Comparison

ULSA DRM vs LaziBook

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

Head to head
About

ULSA DRM

Features
Read full description

ULSA DRM là ứng dụng đặt mượn, đọc sách của Thư viện Trường Đại Học Lao Động - Xã Hội

About

LaziBook

Transform your ebooks into audiobooks with natural-sounding voices, all processed on your device. Enjoy offline listening, customizable playback, and advanced reading features for various file formats.

Highlights
  • On-device audiobook generation
  • Offline listening
  • Customizable voices and playback speed
  • Supports multiple ebook and comic formats
  • Page highlighting and self-turning
  • Background sound themes
  • On-device translation
Features
Read full description

LaziBook turns every book you own into an audiobook. Open EPUB, PDF, Kindle, Word files or comics and listen in natural voices — speech is generated right on your iPhone or iPad, with no internet, no account and no ads. LISTEN • Tap Listen and reading starts from the page you are on; the current sentence is highlighted, each word lights up as it is spoken, and pages turn by themselves. Tap any sentence to read from there. • Keeps reading with the screen locked, with controls on the Lock Screen, Dynamic Island and headphones. • Background sound: 18 music themes and 12 ambient sounds (rain, a flowing stream, campfire…) that play along with the voice. • A separate voice for dialogue, custom pronunciations for any word, and Speak for any selected passage. • Speed 0.75–2×, sleep timer and an Up Next queue; export audiobooks as M4B with chapters. VOICES ON YOUR DEVICE • 30 Vietnamese voices from the North, Centre and South, each in two editions: Turbo, with expressive 48 kHz audio (iPhone 13 / SE 3 and later, iPads with A15 or M1), and Nano, light and battery-friendly on every device. When Turbo can't keep up or the device is hot, LaziBook switches to the matching Nano voice so playback never stalls. • 10 English voices. LaziBook picks the right voice for the language of each book and each sentence. • Studio: preview every voice, add pauses and emotions, write multi-voice scripts and save them as MP3 with cover art. • Create your own voice from 5–8 seconds of recording — processed entirely on your device, never uploaded, synced through iCloud. BOOKS THAT LOOK THE PART • Book effect with page edges, spine and pages that curl under your finger; two pages on a landscape iPad, or vertical scrolling. • Cover templates: 6 layouts, 8 styles, 6 palettes each — design a beautiful cover from your own picture; books without a cover get one that suits their genre. • Clean Up & Convert: rewrite a book as a tidy EPUB 3 laid out like an edited edition — red chapter titles, a large initial letter, rebuilt contents, spelling fixes; turn TXT, Word, Kindle and text PDFs into EPUB 3, or export an A5 PDF to print. • Six light and dark themes; highlights in five colours, notes, bookmarks and a Notebook; footnotes open in place. LOOK UP AND TRANSLATE • Look up a word or a whole passage with Lazidi (Vietnamese, English, Chinese, Japanese): select a passage for its word list and tap a word for its meaning; or use the built-in Dictionary. Pinyin and Sino-Vietnamese readings above Chinese characters. • Translate English, Chinese, Japanese and Korean books into Vietnamese on your device: read side by side, sentence by sentence, or listen to the translation; Chinese names follow their Sino-Vietnamese readings. Works offline after a one-time download (about 440 MB). PDFS AND COMICS • PDFs keep their original printed layout, with the current sentence highlighted on the page; scanned books and photographed pages are recognized on your device so they can be read aloud. • Comics in CBZ, CBR, CB7, CBT and PDF: right-to-left reading for manga, vertical scrolling for webtoons. LIBRARY • 15 formats: EPUB, PDF, MOBI, PRC, AZW, AZW3, DOCX, TXT, RTF, Markdown, FB2, CBZ, CBR, CB7, CBT. • Add books from Files, Google Drive, Dropbox, OPDS servers (Calibre, Komga, Kavita…), or paste a Wikisource, Project Gutenberg or story-site link; Free Books to listen right away. • Books live in iCloud Drive › LaziBook, shared with your iPad and Mac; reading positions, highlights, notes, covers and custom voices sync through your own iCloud. • Quick Find, book status, smart shelves, reading and listening statistics with a daily goal; widgets and a Read button for Control Center. PRIVACY No account, no ads, no tracking. Your books, notes and custom voices stay on your device and in your own iCloud. Note: DRM-protected books cannot be opened. On-device translation requires an iPhone or iPad with an A13 chip or later and at least 4 GB of RAM.

Screenshots

ULSA DRM3 screens
LaziBook4 screens

Verdict

The call

The clearest difference is iOS requirement: ULSA DRM at 14.0 against LaziBook's 17.0. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
ULSA DRM versus LaziBook: the parameters behind the verdict, then further details
ParameterULSA DRMLaziBook
PriceFreeFree
Rating—5.0 (9 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—9 — better
Update frequency—Daily
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better17.0
Further details — not scored
Size94 MB679 MB
Age rating4+4+
DeveloperD&L Technology Integration And Consulting Joint Stock CompanyPham Hung

In-app purchases

None

ULSA DRM

No in-app purchases

None

LaziBook

No in-app purchases

Questions

Is ULSA DRM free?
ULSA DRM is free to download, with no in-app purchases.
Is LaziBook free?
LaziBook is free to download, with no in-app purchases.
Do ULSA DRM or LaziBook have ads?
Neither ULSA DRM nor LaziBook shows ads.

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