Muse Spark AI: Chat & Voice

A free, no-registration, multi-language AI chatbot app.

Ask anything, get a clear answer, then have it read out loud in a
voice you actually want to listen to.

Muse Spark is an AI assistant with a proper text-to-speech studio
built in. Ask a question, attach a PDF or a photo, pick who you
want to talk to, and listen to the reply while you do something
else. Everything you ask is saved on your device, and you can take
it all with you whenever you like.


ASK ANYTHING
Explanations, code, plans, translations, first drafts, second
opinions. Replies come back formatted the way they should be —
headings, lists, quotes, and code blocks with syntax highlighting
and a one-tap copy button. Answers stream in as they are written,
and suggested follow-up questions appear underneath so you can keep
pulling on a thread without typing.

Choose the model that fits the question: something fast and light
for a quick lookup, something deeper for a problem worth thinking
about, or one that can read images and code.

48 ROLES AND CHARACTERS
Change who is answering, not just what you ask. A patient tutor, an
expert programmer, a chef, a data analyst, a supportive friend, a
comedian, a dungeon master, a meditation guide. Or talk to
Einstein, Marie Curie, Socrates, Shakespeare, Jane Austen,
Cleopatra and Sherlock Holmes.

Write your own, too: give it a name, a picture and a system prompt,
and it sits alongside the rest.

Six tones sit on top of any role — balanced, friendly,
professional, concise, playful or detailed — so you can keep the
same expert and just change how they talk.

NATURAL TEXT TO SPEECH
Paste up to 1500 characters into the Voice studio and hear it back
in one of 55 natural voices: American and British English, Spanish,
French, Italian, Hindi, Brazilian Portuguese, Japanese and Mandarin
Chinese. Adjust the speed, play it back, download the audio, and
find every narration you have made in your recent list.

Any chat reply can be read aloud too — one tap on the message.

BRING YOUR OWN SOURCES
Attach a photo and ask what is in it. Attach a PDF, text, Markdown
or CSV file and ask questions about what is inside. Paste a link
and chat with the webpage. The answer comes from the thing you
gave it.

YOUR LIBRARY, YOUR FILES
Every conversation is saved automatically and stays on your device.
Reopen any of them, or export a single chat to Markdown or PDF.
Back up the lot to one file whenever you want it somewhere safe.

Any reply can be opened full screen in a distraction-free reader,
listened to, and exported to PDF, Markdown or plain text.

Save the prompts you keep reusing and drop them into any
conversation with one tap.

MAKE IT YOURS
19 themes, ten light and nine dark — Linen, Solar, Sakura, Meadow,
Prism Dark, Nebula, Aurora, Dracula, Nord and more. Six interface
fonts and three coding fonts. Streaming replies, sound effects and
accent stripes all switch on and off. The whole app speaks 12
languages and will follow your system language if you let it.

FREE AND PAID
Start free with a daily allowance of messages and the full set of
free roles, themes, fonts and languages. Upgrade for unlimited
messages, image questions, cloud narration and more models. The top
tier adds documents, webpages and your own custom characters.


REPORTING
Answers come from AI models and can be wrong, so check anything
that matters. If something comes back that should not have, there
is a report button on every reply, in the reader, and in your
account settings.

Ask anything. Hear it answer.