

📊 Our Test Results:
- 🎯 音声品質: ReadSpeaker scored 9/10 vs Listnr 7.5/10 — ReadSpeaker wins
- ⚡ Language Coverage: Listnr supports 142+ languages vs ReadSpeaker 50+ — Listnr wins
- 🔒 Accessibility Compliance: ReadSpeaker meets WCAG 2.2 & ADA vs Listnr none — ReadSpeaker wins
- 📝 使いやすさ: Listnr’s simple editor vs ReadSpeaker’s enterprise setup — Listnr wins
- 🛟 統合オプション: ReadSpeaker offers LMS, SDK & API vs Listnr API only — ReadSpeaker wins

Picking the right text to speech tool feels overwhelming.
You want natural sounding voices that don’t scream “robot.”
Listnr and ReadSpeaker both promise human-like AI voices.
But they serve very different audiences.
One is built for content creators who need fast voiceovers.
The other is built for organizations that need full accessibility.
We tested both side by side for three weeks.
Here’s what we found.
概要
To give you the most accurate comparison, we tested Listnr vs ReadSpeaker head to head.
We spent weeks using each platform across real projects.
We tested voice quality, speed, pricing, and accessibility features.
私たちは、あなたが正しい選択を行えるよう、直接体験を共有しています。
ReadSpeakerとは何ですか?
ReadSpeaker is a cloud-based text to speech platform with over 20 years of experience.
It converts web pages, documents, and app text into natural sounding audio.
Schools, businesses, and government agencies use it for digital accessibility.
It supports over 50 languages with 200+ expressive AI voices.

リードスピーカー
ReadSpeaker delivers enterprise-grade text to speech with WCAG 2.2 and ADA compliance. It powers 10,000+ apps worldwide with natural sounding neural voices.
ReadSpeaker Pricing
Here’s what ReadSpeaker costs in 2026.
ReadSpeaker uses custom pricing for every customer.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| カスタム見積もり | 営業担当者へのお問い合わせ | All organizations based on usage and needs |

無料トライアル: Yes — 14-day free trial with no credit card required.
返金保証: Contact their sales team for refund policy details.
📌 注記: ReadSpeaker offers both usage-based and licensed pricing models. Schools can get fixed annual pricing based on 学生 enrollment. Businesses pay based on page views or audio production volume.
⚠️ Warning: There is no public pricing page. You must contact sales for a quote. Always get quotes from at least 3 TTS providers before committing. Some users report minimum 1-year contracts with auto-renewal.
Key Benefits of ReadSpeaker
Here’s why ReadSpeaker stands out from the competition:
- Accessibility Compliance: ReadSpeaker meets WCAG 2.2 and ADA standards. This keeps your organization legally protected.
- Deep Neural Network Voices: The DNN engine produces voices that sound natural and expressive. Words are highlighted as they’re spoken.
- 20+ Years of Experience: ReadSpeaker has been in the TTS industry longer than most competitors. They power over 10,000 apps worldwide.
- マルチプラットフォーム統合: It works with websites, LMS platforms, documents, and mobile apps. A single code snippet adds TTS to your site.
- TextAid for Learning: Students with dyslexia or visual challenges get reading, writing, and study tools. No downloads needed.
- Automatic Audio Updates: When your website or course content changes, the audio refreshes on its own. No manual re-recording needed.

ReadSpeaker Pros & Cons
✅ Pros
- Top-tier voice quality with DNN technology
- Full WCAG 2.2 and ADA accessibility compliance
- Works across web, LMS, documents, and apps
- TextAid suite for students with learning needs
- Auto-updates audio when content changes
❌ Cons
- No public pricing — must contact sales
- Enterprise focus may overwhelm solo creators
- No self-service voice cloning option
- Not all voices match the same quality standard
Listnrとは何ですか?
Listnr is an AI-powered text to speech platform made for content creators.
It turns written text into high-quality audio using over 1,000 voices in 142+ languages.
You can create voiceovers, podcasts, audiobooks, and even videos from text.
It also includes voice cloning and built-in podcast hosting.

