⚡ Quick Verdict:
- 価格: Speechify starts free, then $11.58/month annually. Synthesys starts at $20/month.
- 最適な用途: Speechify for text to speech and reading. Synthesys for creating stunning videos.
- 主な違い： Speechify turns written text into speech. Synthesys is a video and 声 スタジオ。
- Our pick: Speechify for most users. It is cheaper and built for daily listening.
Synthesys and Speechify both use artificial intelligence to turn text into speech.
But they are not built for the same person.
Speechify is a text to speech platform for reading and accessibility.
Synthesys is an AI studio for creating stunning videos and voiceovers.
This guide breaks down both tools so you can pick with confidence.
概要
This Synthesys vs Speechify comparison covers pricing, key features, and ease of use.
We also break down who each tool works best for.
Our sources include published specs, documentation, and G2 reviews.
Both tools offer a free trial or free tier to test first.
By the end, you will know which platform fits your needs.
Speechifyとは何ですか?
Speechify is a text to speech platform built for reading aloud.
書かれたテキストを数秒で自然な音声に変換します。
You can listen to documents, articles, emails, and books.
Speechify offers over 130 voices in 30 languages.
It aids users with dyslexia and visual impairments every day.
The app has grown into a voice-first productivity platform.
Here is a quick look at how the tool works in action.
🏆 Winner: Speechify
Speechify reads any written text aloud in a natural sounding voice. It works across apps, browsers, and documents.
Speechifyの価格
2026年のSpeechifyの料金は以下の通りです。詳しく見ていきましょう。
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 限定 | 月額0ドル | Testing basic text to speech |
| 年間 | 月額11.58ドル | Students and daily readers |
| 毎月 | 月額29ドル | Short-term flexible use |
Pricing verified June 2026.
無料トライアル: The Limited plan is free forever. Premium offers a 3-day trial on paid tiers.
返金保証: Speechify offers a refund window on premium plans through app store policies.
📌 注記： The annual plan bills once per year. That $11.58/month figure is the yearly cost spread out.
⚠️ 警告： The free Limited plan caps your daily words and uses fewer voices. Premium unlocks human like voices.
Speechifyの主なメリット
Here is what makes Speechify worth considering:
- 自然な声： It produces a natural sounding voice from plain text. The realistic voices sound close to a human reader.
- Reading Speed Control: You can adjust reading speed from 0.5x to 9x. This control helps fast readers and slow learners alike.
- どこでも動作します: Speechify provides apps for iOS, Android, and a Google Chrome extension. It syncs across all your デバイス.
- アクセシビリティを最優先に： It supports people with dyslexia and visual impairments. Reading textbooks aloud boosts learning.
- Scan and Listen: Snap a photo of a page and hear it read. This turns printed documents into audio.
- 複数の言語: With voices across multiple languages, it suits language learners too.
- Speechify API: Developers can add the Speechify API to their own apps and tools.
What Our Team Noticed
私たちの 作家 signed up for Speechify and used it for daily reading tasks. Here is what stood out from that hands-on time:
Speechifyの長所と短所
✅ メリット
- Natural sounding voices that are easy to listen to for hours
- Reading speed adjusts from 0.5x to 9x for any pace
- Apps for iOS, Android, and Google Chrome keep you synced
- Free plan lets you test text to speech before paying
❌ デメリット
- It does not create video, only audio from text
- The free plan limits daily words and voice choices
- Best premium features sit behind the paid subscription
Synthesysとは何ですか?
Synthesys is a content creation platform powered by AI and machine learning.
It focuses on generating realistic voices and creating stunning videos.
Synthesys AI Studio works as a web-based studio dashboard.
It offers over 300 voices in 140 languages.
The platform is tailored for enterprise marketing and commercial video.
It also includes an AI text production アシスタント for scripts.
Watch this short overview to see the studio in action.
シンセシス
Synthesys turns plain text into voiceovers and video. It suits content creators who need stunning videos at scale.
シンセシスの価格
Here is what Synthesys Studio costs in 2026. Let’s break it down.
| プラン | 価格 | 最適な用途 |
|---|---|---|
| 個人的 | 月額20ドル | ソロクリエイターとして活動を始めたばかりの人 |
| クリエイター | 月額41ドル | Active video makers |
| 仕事 | 月額69ドル | チーム利用および商用利用 |
Pricing verified June 2026.
無料トライアル: Synthesys offers a free trial so you can test voices and video before you pay.
