# Article.Audio vs Readio Article.Audio records 2,312 monthly visits with +68.8% month-over-month growth and Freemium pricing. Readio records 12,402 monthly visits with +6.7% growth and Freemium pricing. | Metric | [Article.Audio](https://openaitools.app/tool/article-audio) | [Readio](https://openaitools.app/tool/readio-1) | | :--- | :--- | :--- | | Website URL | https://article.audio | https://readiolabs.org | | Categories | AI Text-to-Speech, AI Speech Synthesis, AI Voice Generator, AI Reader | AI Reader, AI Text-to-Speech, AI PDF, AI Audio Enhancer | | Pricing Model | Freemium | Freemium | | Monthly Visits | 2,312 | 12,402 | | MoM Growth Rate | +68.8% | +6.7% | | Primary Market | United States | United States | | Direct Visits | 910 | 4,981 | | Review Score | 4.1 | 4.2 | | Saved Count | 0 | 0 | | Supported Platforms | Website | Website | ## Article.Audio Article.Audio is built around a simple idea: if you don't have time to read, you can listen instead. You paste a web link, drop in raw text, upload a PDF or photograph a page, pick a language, and the app renders the material as speech. The language list spans well over a hundred locales, from English, French and Japanese variants through to regional Arabic, Spanish and Indian language voices, and each voice carries a speaking style such as narration, newscast, cheerful, calm or whispering. The workflow is deliberately lightweight. There is no software to install and no account barrier before you try the converter — you can sign in with Google or an email address, generate an audio file, then tag, manage and share your clips from a personal library. Because the output is a portable audio file rather than a streaming-only player, the results work well for commutes, workouts and accessibility workflows. The product follows a freemium model: the core conversion experience is available to try, while a Pro upgrade unlocks the wider set of features. Article.Audio is powered by Thundercontent, and its presentation is aimed at readers, students, commuters and anyone who prefers listening to reading. **Pricing & Plans:** Freemium. The converter and voice library are available to try for free, and an Article.Audio Pro upgrade unlocks the full feature set. Tier details are shown inside the app rather than on a public pricing page. - **Multi-source input:** Convert web links, pasted text, PDF documents and photos of printed pages into speech from a single interface. - **140+ languages and locales:** Choose from a very broad voice library covering regional variants such as French (Canada), Spanish (Mexico), Arabic (Egypt) and multiple Indian languages. - **Natural voices with speaking styles:** Voices support styles including narration, newscast, cheerful, calm, affectionate, poetry reading and whispering for different listening contexts. - **Personal audio library:** Saved clips live in your account, where you can tag them and share them with other people. - **No-install web workflow:** Everything runs in the browser, so it works from a laptop, tablet or phone without installing desktop software. **Strengths:** Handles links, raw text, PDFs and photos from one screen; Very wide language and locale coverage with regional accents; Voices offer expressive speaking styles rather than a single flat read; No installation needed and login is quick via Google or email **Limitations:** Public pricing details are limited; plan comparison happens inside the app; Output quality depends heavily on how cleanly the source text extracts; Advanced features sit behind the Pro upgrade [Profile (Markdown)](https://openaitools.app/tool/article-audio.md) ## Readio Readio is an AI text-to-speech reader designed around a simple observation: a lot of reading does not require your eyes. Reports, course readings, ebooks, and long articles can be absorbed while commuting, exercising, or doing chores, if the audio is clear enough and you can still track where you are. Readio's core feature set is built to make that practical rather than fiddly. The reader works in two modes. A text reader handles webpages and pasted text, while a file reader accepts PDF, EPUB, DOCX, RTF, ODT, HTML, TXT, and Markdown uploads, so you generally do not need to convert anything first. During playback, sentences highlight in sync with the audio and the page scrolls automatically, which is the difference between listening and actually following along. Playback controls let you change speed, jump between sections, and move to specific parts of a long document. On the voice side, Readio uses OpenAI's text-to-speech engine and exposes six voices with distinct characters, from the balanced Alloy to the narrative Fable and the bright Nova. It advertises reading support across more than 140 languages and dialects. There is also a practical filtering layer that skips footnotes, superscripts, and bracketed asides so the audio stays clean, with the option to manually