Open your document
Bring a supported document into RETU and keep the source close at hand.
RETUContactPrivate, focused, on-device
Your documents.
Read to you.
RETU turns documents into spoken audio so you can listen, follow along, and pick up where you left off—without sending your reading to the cloud.
Narrating locallyChapter 04
No account required
01
A calmer way to read
Listen without losing your place.
RETU is a document-to-audio reading app designed to help you listen to documents in a focused, flexible, and privacy-conscious way. It supports on-device narration workflows using open-source speech components and related libraries.
Listen on-device
Generate narration locally with downloaded speech models and voices.
Resume with context
Return to your playback position, bookmarks, and listening preferences.
RETU is designed with a privacy-first approach.
Local document processing
Documents opened in RETU are processed locally on your device unless a feature explicitly states otherwise. RETU does not require an account to use its core reading features.
Information stored on your device
RETU may store certain information locally on your device to support app functionality, including:
- Recent documents
- Playback position
- Bookmarks
- Selected voice and playback settings
- Exported audio files that you choose to create
Speech models and voices
If RETU downloads speech models or voice files, those downloads are used only to enable on-device narration features requested by the user.
Personal data
RETU Studio does not sell your personal data.
Important information
Disclaimer
The original document remains the authoritative source.
01RETU converts source text into audio using automated speech technology.
02Narration, highlighting, bookmarks, and exported audio may contain errors, omissions, mispronunciations, timing mismatches, formatting-related changes, or synchronization issues. The original source document remains the authoritative version.
03RETU is provided to assist with reading and listening convenience. It should not be relied on as the sole source of truth for legal, medical, financial, academic, compliance, safety-critical, or other high-stakes purposes. Important information should always be verified against the original document.
04To the fullest extent permitted by applicable law, RETU Studio makes no warranty that generated narration, highlighting, bookmarks, or exported audio will be accurate, complete, reliable, uninterrupted, or fit for any particular purpose.
05To the fullest extent permitted by applicable law, RETU Studio is not responsible for loss or damage arising from reliance on generated narration, synchronized highlighting, bookmarks, or exported audio.
06If you use RETU for important content, review the original document before acting on any narrated or exported output.
Questions or support