Speechify

AI文本转语音应用，将文档、网页转换为自然语音，支持60+语言和1000+语音

Voice and conferencing speech synthesis natural human voice

https://speechify.com/

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In-depth Report

Speechify is a "listening" tool that turns text into natural speech. It was founded in 2017 by Cliff Weitzman, who has dyslexia. Its biggest selling point is not simply the quality of sound synthesis, but turning web pages, PDFs, and documents into audible content with one click, and reconstructing the reading experience around "listening." As of 2025-2026, officials said it had more than 55 million users, and it won the Apple Design Award for "Diversity and Inclusion" in 2025. It is popular among people with dyslexia and attention deficit disorder (ADHD), but it has also been criticized by users for a long time because of its high annual fee, difficult-to-cancel automatic renewal, and weak free version.
The founder, Cliff Weitzman, himself has dyslexia and ADHD. In order to listen to textbooks when he was a student at Brown University, he built the first tool to convert text into audio. The company was officially founded in 2017 and is headquartered in Miami, USA. The team has more than 200 people. His brother Tyler Weitzman serves as co-founder and head of AI. Weitzman was named to Forbes' "30 Under 30" (2017, Accessibility). In terms of user scale, TechCrunch reported that it had approximately 23 million users in 2024, and the official number will increase to more than 50 million by 2025-2026. In terms of financing, publicly verifiable cumulative financing is approximately US$4.5 million (early seed round), with investors including Forerunner Ventures, Great Oaks, Streamlined Ventures, etc.; the company has never disclosed a valuation. There have been rumors circulating in the market that "Sequoia led a $120 million Series B investment", but authoritative sources such as TechCrunch, Forbes, CB Insights, Tracxn, etc. have not confirmed it and should be regarded as unconfirmed information.
The core function is text-to-speech (TTS): converting PDFs, web pages, documents, and even captured pictures (OCR) into emotional and highlightable reading speech, and the speed can be adjusted up to 4.5 times. The voice library has more than 1,000 AI voices, covering more than 60 languages, and supports cross-device synchronization. Platform coverage is comprehensive: Web, Chrome and Edge extensions, iOS, Android, Mac and Windows clients. In recent years, the product range has obviously expanded from "reader" to "voice AI workbench". Voice Typing's voice input speed is claimed to be 160 words per minute, and it can also help you revise your grammar; Voice AI Assistant can do Q&A and summary based on the content you are listening to; AI Podcast can turn documents into podcasts with one click; Meeting Note Taker can summarize meeting recordings; Voice-First Docs supports using voice to create documents and cross-document Q&A. The technical base is a self-developed SIMBA model. SIMBA 3.0 was launched in February 2026 and entered the top ten in the global TTS list. The Windows version released in March of the same year can even run the model locally on the device (SIMBA TTS + Whisper transcription), focusing on privacy and enterprise scenarios.
The free version can be used, but it only has 10 mechanical sounds, a maximum speed of 1.5 times, a limited number of files and usage, and the experience gap is obvious. Paid Premium is about $29/month or $139/year on the web, $139.99/year on iOS, and $99.99/year on Google Play; Studio is billed by points (1 point is approximately equal to 1 second of audio), and the public API is about $10 per million characters. Customized quotations for companies, teams, and schools. Third-party data (Sensor Tower caliber) shows that about 70% of its application revenue comes from annual subscriptions, which is a typical "low monthly activity, high customer unit price (ARPU)" model. In mid-2024, global monthly revenue will be approximately US$3.4 million.
The overall reputation is positive but controversial. The App Store rating is about 4.7 (435,000 reviews), the Chrome extension is 4.6 (22,400 reviews), Google Play has over 260,000 reviews, Trustpilot is 4.6 (6000+ reviews), and G2 is about 4.5. The scores are not low. What users like most is that the voice is natural and like real people, and that it is almost "life-changing" for people with dyslexia, ADHD, and low vision. Some students said that reading homework that originally took more than 30 minutes can be reduced to 10 minutes with it. Office workers like to "listen" to papers, contracts, and medical records while commuting. Negative comments almost all revolve around money: the annual fee is high, and many channels can only be paid annually; automatic renewal is difficult to cancel, and some users on Trustpilot said that they were deducted 139 to 230 US dollars and could not contact human resources; the free version is too weak; even Premium has a monthly limit of about 150,000 words, and will be downgraded back to ordinary voice; sometimes the reading is mechanical and the pronunciation of proper nouns is inaccurate.
The media generally distinguishes Speechify from ElevenLabs: ElevenLabs focuses on sound quality and sound cloning, and is geared toward creators and audiobooks; Speechify is a mobile-first "one-stop shop for reading and listening" that relies on a large number of integrations (Gmail, Canvas, iCloud, etc.) to make itself a reading portal. Similar ones include Murf (corporate dubbing), NaturalReader (accessible reading), PlayHT, LOVO, Amazon Polly, Descript, and "listening and reading" adjacent tools such as NoteGPT and Readwise Reader. TechCrunch commented that it wants to become the center of the reading experience through intensive integration.
Voice cloning is the biggest compliance risk. Consumer Reports tested six voice cloning products in March 2025 and found that Speechify, like ElevenLabs, PlayHT, and LOVO, only used "check-the-box self-certification" without any technical consent mechanism, which may violate Section 5 of the U.S. Federal Trade Commission Act. The agency therefore called on the FTC and state attorneys general to intervene (there are currently no specific lawsuits against Speechify). Forbes Africa also reported in 2023 that voice actors were worried about AI taking over jobs, and Speechify responded to endorsement cooperation with celebrity voices such as Snoop Dogg and Gwyneth Paltrow as "fully authorized." There are also unconfirmed claims that its terms of service grant an irrevocable and permanent license to user-uploaded content, as well as rumors of capturing fan fiction in the early years, which should be taken with caution. On the whole, the celebrity's voice is an authorized endorsement, and there has been no litigation over portrait rights.
It is very suitable for people with dyslexia, ADHD, low vision or visual impairment. It is also suitable for students, researchers, legal and medical practitioners who need to digest a large number of documents, and people who want to use their fragmented time to "listen" to the information. It is also good for foreign language learners to practice their listening skills by reading aloud in multiple languages. It is not suitable for light users who are price-sensitive and only want to use it occasionally - the free version will persuade them to quit, and the annual payment threshold is high. If you value pure sound quality or sound cloning, ElevenLabs is more right; if you only want Chinese scenes, domestic Microsoft Azure TTS, iFlytek, Byte Volcano Engine (Beanbao Voice), and MiniMax Speech 2.6 are all powerful Chinese alternatives.
Speechify is a representative product that redefines "reading" as "listening". It has outstanding value in barrier-free and multi-tasking scenarios. However, high pricing, difficult-to-cancel renewals and a weak free version determine that it is more suitable for heavy users who are willing to pay for "listening". With the SIMBA local model and voice assistant, it is moving from a reading tool to a full-stack voice AI workbench.

