Nikki - Microblog Diary
A diary that actually sticks
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Lighter than a diary.
Jot it down the moment it happens, tweet-style. Your days add up on their own—your lifelog.
Nikki is a lifelog / diary app that lets you capture "right now" with the speed of social media. No need to brace yourself and write at the end of the day. Something you noticed, what you ate, where you went—just jot a quick line when it comes to mind. Because it's easy, you'll actually keep it up.
■ Great for people who
- Start a diary but quit after a few days
- Want to capture daily life casually, like on X / SNS
- Want to log photos, places, and tags too
- Want to look back and enjoy past memories
- Use multiple devices (phone + PC)
■ Features (free plan)
- Social-style timeline UI
- Text + photo posts
- Places (search via Google Places)
- Tags
- Calendar & "Trail" for looking back (Media / Map / Tags, plus category rankings for your favorite places)
- Reply & quote to connect your own posts like a thread
- Dark mode / 11 languages
■ Plus (¥680/mo or ¥5,800/yr)
- Video posts (up to 5 min, 20/month)
- Unlimited photos and places
- Ad-free
- Offline posting (auto-sync)
- Data export (coming soon)
■ Notion sync (power feature)
Your entries can auto-sync to Notion—tags, dates, places, and photos included. Perfect for long-term storage and organization.
Built solo, updated daily. Feedback, ideas, and bug reports are all welcome.
Support: nikki@fairvalue.jp
Privacy Policy: https://nikki-notion.pages.dev/privacy.html
Terms of Use: https://nikki-notion.pages.dev/terms.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
A refreshed design that's easier on the eyes and smoother to use.
- Redesigned timeline (entry cards, date headers, menus)
- Faster photo loading and smoother scrolling
- Fixed an issue where today's entries could be missing from the calendar
- Improved place search (nearby search, sorted by distance)
- Easier photo cropping and rotation
- Added streak counter for consecutive days
- Stability improvements and bug fixes
The developer, TARO KATSUKI, 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 Linked to You
The following data may be collected and linked to your identity:
- Location
- Contact Info
- User Content
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- TARO KATSUKI
- Size
- 48.2 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Nikki Plus Yearly $44.99
- Nikki Plus Monthly $4.99
- Copyright
- © 2026 fairvalue