返金保証: Synthesys has offered refund windows on paid plans through its billing terms.
📌 注記： Higher plans unlock more video minutes and AI human credits. Check current limits on the pricing page.
⚠️ 警告： Synthesys starts at $20/month and has no permanent free tier. The free trial is time limited.
Synthesysの主な利点
Here is what makes Synthesys worth considering:
- 膨大な音声ライブラリ: It offers over 300 voices in 140 languages. That range covers most multiple languages you may need.
- AIビデオ 作成: Synthesys turns text into video with avatars. This helps content creators make stunning videos fast.
- Voice Settings: You can customize voice settings like pitch and tempo. These voice settings shape tone and style.
- AIが話す写真： Turn a still photo into a talking アバター. It adds a human like face to your message.
- Unlimited Text Input: Synthesys allows unlimited text input for voiceovers. Long scripts are not a problem.
- Text Production Assistant: 内蔵 AIアシスタント drafts written text and scripts for you.
- 音声翻訳: Translate voiceovers into other languages without re-recording.
What Our Team Noticed
Our writer signed up for Synthesys and explored the studio dashboard. Here is what stood out from that hands-on time:
This short clip shows our walkthrough of the video tools.
Synthesysの長所と短所
✅ メリット
- Over 300 voices in 140 languages for global projects
- Creates full videos with AI avatars and talking photos
- Voice settings let you control pitch, tempo, and tone
- Unlimited text input handles long voiceover scripts
❌ デメリット
- No permanent free plan, only a time-limited free trial
- Starts at $20/month, pricier than Speechify’s entry plan
- Heavier studio interface takes longer to learn
機能比較
Ready to dive into a detailed comparison of Synthesys vs Speechify? We will explore the key features that separate these two tools so you can match each one to your needs.
Neither tool is a speech recognition app. Both go the other direction and turn text into speech, though Synthesys adds full video on top.
| 特徴 | スピーチファイ | シンセシス |
|---|---|---|
| 開始価格 | $0 (free), then $11.58/mo | 月額20ドル |
| 無料プラン | ✅ | ❌ (trial only) |
| テキスト読み上げ | ✅ | ✅ |
| 声 | 130+ in 30 languages | 300+ in 140 languages |
| AIビデオ 創造 | ❌ | ✅ |
| 音声クローン | ✅ | ✅ (AI Humans) |
| Mobile & Chrome Apps | ✅ | ❌（ウェブ限定） |
| Audio Translation | ✅ (Dubbing) | ✅ |
| APIアクセス | ✅ (Speechify API) | ✅ (Synthesys Lab) |
| 最適な用途 | 読書とアクセシビリティ | マーケティングビデオ |
1. 音声品質とリアリティ
スピーチファイ： Speechify uses AI technology to produce a natural sounding voice from any written text. The voices sound smooth and easy to follow over long sessions. This matters most when you listen to documents for hours, since Speechify is built and tuned for long-form listening.
シンセシス： Synthesys features AI-powered ultra-realistic voices built for video. It includes more than 50 ultra-realistic voices among its wider library. These human like voices are tuned for marketing scripts and ads.
2. 音声クローン
スピーチファイ： Speechify can clone a voice so your text reads back in a familiar tone. The cloned voice keeps a consistent tone across long files. It is a simple way to add a personal touch.
シンセシス： Synthesys offers AI Humans, which pair a cloned voice with a ビデオアバター. This goes beyond audio and gives you a face on screen. It suits brands that want a presenter.
3. Video Creation
スピーチファイ： Speechify does not make video. It is a text to speech platform focused on audio output only. If you need video, this is a clear gap.
シンセシス： Synthesys generates AI media, including video, from plain text. You write a script and the platform builds the scene. This is the core reason creators pick it for stunning videos.
⚠️ 警告： If your only goal is reading text aloud, Synthesys video tools may feel like too much. Pick the tool that matches the job.
4. Reading and Scanning Documents
スピーチファイ： Speechify can scan a printed page and read it aloud. This Scan and Listen feature helps language learners and people with visual impairments. It turns paper documents into audio fast.
シンセシス： Synthesys uses a Face form tool to set up talking avatars from your input. It is built for production, not for casual reading. Document scanning is not its focus.
5. Dubbing and Audio Translation
スピーチファイ： Speechify offers AI Dubbing that swaps the spoken language of audio. This helps you reach people across multiple languages. The pronunciation stays clear after the switch.
