# LYLU: AI Diary & Mood Tracker

> LYLU: AI Diary & Mood Tracker (iPhone/iPad app by Emil Herzberg.)

- Source: https://appshunter.io/ios/app/lylu-ai-diary-and-mood-tracker/id6757604559 (this page in markdown: same URL + `.md`)
- Developer: [Emil Herzberg](https://appshunter.io/developer/1867788895)
- Category: Lifestyle, Utilities
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 15.1 · 41 MB
- Languages: American English
- Released: 2026-02-12
- Data updated: 2026-06-15
- User reviews in markdown: https://appshunter.io/ios/app/lylu-ai-diary-and-mood-tracker/id6757604559/reviews.md

## What is LYLU?

Speak instead of typing. LYLU is a voice-first diary that transcribes your daily audio notes with AI and turns them into clear emotion graphs, so you can actually see how you’ve been feeling over time.

Record a short check-in, get the transcript, and LYLU will analyze the emotional tone of your entry across multiple dimensions such as sad–happy, anxious–calm, ashamed–proud, overwhelmed–in control, and more. Your days are mapped into a calendar and visualized in simple, beautiful charts for days, weeks, months, and the full year.

How LYLU works:

Record – Hold the mic and talk about your day. No titles or manual sorting. Each recording is saved under today’s date.

Transcribe – Your audio becomes fully editable text using modern speech-to-text models. Edit, delete, or copy your diary entries anytime.

Track your emotions – Every entry is analyzed for sentiment. LYLU aggregates your recordings per day and shows how your emotional patterns evolve.

What you can view:
• Emotion pairs for a detailed mood profile (sad–happy, anxious–calm, ashamed–proud, overwhelmed–in control, etc.)
• Polarity and arousal map, from negative to positive and low-energy to high-energy
• Multiple graph types: simple averages, daily variations and spikes, emotional changes over long periods
• Calendar-based diary showing which days include recordings

Free vs Pro:

LYLU (Free):
• Record and transcribe short voice notes (up to 120 seconds each)
• Daily transcription limit of 6 minutes
• Full access to emotion analysis and graphs
• Ad-supported

LYLU Pro (subscription):
• Unlimited transcriptions
• Record up to 10 minutes per entry
• Faster, higher-quality AI processing
• No ads
• Designed for deeper reflection and long-form audio diaries

For people who:
• Prefer speaking instead of typing journals
• Want an easy, tech-assisted emotional check-in
• Enjoy seeing their mood trends in visual graphs

LYLU is made for self-reflection and emotional awareness. It is not medical or therapeutic advice and does not replace professional mental health care.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://ai-diary.herzberg-dynamics.de/legal.html#pp
Terms & Conditions: https://ai-diary.herzberg-dynamics.de/legal.html#tc

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| LYLU Pro - Monthly | $6.99 | per month |



## Version history (last 3 releases)

### 1.0.2 — 2026-02-24

-Improved subscription handling and stability improvements.

### 1.0.1 — 2026-02-20

- Added initial loading screen
 - UX improvement: Screen now scrolls to transcription after successful

### 1.0 — 2026-02-13

No release notes.

## More apps by Emil Herzberg

- [Cosmic Trap](https://appshunter.io/ios/app/cosmic-trap/id6757701722)

All apps by Emil Herzberg: https://appshunter.io/developer/1867788895

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-15.*