Superwhisper
Superwhisper vs Alter
These are different products that solve different problems. Superwhisper turns your speech into text. Alter transforms voices and generates speech. If you landed here looking for dictation software, Superwhisper is what you want.
How they compare
| Superwhisper | Alter | |
|---|---|---|
| Category | Speech-to-text (dictation) | Voice transformation, text-to-speech |
| Core use case | Talk, get written text | Change how a voice sounds, generate speech |
| Platforms | macOS, Windows, iOS | Windows (Mac beta for real-time only) |
| Offline mode | Full offline support | Unclear |
| Privacy | On-device, audio never leaves machine | Cloud processing for some features |
| Languages | 100+ | Multiple (voice cloning) |
| AI modes | Super Mode, Voice, Email, Message, custom | Voice morphing, voice cloning, TTS |
| Pricing | Free tier forever, Pro from $8/mo | Free tier, paid from $30/mo |
The fundamental difference
Different directions of the same pipeline
Superwhisper goes from voice to text. You speak, it writes. It runs locally on your device, supports 100+ languages, and works system-wide in any app. The AI modes can reformat your speech into polished emails, messages, or code comments.
Alter goes in the other direction. It takes existing voices or text and produces modified audio output. Think voice cloning, real-time voice changing for streams, speech-to-speech morphing. It is a production tool for audio content.
Who each product is for
Superwhisper is for people who want to type less. Developers dictating code prompts, writers drafting long-form content, anyone who thinks faster than they type. It replaces your keyboard for text input.
Alter is for audio and media professionals. Game developers who need character voices, podcasters cleaning up audio, streamers who want real-time voice effects. It is a creative tool for sound production.
What Alter does well
If you actually need voice transformation, Alter is a capable tool. Their speech-to-speech technology lets you change a voice recording to sound like a completely different person. The voice cloning feature can replicate a specific voice from a short sample. For game studios and media production teams, that is genuinely useful. It is just a completely different product category from Superwhisper.
What people say about Superwhisper
"Superwhisper delivers on the dream of an AI-native operating system. The best part: it's insanely fast and does just what you expect."
— Guillermo Rauch, CEO of Vercel
Frequently asked questions
Is Alter a voice-to-text tool?
No. Alter (Altered Studio) is a voice transformation and text-to-speech platform. It changes how voices sound or generates speech from text. It does not transcribe speech into written text. If you need dictation, Superwhisper is the tool for that.
Can Superwhisper change how my voice sounds?
No. Superwhisper is purely a speech-to-text tool. It listens to what you say and turns it into written text. It does not modify, clone, or morph your voice in any way.
Why do people compare these two products?
Probably because both involve voice and AI. Someone searching for 'alter voice to text' might expect a dictation tool and land on Alter's site instead. They are genuinely different categories of software.
Does Superwhisper work offline?
Yes. Superwhisper runs speech recognition models on your device. No internet connection needed. Your audio never leaves your machine.
Try Superwhisper free
Free tier that doesn't expire. 30-day refund if Pro isn't for you.
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