User Reviews

i5mhfnwne_q

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回不去了，现在看长文都习惯性点开听。

LauraKim

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名人声音就是个噱头，史努比那个听长内容真不适应，还是正经 AI 音稳。

田超

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免费版太坑了，10 个机械音还限速 1.5 倍，根本没法判断值不值。

j5jxwmphp88

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声音 yyds，就是太贵了。

Rebecca767

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跨设备同步是真的稳，手机听到一半换笔记本能从同一句接着来，不像某些工具每次都要重新定位。

Ronald_NelsonIII

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Premium 声音确实自然，听久了都忘了是 AI 念的。

KeithDavisSr4

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学生党狂喜，把教材拍照 OCR 一下就能听，早八赶路上直接过一遍，省下不少死磕的时间。

Gregory.Peterson_880

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AI 总结功能意外好用，先扫一眼要点再决定要不要听全文，通勤时间省了不少。

or9d3g

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说个真实的踩坑经历。我在三天试用期内就点了取消，系统也给我发了「取消成功」的确认邮件，结果月底照样被扣了 229.99 美元。之后跟客服来回扯了三封邮件、耗了两周才把钱退回来。产品本身是好用的，但试用转付费这一套的透明度实在太差，建议大家用虚拟卡、并且在电脑端而非 App 里取消。

KLee_66

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我有阅读障碍，Speechify 是真的能改变工作方式。通勤时 2.2 倍速听客户报告，比盯着屏幕读快一倍还多，记的也更好。

ACampbell

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年付一上来就扣 139 刀，说是按月其实年付，这个定价套路有点恶心。

BLkin

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苹果商店订阅的取消比官网顺多了，走 App Store 自带管理就行，没那么多弯弯绕。

蝴蝶408

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我每周要啃五六篇长篇研报，以前光是坐下来读就耗掉一整个晚上。现在 2.2 倍速通勤听，配合高亮文字，反而比默读记得更牢。对我这种 ADHD 来说，Speechify 不是「锦上添花」而是「刚需」。年付 139 刀摊到每天不到四毛，真用起来不亏。

LClark_20236

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我是个读 PDF 合同的法律从业者，以前看五十页协议眼睛要瞎。现在跑步机上边走边听，还能顺手留语音笔记，效率提升不是一点半点。不过复杂排版的长文档偶尔会跳行、丢位置，这点还得改进。整体来说，重度阅读者闭眼入，轻度用户真的别碰年付。

范萱

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5 倍速纯属营销话术，我实测 3 倍往上基本就听不清了，日常 2.2 倍最舒服。

bigduck436

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英文朗读很自然，但遇到生僻术语偶尔会念错，专业文献得留个心眼核对一下。

郭宇

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跟 ElevenLabs 比过，人家强在声音克隆和有声书制作，Speechify 强在「把任何东西变可听」这个阅读场景。如果你是想自己消费信息、而不是做配音，Speechify 更顺手。但纯配音质量确实 ElevenLabs 更顶。

Benjamin_Rogers369

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免费版只有 5 个文件额度，想先试试水都不够，等于逼着你直接买年付，体验很劝退。

Speechify

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