AI Emotional Analysis
Your emotions, reflected back with care
Most emotion-tracking tools reduce your inner life to a number on a scale. Kokoro Nikki takes a different approach: our AI reads what you write and gently surfaces patterns — without scoring you, ranking your day, or telling you how to feel.
What the analysis actually does
After you save a journal entry, Kokoro Nikki analyzes the emotional content using a large language model trained to recognize nuanced feeling states — not just "happy" or "sad," but the texture of tiredness behind gratitude, or the relief mixed into grief. The result is a set of emotional tags and a mood arc you can browse over days and weeks.

Warm, not clinical
We deliberately avoided the clinical vocabulary of most wellness apps. You won't see scores like "62% anxious." Instead, the app surfaces observations in the spirit of a thoughtful friend: patterns you might not have noticed, connections between what you wrote on Tuesday and how you felt on Friday.
Privacy by design
Journal text sent for AI analysis is processed securely and never used to train external models. You can disable AI analysis entirely in Settings — the rest of the app works exactly the same. Voice is a separate path: your phone's built-in speech recognition turns speech into text, and depending on your device Apple or Google may process the audio to do this. The recording itself is never uploaded to us and stays on your phone. A transcription is never analysed by AI unless you explicitly save it as an entry.
The kintsugi timeline
Emotional patterns over time are visualized in the Kintsugi Timeline — your journey rendered as golden-repaired cracks in pottery. High-emotion days, quiet days, turning points: all visible at a glance, framed not as failures or successes but as the texture of a life being lived.
Frequently Asked Questions
Can I turn off AI analysis?
Yes. Go to Settings → AI & Analysis and toggle it off. The rest of the app — entries, voice, timeline, themes — continues working normally.
Is my journal text sent to a server?
Only the text of entries you save is sent for analysis, and only when AI analysis is enabled. The recording is never uploaded to us: your phone's built-in speech recognition turns it into text, and depending on your device Apple or Google may process the audio to do that.
What language models power the analysis?
Kokoro Nikki uses OpenAI's API for emotional analysis. Only journal text and your language/style preferences from onboarding are transmitted — no personal identifiers.
Start writing the story of your heart today.
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