リスト番号
Listnr is an all-in-one AI 音声ジェネレータ with 1,000+ voices in 142+ languages. Create voiceovers, clone your voice, host podcasts, and make videos from text.
リスト番号の価格
Here’s what Listnr costs in 2026. Let’s break it down.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 個人 | 月額19ドル | Solo creators and フリーランサー |
| ソロ | 月額39ドル | Small teams and frequent users |
| 代理店 | 月額99ドル | Agencies and large-scale projects |

無料トライアル: Yes — Listnr offers a free plan with limited words (about 1,000 per month).
返金保証: Contact support for refund details. Annual plans save 30-40%.
📌 注記: All paid plans include commercial rights over your audio. You can use voiceovers in ユーチューブ videos, ads, and podcasts without extra fees.
⚠️ Warning: Some users report slow support response times and occasional platform outages. Test the free plan on a real project before upgrading to a paid tier.
Key Benefits of Listnr
Here’s why Listnr stands out from the competition:
- 膨大な音声ライブラリ: Over 1,000 voices across 142+ languages and accents. No other tool at this price matches that range.
- 音声クローニング: Create a digital twin of your own voice. Record a sample and Listnr builds a custom AI voice from it.
- Built-in Podcast Hosting: Record, host, and distribute podcasts to Spotify and Apple Podcasts. No extra tools needed.
- テキストからビデオへ: Convert written text into videos with AI voiceovers. Great for social media and e-learning.
- API アクセス: A RESTful API and webhooks let developers add TTS to websites and apps.
- 商権: Every paid plan includes full rights to use audio in monetized content like ads and YouTube videos.

Listnr Pros & Cons
✅ Pros
- 1,000+ voices in 142+ languages — largest library at this price
- Voice cloning creates a digital copy of your voice
- All-in-one: TTS, podcasting, video, and dubbing
- Transparent pricing starting at $19/month
❌ Cons
- Users report frequent platform outages and lag
- Customer support can be slow to respond
- No accessibility compliance (WCAG or ADA)
- Voice quality varies — not all voices sound natural
機能比較
Ready to dive into a detailed comparison of Listnr vs ReadSpeaker?
We’ll explore 8 key features to help you pick the right tool.
| 特徴 | リードスピーカー | リスト番号 |
|---|---|---|
| 開始価格 | カスタム見積もり | 月額19ドル |
| 無料プラン | ❌ (14-day trial) | ✅ (1,000 words/mo) |
| Voice Count | 200+ | 1,000+ |
| 言語 | 50+ | 142+ |
| 音声クローン | ❌ | ✅ |
| Accessibility Compliance | ✅ WCAG 2.2 & ADA | ❌ |
| Text Highlighting | ✅ | ❌ |
| Podcast Hosting | ❌ | ✅ |
| テキストからビデオへ | ❌ | ✅ |
| 最適な用途 | Schools & enterprises | Creators & marketers |
1. AI Voice Quality
リードスピーカー: ReadSpeaker uses Deep Neural Networks to generate voices. The result is speech that captures human tone, emphasis, and natural flow. In our tests, voices sounded clear and professional across multiple languages.

リスト番号: Listnr also uses advanced AI to produce realistic voices. It pulls from Google and Amazon voice engines for variety. However, some users report that quality varies across voices. Not every option sounds equally natural.

2. Language & Voice Selection
リードスピーカー: ReadSpeaker supports over 50 languages with 200+ voice options. Each voice is carefully tuned for its language. The selection is smaller but focused on quality over quantity.
リスト番号: Listnr offers over 1,000 voices in 142+ languages. This is one of the largest libraries at its price point. If you need rare languages or regional accents, Listnr has more options.

⚠️ Warning: More voices doesn’t always mean better quality. Test both platforms in your target language before you commit.
3. Accessibility & Compliance
リードスピーカー: This is where ReadSpeaker truly shines. It meets WCAG 2.2 and ADA requirements out of the box. It includes text highlighting, page masking, dictionary tools, and a reading ruler. Organizations stay legally compliant without extra work.