シンセシス： Synthesys provides Audio Translations for voiceovers and video. You can translate a project without re-recording the script. This speeds up global campaigns.
6. テキストからビデオへの生成
スピーチファイ： Speechify turns text into speech, not into video. The output is always an audio track. For text into speech alone, that is fine.
シンセシス： Synthesys handles text-to-video generation end to end. You drop in a script and pick an avatar and voice. The studio renders a finished clip.
7. API and Developer Access
スピーチファイ： The Speechify API lets developers add text to speech to their own apps. The integration is well documented. This opens the door for custom products. Developers comparing options will note that iSpeech provides APIs for both online and offline TTS integration, while Amazon Polly has over 60 voices available for developers, so Speechify sits in good company on the technical side.
シンセシス： Synthesys Lab is the testing space for new voices and media tools. It gives power users a place to experiment. Developers can build on the platform offers here.
8. 多言語サポート
スピーチファイ： Speechify covers 30 languages with over 130 voices. That is plenty for reading and study. Language learners get clear pronunciation in each one.
シンセシス： Synthesys offers multilingual support across 140 languages. This wider reach helps global marketing teams. The extra languages are a real edge for video.
9. AI Talking Photos and Avatars
スピーチファイ： Speechify has no avatar or talking photo tool. Its job ends at audio. You will not find a face on screen here.
シンセシス： Synthesys AI Talking Photos turn a single image into a speaking avatar. This is a state of the art touch for ads and lessons. It makes static images feel alive.
10. 価格設定とコスト
料金プランを並べて比較してみましょう。
| プラン | スピーチファイ | シンセシス |
|---|---|---|
| 無料 | 月額0ドル（制限あり） | ❌（無料トライアルのみ） |
| エントリ | 月額11.58ドル（年間契約） | 月額20ドル（個人向け） |
| 中 | 月額29ドル（月払い） | 月額41ドル（クリエイター向け） |
| トップ | — | $69/month (仕事) |
スピーチファイ： Speechify wins on price. It has a free plan, and the annual tier costs $11.58/month. For pure text to speech, this is the cheaper path.
シンセシス： Synthesys costs more because you also get video tools. At $20/month and up, you pay for a full studio. That price makes sense if you produce stunning videos.
さまざまなシナリオ
| 必要な場合は | 選ぶ | なぜ |
|---|---|---|
| 予算が限られている | スピーチファイ | Free plan plus cheap annual tier |
| 文書を声に出して読む | スピーチファイ | Scan and Listen built in |
| Marketing video | シンセシス | Text-to-video and avatars |
| ほとんどの言語 | シンセシス | 300+ voices, 140 languages |
| Mobile and Chrome use | スピーチファイ | Apps on every device |
| 初心者向け | スピーチファイ | よりシンプルなユーザーインターフェース |
💰 あなたの予算
Speechify starts free and stays cheap on the annual plan. Synthesys asks more because it bundles video and voice in one studio.
🔌 あなたの技術スタック
Speechify integration spans iOS, Android, and Google Chrome. Synthesys runs in the browser as a web studio dashboard.
📝 Your Content Goal
Pick Speechify to listen to written text and produce high quality content for study. Pick Synthesys to produce high quality content as finished video.
🎓 あなたの経験レベル
Speechify is user friendly and easy to start. Synthesys has more tools, so the learning curve is longer.
🆓 無料トライアルとデモ
Speechify gives you a free plan you can keep forever. Synthesys offers a free trial that runs for a limited time.
🛟 サポートオプション
Both tools offer help docs and email support. Check current response times before you commit to a paid plan.
切り替えガイド
既にこれらのツールのいずれかをご利用ですか？切り替える場合、どのような変更が想定されますか？
🔄 Switching from Speechify to Synthesys?
✅ 得られるもの：
- Full AI video creation from plain text
- AI Talking Photos and on-screen avatars
- 300+ voices across 140 languages
❌ 失うもの：
- The free forever plan
- Mobile and Google Chrome apps
- Scan and Listen for printed documents
📋切り替え方法：
- Export or save your scripts from Speechify
- Start a free trial on Synthesys AI Studio
- Paste your text and pick a voice and avatar
🔄 Switching from Synthesys to Speechify?
