Comparison
NaturalReader is a cloud AI-voice platform: a web app, a mobile app and a Chrome extension all pulling from the same service, with AI podcasts, chat and quizzes layered on top of the reading. Timber is a phone-first reader that keeps the reading itself on your device and gives you 324 voices before you pay anything. Here is the honest version, including the parts where NaturalReader wins.
† NaturalReader figures read from its own pricing and product pages on 20 September 2026
Timber: on your iPhone. The speech is generated on the device, so it works on a plane and nothing is uploaded to be read.
NaturalReader: in the cloud. It is a connected service across a web app, a mobile app and a Chrome extension, and it can render a finished reading as a downloadable MP3.
Timber: nothing, and no account. 324 voices across 71 languages are included. Extra features are an optional one-time or subscription purchase.
NaturalReader: a free-forever plan with no credit card required. Paid personal plans start at Lite for $13.90 a month ($79 a year), then Plus at $20.90 a month ($119 a year), then Pro at $25.90 a month ($159 a year).
Timber: 324 without paying, in 71 languages, counting Apple’s own voices, plus your Apple Personal Voice.
NaturalReader: its site advertises AI voices in over 90 languages, but the count on the free plan isn’t published; premium, cloned and Pro-tier voices are unlocked as you move up the Lite, Plus and Pro plans.
Timber: 0.5x to 1.25x free, and the full 0.3x to 3x with Pro. The slow end is as useful as the fast end for anyone learning a language or following a hard page.
NaturalReader: doesn’t publish a specific playback-speed range on its pricing or product pages.
Timber: whole webpages, PDFs including scanned ones, EPUB books, Word and PowerPoint files, a photo of a printed page, RSS feeds, Project Gutenberg, and every tab open in your browser.
NaturalReader: PDF, EPUB, Word, PowerPoint, Numbers and Pages files, images and scanned documents through its OCR, and web pages through its Chrome extension.
Timber: iPhone, iPad, Mac and Apple Watch. iOS 18 and later. No Android, no web version.
NaturalReader: any browser through its web app, plus iOS and Android apps and a Chrome extension. It reaches Windows and Android in a way Timber does not, but has no dedicated Apple Watch app.
Timber: mark passages while you listen and hand out what you marked as a worksheet, with MLA and APA citations built in. Repeating headers and footers in a scanned chapter can be silenced across the whole document in one tap.
NaturalReader: EDU group and site licenses starting from 5 users, with a shared library for class documents, an admin console, a dyslexia font, closed captions, and AI-generated recaps and quizzes made from the reading.
A comparison page that only flatters its own product is an advertisement. These are real:
A full web app plus Android, not just Apple hardware, so a class on shared Chromebooks or Windows PCs can use it. Timber is Apple only.
EDU licenses come with a shared library and an admin console for inviting and managing a whole class or school. Timber has nothing for a school IT department to administer.
It can turn a reading into a podcast episode, let you chat with a document, and generate quizzes from it. Timber’s on-device summary doesn’t do any of that.
Record your own voice, or someone else’s with permission, and have documents read back in it. Timber has no cloning of any kind.
The honest summary: NaturalReader is a cross-platform AI voice service with classroom tools and generative features built in. Timber is a simpler, on-device reader: free to start, no account, and no server involved in reading your words back to you.
It takes about a minute and costs nothing to find out which one you like listening to.