リスト番号: Listnr does not focus on accessibility compliance. It can help people with visual challenges hear content. But it doesn’t include tools like text highlighting, screen masking, or WCAG-compliant widgets.
4. 音声クローン
リードスピーカー: ReadSpeaker offers custom voice creation. But it requires working directly with their team. There’s no self-service voice cloning. This makes it slower and more expensive for individual users.
リスト番号: Listnr offers self-service voice cloning. You record a short sample. The AI builds a digital copy of your voice. You can use it across all your projects. This is a big win for personal branding.

5. コンテンツ作成ツール
リードスピーカー: ReadSpeaker focuses on reading existing content aloud. It’s not designed for content creation. You won’t find ビデオ編集者, podcast tools, or dubbing features here.
リスト番号: Listnr is a full content creation suite. It includes text-to-video, AI dubbing, and built-in podcast hosting. You can create, edit, and distribute audio content from one dashboard.

6. Integration & Deployment
リードスピーカー: ReadSpeaker offers webReader, docReader, and LMS plugins. You add a small code snippet to your website. It also provides SDK and API access for deeper custom builds. It works on any device with no downloads.

リスト番号: Listnr offers a RESTful API and webhooks. Developers can add TTS to websites and CMS platforms. It also provides an embeddable audio player for blog posts. But LMS integration isn’t a core focus.

7. カスタマイズオプション
リードスピーカー: Users can adjust reading speed, voice selection, and text highlighting colors. It also offers custom pronunciation dictionaries. The focus is on making content easier to read and hear.

リスト番号: Listnr lets you control ピッチ, speed, and pauses. You can add custom pronunciations and adjust emotional tone. The TTS editor gives fine control over how each word sounds.