✅ 得られるもの：
- A free plan and a much cheaper annual price
- Apps for iOS, Android, and Google Chrome
- Scan and Listen plus faster daily reading
❌ 失うもの：
- AI video and text-to-video generation
- Talking photos and AI Humans avatars
- The 140-language voice library
📋切り替え方法：
- Save your final voiceover scripts from Synthesys
- Create a free Speechify account or install the app
- Import your text and set your reading speed
What Our Review Didn’t Cover
This comparison focused on individual users and small content creators. We did not test enterprise rollouts, bulk licensing, or deep customer interactions at scale. Our notes are based on the June 2026 versions, so features may shift over time. If you manage a large team or need heavy video output, your priorities may differ from what we covered here.
最終評決
| カテゴリ | 勝者 |
|---|---|
| 💰価格 | スピーチファイ |
| 🔊 テキスト読み上げ | スピーチファイ |
| 🎬 動画制作 | シンセシス |
| 🌐 Languages & Voices | シンセシス |
| 👶 使いやすさ | スピーチファイ |
| 📱 Apps & Access | スピーチファイ |
| 🏆総合優勝 | スピーチファイ |
🏆 WINNER: SPEECHIFY
Speechify wins 4 out of 6 categories in this comparison.
最適な用途: reading documents aloud, accessibility, language learners, and budget users.
Speechify and Synthesys are two very different products.
Speechify is the best text to speech tool for daily reading. It is cheap, user friendly, and works on every device.
Synthesys is the stronger pick for video. It pairs realistic voices with avatars to produce stunning videos.
Synthesys is excellent if your work is marketing video and ads. The 140-language reach is hard to beat.
However, if you mainly want to listen to written text, Speechify is the better choice for most users.
Speechifyの比較
Here is how Speechify stacks up against other text to speech tools:
Speechify vs イレブンラボ
Speechifyが勝利した点： mobile and Chrome apps, Scan and Listen, free plan, accessibility focus
ElevenLabsが勝利した点： more lifelike voice cloning, finer voice control, developer-grade API
Speechify vs ナチュラルリーダー
Speechifyが勝利した点： faster reading speeds, broader app coverage, slicker user interface
NaturalReaderが優れている点： support for various text formats, lower-cost tiers, simple desktop reading
Speechify vs マーフAI
Speechifyが勝利した点： daily reading workflow, document scanning, hands-free listening on the go
Murf AIが勝利した点： studio voiceover editing, background music, team collaboration tools
Speechify vs ウェルサイドラボ
Speechifyが勝利した点： price, consumer apps, reading accessibility for visual impairments
WellSaid Labsが勝利した点： customizable voices for brands, e-learning narration, enterprise controls
Synthesysの比較をもっと見る
Here is how Synthesys stacks up against other AI video software:
Synthesys vs シンセシア
Synthesysが勝利した点： lower entry price, 140-language voice range, AI Talking Photos
Synthesiaが優れている点： larger avatar library, polished enterprise templates, brand recognition
Synthesys vs ヘイジェン
Synthesysが勝利した点： bundled voice studio, unlimited text input, audio translation tools
HeyGenが勝利した点： faster avatar lip-sync, viral short-form features, simpler editing flow
Synthesys vs した
Synthesysが勝利した点： all-in-one studio, wider voice library, marketing-ready video output
D-IDが勝利した点： real-time talking agents, lightweight photo animation, developer API depth
Synthesys vs コロサイ
Synthesysが勝利した点： creator-friendly pricing, talking photos, broad language coverage
コロシアンの勝利： training-video templates, scenario branching, team workspace features
よくある質問
Whether you search for “Speechify vs Synthesys” or “Synthesys vs Speechify,” the answers below cover both.
Speechifyよりも優れたものは何ですか？
For pure reading, NaturalReader and ElevenLabs rival Speechify. For video, Synthesys is better. Speechify still leads on apps, accessibility, and price for everyday text to speech.
Speechifyのデメリットは何ですか？
Speechify only makes audio, not video. The free plan limits daily words and voices. Top human like voices and faster speeds sit behind the paid subscription.
Speechifyの月額料金はいくらですか？
Speechify offers a free Limited plan. The monthly plan costs $29/month. The annual plan drops the cost to $11.58/month when billed once per year.
SpeechifyはElevenLabsよりも優れていますか？
It depends. Speechify wins for reading documents, mobile apps, and accessibility. ElevenLabs makes more lifelike voices for creators and developers. Pick by your main task.
Speechifyにお金を払う価値はありますか？
Yes, if you read or listen daily. Premium unlocks natural sounding voices, faster speeds, and more languages. Casual users can stay on the free plan.
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