Comparison

UniBook vs PdfSpeaks

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

Head to head
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. — WHY READERS CHOOSE UNIBOOK — 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. — FEATURES — EPUB READER • Adjustable text size and reading themes • Light, sepia, and dark reading themes • Save highlights and quotes • Share quotes as polished images • Resume from your saved position • See reading progress in the reader and your library PDF READER • Native PDF viewing • Page and progress tracking • Saved position for reliable resume • Progress visible alongside your other books AUDIOBOOK PLAYER • M4B and MP3 audiobooks • Single-file and multi-file books • Playback speed from 0.5x to 2x • Sleep timer • Background playback and lock-screen controls • Resume from your last position • Chapter navigation LIBRARY MANAGEMENT • Custom shelves and favorites • Dedicated Reading and Finished shelves • Active books stay easy to reach; completed books move to the end • Import several compatible files from Files • Add books and audiobooks from other apps with the Share extension • Share or remove your own files at any time READING STATISTICS • Daily reading and listening time • Reading streaks and daily goals • Yearly activity graph • Year in Review SIRI • Resume your last audiobook with the “Play 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.

About

PdfSpeaks

Read full description

PdfSpeaks transforma livros digitais em audiobooks com narração por inteligência artificial. Envie arquivos PDF ou EPUB, acompanhe sua biblioteca e comece a ouvir enquanto o livro é preparado progressivamente. O app organiza o conteúdo em trechos, mantém seu progresso de reprodução e oferece uma experiência simples para continuar ouvindo de onde parou. Recursos: - Upload de PDF e EPUB - Biblioteca pessoal de livros - Reprodução de audiobooks gerados por IA - Progresso salvo automaticamente - Capas e metadados do livro Termos de Uso (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Política de Privacidade: https://lp.pdfspeaks.com/privacy

Screenshots

UniBook4 screens
PdfSpeaks4 screens

Verdict

The call

The clearest difference is update cadence: PdfSpeaks at weekly against UniBook's every 3 weeks. PdfSpeaks also leads on iOS requirement (15.0 vs 26.0). UniBook's advantage is device support. On price and in-app purchases 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. UniBook sells 1 one-off in-app purchase and PdfSpeaks sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

UniBook ships an update every 3 weeks, PdfSpeaks weekly. The most recent releases landed on September 9, 2026 and September 12, 2026 respectively.

Scorecard3 real differences · 3 level
UniBook versus PdfSpeaks: the parameters behind the verdict, then further details
ParameterUniBookPdfSpeaks
PriceFreeFree
Update frequencyEvery 3 weeksWeekly — better
AdsNo—
In-app purchasesYesYes
DevicesiPhone, iPad — better—
Requires iOS26.015.0 — better
Further details — not scored
Size15 MB74 MB
Age rating+44+
DeveloperDenis TroninSintesy

In-app purchases

1 purchases

UniBook

One-time1
  • UniBook Premium$49.99
2 purchases

PdfSpeaks

Subscriptions2
  • PdfSpeaks Monthly Plan$14.991 Month
  • PdfSpeaks 6-Month Plan$49.996 Months

Questions

Is UniBook free?
UniBook is free to download, with in-app purchases available.
Is PdfSpeaks free?
PdfSpeaks is free to download, with in-app purchases available.
Which is updated more often, UniBook or PdfSpeaks?
UniBook ships an update every 3 weeks, and PdfSpeaks weekly. Most recently, UniBook was updated on September 9, 2026 and PdfSpeaks on September 12, 2026.

Other comparisons