Kokoro Nikki: Journal & Diary

Private mood notes & self care

Only for iPhone

Free · In‑App Purchases

iPhone

Your entries are stored on your device. The AI reads what you wrote. No sign-up, no password, no form. Your journal is never sold and never used to train AI models. Speak or write what's on your mind. Kokoro Nikki turns it into something more: a visual map of your emotions, a kintsugi timeline that honors every crack and every repair, an interior landscape that grows with you. No account. No streaks. No guilt. WHY KOKORO NIKKI Whether you're new to journaling or have kept a diary for years, Kokoro Nikki gives you a gentle, judgment-free space to capture what matters. On the days you have time, and the days you don't. WHAT IT DOES • A home you arrange yourself: turn blocks on and off, and put them in the order you want • Voice journaling: speak and the app turns it into text • AI emotion analysis: notice the feelings behind your words • Thought threads: answer an entry from months ago, and read both together • Interior Landscape: a watercolor that emerges from what you write • Kintsugi timeline: your whole story, cracks and all • Emotional patterns: how your mood moves over time • Daily reflection prompts: questions to sit with, not tasks to complete • Haiku mode: a day in 5-7-5 • Seasonal themes: the app moves with sakura, summer, autumn leaves and winter • App lock with Face ID, Touch ID or your iPhone passcode • Write by voice in up to 25 languages, independent of the app's interface language • Your entries are stored on your device OPEN IT AND WRITE No sign-up, no password, no form. I do not ask for your email. A QUIET RITUAL Most journals ask you to perform. Kokoro Nikki asks you to notice. Speak or write, then let your words become a landscape, a line of gold, a reading of how you've been. The entry is the seed; what comes after is the garden. YOUR PRIVACY, WITHOUT THE FINE PRINT I would rather be exact than sound good: • Your entries are stored on your device. • The audio of your recordings is never uploaded to a server I run. • Voice transcription tries your iPhone's local recognizer first. If that does not work, Apple's speech service completes it, and in that case the audio leaves the device to become text. • Emotion analysis is optional. It sends the entry's text, never the audio, to a secure service that returns the result. You can decline it and keep writing. • Your journal is never sold and never used to train AI models. FREE TRIAL AND SUBSCRIPTION 7 days with everything included. After that a subscription is needed to write new entries, but your diary does not go anywhere: everything you wrote stays readable, and so does what the app read in it, and you can export all of it whenever you want, as a Markdown file that carries your data in JSON. The amount and the renewal date are shown in full before you pay, with no extra tap. If you take the year, a notification thirty days before it renews tells you the date, the amount and how to cancel. No surprise charges. ——— Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://kokoro-nikki.com/terms Privacy Policy: https://kokoro-nikki.com/privacy

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Writing stays on the screen now. Until this version, once what you had written grew taller than the space above the keyboard, pressing return gave you a line you could not see. The line was there, and it was saved with everything else. The page underneath it simply never moved, so you carried on writing into the part of the screen the keyboard was covering, and the only way to read your own sentence back was to put the keyboard away. It moves now. When you start an entry, and when you open an old one to change something. It moves only when you are writing at the end, which is the case where a new line can fall out of sight. If you go back into the middle of an entry to correct a word, the page stays where you left it: nothing is more irritating than a screen that jumps while you are fixing something small. If you subscribe, the screen behind the gold row in Settings is different too. It used to say Premium Member, which told you nothing you did not already know. It now says thank you, and it keeps the part that was useful: which plan you are on, what it costs, and the date it renews or ends. When the store does not tell us one of those, that line is left out rather than filled with a guess. You will find the writing change simply by writing. The other one is in Settings, in the same gold row. Nothing else moved. Your entries, your home and the blocks you arranged on it are exactly where you left them. ——— Saturday, 19 September 2026 It is early on a Saturday. There was a holiday here on Wednesday, so the week came up short, and a short week turns out to be a good one for small things: I spent what was left of it getting a little further with the app, and fixing the faults I kept running into myself. Most of what is above came out of that. None of it is a new feature, and I am content with that. Writing that disappears under the keyboard is not a feature that is missing. It is the app failing at the one thing it exists to do. Thank you for reading this, and for using it. M

The developer, Moreno Preto, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Contact Info
    • User Content
    • Identifiers
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
  • Moreno Preto
Size
  • 115.7 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
Languages
English and 2 more
  • English, Japanese, Spanish
Age Rating
13+
In-App Purchases
Yes
  • Seasonal Journey $9.99
  • Annual Reflection $49.99
  • Monthly $7.99
Copyright
  • © 2026 Moreno Preto