8. Pricing & Cost
Let’s compare the pricing models side by side.
| プランの種類 | リードスピーカー | リスト番号 |
|---|---|---|
| Free Option | 14日間無料トライアル | Free plan (1,000 words/mo) |
| Entry Level | カスタム見積もり | $19/month (Individual) |
| Mid Tier | カスタム見積もり | $39/month (Solo) |
| Top Tier | カスタム見積もり | $99/month (Agency) |
リードスピーカー: Pricing is custom for every customer. It depends on usage, users, and products. Schools get enrollment-based pricing. Businesses get usage-based or fixed annual plans. You must talk to sales to get a number.
リスト番号: Listnr offers clear, public pricing. The Individual plan at $19/month includes 20,000 words and 50 videos. The Agency plan at $99/month gives 250,000 words. Annual billing saves 30-40%.
⚠️ Warning: ReadSpeaker’s custom pricing makes it hard to budget. Listnr’s transparent pricing is better for creators who want to know costs upfront.
Different Scenarios
| If You Need… | Choose | Why |
|---|---|---|
| Accessibility compliance | リードスピーカー | WCAG 2.2 & ADA built in |
| Transparent pricing | リスト番号 | Plans start at $19/month |
| 音声クローン | リスト番号 | Self-service voice cloning |
| LMS integration | リードスピーカー | Native LMS plugins available |
| Podcast creation | リスト番号 | Built-in hosting & distribution |
| Enterprise deployment | リードスピーカー | 20+ years, 10,000+ apps |
| Most language options | リスト番号 | 142+ languages vs 50+ |
💰 Your Budget
Listnr wins on price with plans starting at $19/month. ReadSpeaker uses custom quotes. If you’re a solo creator on a budget, Listnr is the safer bet.
🔌 Your Tech Stack
ReadSpeaker plugs into LMS platforms, websites, and apps with native tools. Listnr offers API access and an embeddable player. Pick based on where your content lives.
📝 Your Content Type
If you make podcasts, videos, or social media content, Listnr’s creation tools save time. If you need to make web pages and documents audible, ReadSpeaker fits better.
🎓 Your Experience Level
Listnr is simpler to set up. Paste text, pick a voice, and download. ReadSpeaker needs more setup but offers deeper control for technical teams.
🆓 Free Trials and Demos
Listnr has a free plan with 1,000 words per month. ReadSpeaker offers a 14-day free trial with no credit card. Test both before you decide.
🛟 Support Options
ReadSpeaker offers phone support and online help with dedicated teams. Listnr provides email support, but some users report slow response times.
Switching Guide
Already using one of these tools? Here’s what to expect if you switch.
🔄 Switching from ReadSpeaker to Listnr?
✅ What you’ll gain:
- Self-service voice cloning to match your personal brand
- Built-in podcast hosting and distribution to Spotify
- Transparent pricing with no sales calls needed
❌ What you’ll lose:
- WCAG 2.2 and ADA accessibility compliance
- Native LMS and website integration tools
- Synced text highlighting and reading tools
📋 How to switch:
- Download any audio files you’ve created in ReadSpeaker
- Create a Listnr account and pick a plan
- Re-create your content using Listnr’s TTS editor
🔄 Switching from Listnr to ReadSpeaker?
✅ What you’ll gain:
- Full WCAG 2.2 and ADA accessibility compliance
- Text highlighting, dictionary, and reading tools
- Enterprise-grade support with phone and dedicated teams
❌ What you’ll lose:
- Voice cloning and personal voice creation
- Built-in podcast hosting and distribution
- Text-to-video and AI dubbing tools
📋 How to switch:
- Export your audio files and podcast episodes from Listnr
- Contact ReadSpeaker sales for a custom quote
- Install the ReadSpeaker widget on your website or LMS
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰 Pricing Transparency | リスト番号 |
| 🎯 Voice Quality | リードスピーカー |
| 🌍 Language Coverage | リスト番号 |
| 🔒 Accessibility Compliance | リードスピーカー |
| 🔌 Integration Options | リードスピーカー |
| 🎙️ Content Creation Tools | リスト番号 |
| 🛟 Customer Support | リードスピーカー |
| 🏆 Overall Winner | リードスピーカー |
🏆 WINNER: ReadSpeaker
ReadSpeaker wins 4 out of 7 categories.
Best for: Schools, enterprises, and organizations that need accessibility compliance, top-tier voice quality, and deep platform integration.
ReadSpeaker and Listnr serve two very different markets.
ReadSpeaker is the go-to for accessibility and enterprise deployment.
Listnr is the go-to for creators who need fast, affordable voiceovers.
Listnr is excellent for podcasts, videos, and social media content.
However, if you need compliance, voice quality, and long-term support, ReadSpeaker is the better choice.
Now, go out and create amazing audio content!
More of ReadSpeaker Compared
Here’s how ReadSpeaker stacks up against other competitors:
ReadSpeaker vs ヒューム
ReadSpeaker wins on: Accessibility compliance, enterprise integration
