Compare · NaturalReader vs Paper2Audio
NaturalReader vs Paper2Audio
NaturalReader: AI text-to-speech app for personal use that reads PDFs, documents, books, webpages and study materials aloud. Paper2Audio: Document-to-speech app that turns PDFs, ebooks, papers and web articles into audio, skipping page numbers, footnotes and citations. Here is how they differ, and where Book2Speech fits if what you want is your books as audiobooks.
Choose NaturalReader if…
•
MP3 download of narrated text on every paid plan (1 million characters a month).
•
A pronunciation editor for correcting how words and names are read.
•
A free tier with unlimited listening using the free voices.
•
Voice cloning on Plus and Pro, and an OCR scanner for printed pages.
Choose Paper2Audio if…
•
A generous free plan: 56 hours of new audio a week.
•
Built for papers: reader view with tables, figures and math, and skips footnotes, citations and page numbers.
•
Offline listening on the mobile apps, and a native Android app.
•
A sleep timer that can stop at the end of a chapter or document.
Or, for your books: Book2Speech
•
Any book, not just the bestsellers that got an audiobook: fewer than 1 in 100 books ever does.
•
Unlimited free listening in English with Standard voices, no trial clock.
•
A real audiobook file to keep: M4B with chapters and cover, or MP3. One is included on the Free plan.
•
Built for whole books: the book’s own chapters, a start past the front matter, page clutter left out of PDFs.
•
265 narrators in 42 languages, and 70,000 free classics ready to play.
•
Paid plans from $4.99 a month.
Notes on the comparison
Pricing shown in USD on 2026-10-07 from the vendor help centre; the US App Store also lists a Premium plan at $9.99/month or $59.99/year.
Formats from the App Store description: PDF, Word (.doc and .docx), PowerPoint, RTF, TXT, DRM-free EPUB and images. MOBI is absent.
Offline listening is through downloaded MP3 files (“listen offline”), a paid-plan feature.
The help centre mentions jumping to headings (Contents) but not chapter detection, so it is shown as not verified.
Prices in USD on 2026-10-07. The pricing page shows $16/month with annual billing (“Save 20%”); the US App Store lists Plus Monthly $20.00 and Plus Annual $191.99.
Formats from the vendor FAQ: PDF, EPUB, HTML, TXT, DOCX, DOC, RTF and Markdown; the App Store adds scanned documents. MOBI is absent.
Plus subscribers can download audio files, which the FAQ says are M4A (Opus); MP3 and M4B are not named, so export is shown as not verified.
The FAQ describes voices “optimized for … pronunciation accuracy” but no pronunciation editor.
Questions people ask
Which is cheaper, NaturalReader or Paper2Audio?
NaturalReader: Lite $13.90/month or $79/year; Plus $20.90/month or $119/year; Pro $25.90/month or $159/year (Personal version, USD). Paper2Audio: Plus $20/month or $191.99/year on the US App Store ($16/month billed annually on the pricing page): 168 hours a week, audio and transcript downloads. For books, Book2Speech starts free and from $4.99 a month.
Which has a better free plan, NaturalReader or Paper2Audio?
NaturalReader: Free: unlimited listening with free voices; AI voices limited (20,000 characters a day with Lite voices, 4,000 with Plus voices); no MP3 conversion. Paper2Audio: Free: 56 hours of audio generation a week, all AI voices, offline listening on the mobile apps (content may be used to improve models). Book2Speech’s Free plan has unlimited English listening with Standard voices.
Can I download audiobooks with NaturalReader or Paper2Audio?
NaturalReader: MP3. Paper2Audio: not confirmed on its own pages. Book2Speech downloads an M4B with chapters and cover, or an MP3, and the Free plan includes one.