on your device, UniBook does not upload your library, and no account is required. β€” FEATURES β€” EPUB READER β€’ Adjustable text size and reading themes β€’ Light, sepia, and dark reading themes β€’ Save highlights and quotes β€’ Share quotes as polished images β€’ Resume from your saved position β€’ See reading progress in the reader and your library PDF READER β€’ Native PDF viewing β€’ Page and progress tracking β€’ Saved position for reliable resume β€’ Progress visible alongside your other books AUDIOBOOK PLAYER β€’ M4B and MP3 audiobooks β€’ Single-file and multi-file books β€’ Playback speed from 0.5x to 2x β€’ Sleep timer β€’ Background playback and lock-screen controls β€’ Resume from your last position β€’ Chapter navigation LIBRARY MANAGEMENT β€’ Custom shelves and favorites β€’ Dedicated Reading and Finished shelves β€’ Active books stay easy to reach; completed books move to the end β€’ Import several compatible files from Files β€’ Add books and audiobooks from other apps with the Share extension β€’ Share or remove your own files at any time READING STATISTICS β€’ Daily reading and listening time β€’ Reading streaks and daily goals β€’ Yearly activity graph β€’ Year in Review SIRI β€’ Resume your last audiobook with the β€œPlay Last Audiobook” shortcut Supported formats: EPUB, PDF, M4B, MP3 UniBook is built for readers who manage their own digital library and want a focused, private reading experience without a recurring subscription. Note: UniBook is a reader app. It does not sell, distribute, or provide book content. You are responsible for ensuring that you have the right to use every file you import. DRM-protected files are not supported.

Screenshots

Lima DRM3 screens
UniBook4 screens

Verdict

The call

The clearest difference is in-app purchases: Lima DRM at none against UniBook's 1. Lima DRM also leads on iOS requirement (14.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. UniBook sells 1 one-off in-app purchase. Lima DRM asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 20, 2026 and September 9, 2026 respectively.

Scorecard2 real differences Β· 4 level
Lima DRM versus UniBook: the parameters behind the verdict, then further details
ParameterLima DRMUniBook
PriceFreeFree
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS14.0 β€” better26.0
Further details β€” not scored
Size84 MB15 MB
Age rating4++4
DeveloperD&L Technology Integration And Consulting Joint Stock CompanyDenis Tronin

In-app purchases

None

Lima DRM

No in-app purchases

1 purchases

UniBook

One-time1
  • UniBook Premium$49.99

Questions

Is Lima DRM free?
Lima DRM is free to download, with no in-app purchases.
Is UniBook free?
UniBook is free to download, with in-app purchases available.
Do Lima DRM or UniBook have ads?
Neither Lima DRM nor UniBook shows ads.
Which is updated more often, Lima DRM or UniBook?
Lima DRM ships an update every 3 weeks, and UniBook every 3 weeks. Most recently, Lima DRM was updated on September 20, 2026 and UniBook on September 9, 2026.

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