Tuble: Your PDFs, as books.
Turn any PDF into an ebook that fits your screen.
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Letter 1
To Mrs. Saville, England
You will rejoice to hear that no disaster has accompanied the commencement of an enterprise which you have regarded with such evil forebodings.
I am already far north of London, and as I walk in the streets of Petersburgh, I feel a cold northern breeze play upon my cheeks, which braces my nerves and fills me with delight.
See it work.
Letter 1
To Mrs. Saville, England
You will rejoice to hear that no disaster has accompanied the commencement of an enterprise which you have regarded with such evil forebodings. I arrived here yesterday, and my first task is to assure my dear sister of my welfare and increasing confidence in the success of my undertaking.
I am already far north of London, and as I walk in the streets of Petersburgh, I feel a cold northern breeze play upon my cheeks, which braces my nerves and fills me with delight. Do you understand this feeling?
Tuble reads the page, joins words split across lines, drops running heads and page numbers, and sets the text again in your font, size and page colour.
More than a reader.
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Books
Up to p. 87 · no spoilers
- Letters 1–4Captain Walton writes to his sister as his ship sails north.
- Ch. 1–2Victor remembers his childhood in Geneva with Elizabeth and Clerval.
- Ch. 3He leaves for the university at Ingolstadt.

Letter 1
To Mrs. Saville, England
You will rejoice to hear that no disaster has accompanied the commencement of an enterprise which you have regarded with such evil forebodings. I arrived here yesterday, and my first task is to assure my dear sister of my welfare and increasing confidence in the success of my undertaking.
I am already far north of London, and as I walk in the streets of Petersburgh, I feel a cold northern breeze play upon my cheeks, which braces my nerves and fills me with delight.
Books and papers, kept apart.
Questions.
Does Tuble work on scanned PDFs?
Yes. Tuble reads scanned pages with text recognition on your device. Scanned PDFs are part of Tuble Pro.
Do my PDFs leave my device?
No. Tuble converts and reads your files on your device, and the summaries use Apple Intelligence on your device. There is no account, and there are no ads or tracking.
Is Tuble free?
Tuble is free to download. Pro is an optional one-time purchase, priced in your App Store currency.
Which devices does it run on?
iPhone and iPad with iOS 26 or later.