Sediment
What settles, stays.
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
You don't have to write well. Leave one line — that's the first fragment. Short notes settle into the grain of a week, the shape of a month, the story of a year.
Short lines settle into the grain of a week, the shape of a month, the story of a year. Sediment is a quiet archive built for stacking, not writing.
— You don't have to write well
One line is enough. So is one photo. Don't arrange your thoughts. Leave them as they come.
— Time does the sorting
After seven days, your first weekly layer is woven. Four weeks make a monthly. Then quarterly, then yearly. Scattered fragments find their place.
— AI traces the grain
Recurring currents, moments of change, words appearing for the first time — Google Gemini AI points them out. You spend less time looking back. Sediment is not a substitute for medical or psychological care; it offers observation only.
— Start anonymous
No email, no name asked. Like it? Link an Apple, Google, or email account later. Your fragments come along.
— It's yours
Your fragments belong to you. We just hold them for a while. Export or erase everything anytime. No ads, no tracking, no data sales.
Features
• Text + photo fragments (short, often)
• Today timeline + streak counter
• AI Chronicles — auto-generated weekly / monthly / quarterly / yearly layers
• AI-assisted one-liner — for days when words won’t come
• Korean, English, and Japanese
50 credits per month are refilled automatically, free. Sediment Pro unlocks unlimited weaving for those who write more.
What settles, stays.
Terms of Use: https://docs.dongne.dev/sediment/legal/en/terms.html
Privacy Policy: https://docs.dongne.dev/sediment/legal/en/privacy.html
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Sediment 1.2 — for days when words won't come.
When your heart feels heavy and you can't write a single line, get AI's help to put it down as one line.
• A 3×3 emotion grid maps how you feel right now
• A short fragment is all you need — AI renders it into a line
• Refine the result before saving
• No mic, no upload — just taps
Also:
• Password reset + add password to Google/Apple accounts
• Small UX polish
The developer, Sangwoo Cho, 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:
- 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:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Size
- 35.2 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.
- iPhone
- Languages
English and 4 more
- English, German, Japanese, Korean, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Sediment Pro Annual 99,99 zł
- Sediment Pro Monthly 14,99 zł
- Provider
Sangwoo Cho
- Sangwoo Cho has identified itself as a trader for this app and confirmed that this product or service complies with European Union law.
- Address
South Korea
Gyeonggi-do
Yongin-si
107, Manhyeon-ro, Suji-gu
701-1205
16930 - Phone Number
+82 1034454048 - Email
mrbigcho@gmail.com
- Copyright
- © 2026 DongNe