exclude sections. Readio runs on a freemium model with a free tier and paid plans. **Pricing & Plans:** Freemium. A free tier lets you start listening at no cost, and paid plans remove usage limits and unlock the full feature set. Exact caps vary, so check the pricing page for current terms. - **Live highlight and auto-scroll:** As the document is read, sentences highlight in sync with the audio and the page scrolls automatically, so you never lose your place. - **Natural neural voices:** Six OpenAI TTS voices, including Alloy, Echo, Fable, Onyx, Nova, and Shimmer, cover neutral, narrative, and expressive styles for different content types. - **140+ languages and accents:** Read in over 140 languages and dialects, with regional English, German, French, Spanish, and Chinese variants available. - **Smart content filtering:** Built-in filters skip footnotes, superscripts, and bracketed text, and you can manually exclude sections you do not want spoken. - **Broad document format support:** Upload and listen to PDF, EPUB, DOCX, RTF, ODT, HTML, TXT, and Markdown files without converting them first. **Strengths:** Handles a genuinely wide set of document formats without conversion; Synced highlighting makes long-form listening much easier to follow; 140+ language and dialect coverage with regional accent variants; Practical content filtering for footnotes and asides **Limitations:** Free tier has usage limits; heavy listening pushes you to a paid plan; Voice selection is tied to the underlying OpenAI TTS voice set, so you get six voices rather than a large library; Very large files may hit upload size limits on lower tiers [Profile (Markdown)](https://openaitools.app/tool/readio-1.md) ## Frequently Asked Questions ### How do Article.Audio and Readio compare in monthly traffic? Article.Audio has 2,312 monthly visits, while Readio has 12,402. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? Article.Audio has a month-over-month growth rate of +68.8%; Readio has +6.7%. ### How does pricing compare? Article.Audio: Freemium. Freemium. The converter and voice library are available to try for free, and an Article.Audio Pro upgrade unlocks the full feature set. Tier details are shown inside the app rather than on a public pricing page. Readio: Freemium. Freemium. A free tier lets you start listening at no cost, and paid plans remove usage limits and unlock the full feature set. Exact caps vary, so check the pricing page for current terms. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [ElevenReader by ElevenLabs](https://openaitools.app/tool/elevenreader-by-elevenlabs) | 42,396,771 | +26.1% | Free | Listen to books, PDFs and articles in lifelike AI narration | [.md](https://openaitools.app/tool/elevenreader-by-elevenlabs.md) | | 2 | [Speechify](https://openaitools.app/tool/speechify) | 5,457,475 | +0.5% | Freemium | Text to speech and voice AI across every device | [.md](https://openaitools.app/tool/speechify.md) | | 3 | [NaturalReader](https://openaitools.app/tool/naturalreaders) | 3,249,984 | -3.2% | Freemium | Turn any text, PDF, image or book into lifelike AI speech | [.md](https://openaitools.app/tool/naturalreaders.md) | | 4 | [Luvvoice](https://openaitools.app/tool/luvvoice-free-text-to-speech) | 1,438,923 | -8.2% | Freemium | Free AI text to speech with 200+ voices in 70+ languages | [.md](https://openaitools.app/tool/luvvoice-free-text-to-speech.md) | | 5 | [AnyToSpeech](https://openaitools.app/tool/anytospeech) | 988,327 | +28% | Freemium | All-in-one AI speech, transcription, and voice cloning studio | [.md](https://openaitools.app/tool/anytospeech.md) | | 6 | [Peech: Text to Speech Reader](https://openaitools.app/tool/peech-text-to-speech-reader) | 353,093 | -26% | Freemium | Listen to anything. Beautifully. | [.md](https://openaitools.app/tool/peech-text-to-speech-reader.md) | | 7 | [Crikk](https://openaitools.app/tool/crikk) | 212,116 | -14.5% | Freemium, Free Trial, Paid | Natural AI text to speech with 910+ voices on web, iOS and Android | [.md](https://openaitools.app/tool/crikk.md) | | 8 | [Read PDF Aloud](https://openaitools.app/tool/read-pdf-aloud) | 88,455 | -21.4% | Freemium | Turn any PDF into natural AI speech and listen anywhere. | [.md](https://openaitools.app/tool/read-pdf-aloud.md) | | 9 | [Audeus: Text to Speech Reader](https://openaitools.app/tool/audeus-text-to-speech-reader) | 32,118 | -37.8% | Freemium, Free Trial | Turn PDFs, docs and web pages into natural-sounding audio you can listen to anywhere | [.md](https://openaitools.app/tool/audeus-text-to-speech-reader.md) | | 10 | [Read Aloud Reader](https://openaitools.app/tool/read-aloud-reader) | 28,361 | +87.7% | Freemium | Free browser text-to-speech with natural neural voices | [.md](https://openaitools.app/tool/read-aloud-reader.md) | --- Source: https://openaitools.app/compare/article-audio-vs-readio-1 More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)