Hume wins on: Emotional AI voice analysis, research tools
ReadSpeaker vs マーフ
ReadSpeaker wins on: WCAG compliance, LMS integration
Murf wins on: User-friendly editor, team collaboration
ReadSpeaker wins on: Enterprise deployment, auto-updating audio
Speechify wins on: Personal reading app, browser extension
ReadSpeaker vs 説明
ReadSpeaker wins on: Accessibility tools, website TTS widgets
Descript wins on: Video editing, transcript-based editing
ReadSpeaker vs イレブンラボ
ReadSpeaker wins on: ADA compliance, 20+ years of trust
ElevenLabs wins on: Voice cloning quality, emotional range
ReadSpeaker vs Play.ht
ReadSpeaker wins on: Enterprise support, compliance features
Play.ht wins on: Voice variety (907 voices), creator pricing
ReadSpeaker vs ロボ
ReadSpeaker wins on: Website accessibility, DNN voice quality
Lovo wins on: Video creation tools, affordable pricing
ReadSpeaker vs ポッドキャスト
ReadSpeaker wins on: Multi-platform TTS, accessibility
Podcastle wins on: Podcast editing, recording studio
ReadSpeaker wins on: WCAG compliance, enterprise features
ダプダブ wins on: Video dubbing, social media content
ReadSpeaker vs ウェルサイドラボ
ReadSpeaker wins on: Accessibility, document reading
WellSaid Labs wins on: Studio-quality voices, team workflows
ReadSpeaker vs リボイス
ReadSpeaker wins on: Enterprise integration, compliance
Revoicer wins on: One-time pricing, emotional voices
ReadSpeaker vs ナチュラルリーダー
ReadSpeaker wins on: Organization-wide deployment, ADA tools
NaturalReader wins on: Personal use pricing, simple interface
ReadSpeaker vs 改変
ReadSpeaker wins on: Web accessibility, LMS plugins
Altered wins on: Voice morphing, creative audio tools
ReadSpeaker vs スピーチロ
ReadSpeaker wins on: Professional deployment, compliance
Speechelo wins on: One-time payment, beginner-friendly
ReadSpeaker vs TTS OpenAI
ReadSpeaker wins on: Accessibility widgets, 20+ years of trust
TTS OpenAI wins on: AI model quality, developer API
More of Listnr Compared
Here’s how Listnr stacks up against other competitors:
Listnr wins on: Language coverage (142+), podcast hosting
Murf wins on: Voice customization, team collaboration
Listnr wins on: Content creation tools, voice cloning
Speechify wins on: Personal reading, browser extension
Listnr wins on: Voice library size, podcast distribution
Descript wins on: Video editing, transcript-based editing
Listnr wins on: Language count, built-in video tools
ElevenLabs wins on: Voice realism, cloning accuracy
Listnr vs Play.ht
Listnr wins on: All-in-one platform, podcast hosting
Play.ht wins on: Voice naturalness, API flexibility
Listnr wins on: Voice count (1,000+), language range
Lovo wins on: Video production features, emotional tones
Listnr wins on: TTS voice variety, text-to-video
Podcastle wins on: Audio recording, noise removal
Listnr wins on: Podcast hosting, API integration
Dupdub wins on: アバター creation, dubbing features
Listnr wins on: Affordable pricing, more languages
WellSaid Labs wins on: Voice realism, enterprise quality
Listnr wins on: Voice library size, content creation suite
Revoicer wins on: One-time payment model, emotional voices
Listnr wins on: Voice cloning, podcast distribution
NaturalReader wins on: Simple reading app, OCR support
Listnr wins on: Language coverage, all-in-one tools
Altered wins on: Voice morphing, creative audio effects
Listnr wins on: More voices, podcast features
Speechelo wins on: One-time pricing, simplicity
Listnr vs TTS OpenAI
Listnr wins on: Built-in editor, podcast hosting
TTS OpenAI wins on: AI model quality, developer tools
Listnr vs Hume
Listnr wins on: Content creation, affordable plans
Hume wins on: Emotion AI, voice sentiment analysis
よくある質問
What does a ReadSpeaker do?
ReadSpeaker converts text on web pages, documents, and apps into natural sounding audio. It highlights words as they’re spoken. Schools and businesses use it for digital accessibility.
How much does Listnr cost?
Listnr starts at $19/month for the Individual plan. The Solo plan costs $39/month. The Agency plan is $99/month. A free plan with 1,000 words per month is also available.
ReadSpeakerは無料ですか?
ReadSpeaker is not free. It offers a 14-day free trial with no credit card needed. After that, you need a custom quote from their sales team.
Is there a free AI voice ジェネレータ?
Yes. Listnr offers a free plan with limited words. Other free options include Google Text-to-Speech and NaturalReader’s free tier. Free plans usually have word limits and fewer voices.
What is the difference between a screen reader and ReadSpeaker?
A screen reader reads the entire screen layout, including menus and buttons. ReadSpeaker only reads text content on a page. It highlights words as they’re spoken and offers tools like a dictionary and translation.













