NaturalReader has been a dependable name in text to speech for a long time, with a genuine free tier and paid plans that add more voices and OCR. ReadLoud is newer and takes a different approach to pricing: instead of a subscription, you buy minutes of audio and spend them only on what you actually listen to. This is a straight, honest comparison, including the places NaturalReader is simply better.
What NaturalReader does better
Be clear eyed about this first. NaturalReader covers more platforms: a web reader, downloadable desktop software for Windows and Mac, mobile apps, and a Chrome extension, so it fits into more workflows than a web app can. Its paid tiers include OCR for scanned or photographed pages, something ReadLoud does not offer at all right now. It has been around for years with a large existing user base and broad language support. If you want a browser extension that reads any page you land on without pasting anything in, or you need OCR for scanned documents, NaturalReader has features ReadLoud simply does not.
What ReadLoud does differently
ReadLoud's whole design starts from a different question: what if you only pay for the audio you actually generate? There is no subscription. You get 1 minute free with no account and 20 minutes free with a sign up, then buy minute packs that never expire. Replaying anything you have already listened to is always free, since it stays cached.
Beyond pricing, a few things are worth knowing. Word highlighting in ReadLoud is measured from the real generated audio using forced alignment against Google's speech recognition, rather than an estimate, so the highlight tracks what you actually hear. You can switch voices mid document without losing your place. There are four distinct engines, Fast and Studio (Gemini TTS), a preview engine, and Narrator, built on Google's Chirp 3 HD voices for a more audiobook like sound with over 50 languages and locales. The Gemini engines also take delivery styles, like narrator, newsreader, calm or podcast host, which changes the character of the reading, not just the voice. Reading customization includes OpenDyslexic as a font option, four color themes, and six accent colors. A library keeps your progress and resumes at the sentence you stopped at, synced across devices, with a sleep timer that fades out audio if you fall asleep listening.
The pay per minute math
Here is the honest version of when each pricing model wins. As a rule of thumb, about 1,500 words takes roughly 10 minutes to listen to, and a typical 300 page book runs about 10 hours of audio. ReadLoud's packs range from about $0.15 a minute on the smallest pack down to under $0.10 a minute on the largest.
The break even point against a subscription priced like Speechify's, about $139 a year, is roughly 10 hours of listening a month. Below that, paying per minute usually costs less overall. Above that, a flat yearly subscription is probably the better deal, and we would rather tell you that than pretend otherwise. NaturalReader's own subscription tiers are priced separately, so check naturalreaders.com for its current numbers if you are comparing that math directly against ReadLoud's packs.
ReadLoud vs NaturalReader
| ReadLoud | NaturalReader | |
|---|---|---|
| Pricing model | Pay per minute credits, no subscription | Free tier plus paid subscription tiers |
| Free tier | 1 minute with no account, 20 minutes with a free account | Yes, limited voices and usage |
| Voices | 30 voices across 4 engines, including audiobook style narration | Multiple standard and premium voices across many languages |
| Word highlighting | Yes, synced to the real generated audio | Yes |
| File types | PDF, EPUB, DOCX, HTML, Markdown, CSV, plain text, links | Documents, web pages, scanned pages via OCR on paid plans |
| Phone playback | Installable web app with lock screen controls and sleep timer | Native iOS and Android apps |
| Browser extension | Not yet | Yes |
| Download audio | Yes, one MP3 per document | Yes, on paid plans |
A note on privacy
Pricing and features aside, it is worth knowing what happens to what you upload. ReadLoud does not run ads, does not sell your data, and does not train models on the documents you bring in. Uploaded files are deleted after the text is extracted, and if you delete a document from your library, its audio and reading progress are deleted with it. This will not matter to everyone, but if you are reading sensitive material, research drafts, contracts, personal documents, it is a reasonable thing to check for any tool before uploading, ReadLoud included.
Who is behind each product
NaturalReader is a longer established company with a broader team and a track record stretching back many years across multiple products. ReadLoud is made by one person, and is more direct about that: fewer platforms are supported for now, since features like native apps, a browser extension, and OCR take real time to build well, and they are not there yet. What is already built, the pay per minute pricing, the four voice engines, and the forced alignment highlighting, works the way it is described here. It is fair to weigh that difference in maturity against the pricing model when deciding which fits you better right now, not just which one might add more features later.
Who should pick which
If you need a browser extension for reading any page you happen to be on, or you regularly need OCR for scanned documents, NaturalReader covers ground ReadLoud does not; see Speechify vs NaturalReader for how a similar subscription tool stacks up too. If most of what you listen to is your own documents, PDFs, research papers, EPUBs or links, and you listen occasionally rather than for hours every day, paying per minute with ReadLoud likely costs you less and gives you more precise highlighting and a wider set of voice styles to choose from. Read more on pay as you go text to speech and going without a subscription.
Try it with the free minutes or see current packs.