lumi. is a personal journalling tool. It lets you record voice notes, and uses AI to transcribe them, identify patterns, and produce reflective summaries — anchored to the life areas and goals you set during onboarding. The purpose is reflection, not advice.

lumi. is currently in a private testing phase. Access is by invitation only. Features may change, and in exceptional circumstances data may be reset with advance notice.

lumi. is intended for personal journalling use only and is available to users aged 18 and over only. By using lumi., you confirm you are 18 or older and agree that you will not:

• Use the app for any commercial purpose without prior written permission
• Upload content that is illegal, that infringes third-party rights, or that constitutes harassment or abuse
• Attempt to reverse-engineer, copy, or misappropriate lumi.'s AI prompts, design, or underlying systems
• Use the app in a way that knowingly misrepresents your identity or circumstances

Audio recordings must be in a supported format (mp3, mp4, m4a, wav, webm, ogg, or flac) and under 25MB per file.

lumi. is currently restricted to invited users during the private beta. Sharing your access with others is not permitted at this stage.

Many features in lumi. are powered by AI — including entry transcription, sentiment and energy scoring, life area tagging, daily questions, weekly signals, monthly summaries, pattern alerts, and the voice and writing profile. These outputs are generated by third-party AI models and are provided for reflective purposes only.

lumi. includes an automated distress detection system that runs on your journal entry transcripts before they are processed by AI. This is a keyword pattern-matching system — not clinical assessment, not AI analysis, and not human review.

It operates across three levels:

• Active tier — if explicit crisis language is detected (such as expressions of suicidal ideation or self-harm intent), AI analysis is skipped entirely for that entry and hardcoded crisis support resources are shown.
• Concern tier — if explicit hopelessness is detected (without self-harm language), AI analysis runs normally but a warm check-in and soft signposting to support resources is shown.
• Passive tier — if general distress language is detected and the AI also independently rates the entry as heavy, a check-in prompt is shown offering access to support resources.

Nothing in lumi. — including AI-generated content, pattern alerts, reflective questions, summaries, or any other feature — constitutes professional advice of any kind. This includes mental health advice, medical advice, psychological guidance, legal advice, and financial advice.

lumi. is a private reflection tool operated by Sarah-Jane Barton trading as lumi. lumi. is not a mental health professional, doctor, counsellor, solicitor, or financial adviser. If you need professional support in any of these areas, please seek it from a qualified professional.

lumi. relies on the following third-party services to function. By using lumi., you acknowledge that your data will be processed by these services as described in the Privacy Policy, and you agree to comply with their respective terms of use.

lumi. is provided as-is, during a private testing phase, without any guarantee of availability, accuracy, or continuity. lumi. makes no warranty — express or implied — about the service's fitness for any particular purpose.

lumi. depends on third-party APIs, including Anthropic and OpenAI. If either service is unavailable, entry processing will fail. Entry processing is asynchronous — there may be a delay between submitting a recording and the entry being fully processed. Entries may temporarily show a processing or error status.

If transcription fails, your audio file is retained temporarily to allow a retry. If the retry also fails or the server restarts before retry, the audio file may not be recoverable.

Your journal entries belong to you. lumi. does not claim ownership over anything you write, record, or reflect on through the app.

AI-generated content — including summaries, signals, questions, pattern alerts, and the voice and writing profile — is derived from your own entries and is provided to you for personal use.

By using lumi., you grant lumi. a limited licence to process your content as necessary to provide the service — including transmitting it to the third-party services listed above. This licence does not extend to any other use.

You can delete your account at any time from the Settings page. Account deletion is immediate and permanent — all entries, summaries, sessions, goals, intentions, life areas, voice profile, and account data are removed and cannot be recovered. Your Clerk account is also deleted at the same time.

The most recent Google Drive backup(s) may persist for up to 7 days after deletion before being automatically pruned. If you have concerns about this, contact lumi. before deleting your account.

There is no recovery after deletion. Please be certain before proceeding.

lumi. is in active development. Features may be added, changed, or removed. In exceptional circumstances during the beta period, data may be reset — you will be notified in advance if this is necessary.

These terms may also change. If they change in a material way, you will be notified within the app. The date at the top of this page reflects the most recent update. Continued use of lumi. after a change to the terms constitutes acceptance of those changes.

These terms are governed by the laws of England and Wales. Any disputes arising from your use of lumi. will be subject to the exclusive jurisdiction of the courts of England and Wales.