# Oneuldo - One Line a Day — One mood, one line. That's it.

> One mood, one line. That's it. (iPhone/iPad app by BONG GEUN KIM.)

- Source: https://appshunter.io/ios/app/oneuldo-one-line-a-day/id6816432597 (this page in markdown: same URL + `.md`)
- Developer: [BONG GEUN KIM](https://appshunter.io/developer/6810281776)
- Category: Lifestyle, Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, Korean
- Released: 2026-09-30
- Data updated: 2026-10-01

## What is Oneuldo?

One line a day is enough.

Oneuldo is a diary app that keeps each day as one mood emoji and one line (100 characters).
Nothing long to write, so it actually continues.

■ Today
Pick one of five moods and write a line. Past days can be filled in later.

■ Mood calendar
The calendar fills with the color of each day's mood — a whole month at a glance.

■ Monthly recap card
Days recorded, most frequent mood, best day, mood distribution and longest streak, rendered as a card you can share as an image.

■ Streak
Counts consecutive days. Missing one is never scolded.

■ Reminder and lock
One reminder a day at the time you choose. Lock the diary with Face ID or your device passcode.

■ Export
Export everything as text or CSV.

■ No account, no server
No sign-in. Every entry stays on this device. No ads, no analytics.
Korean and English.

## Is Oneuldo safe?

Not enough ratings yet to assess Oneuldo.

## Is Oneuldo legit?

Oneuldo - One Line a Day has limited verification signals. The AppsHunter Legitimacy Score for Oneuldo is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-09-30

No release notes.

## More apps by BONG GEUN KIM

- [Hueday - 오늘의 무드](https://appshunter.io/ios/app/hueday/id6810281774)
- [Kamusta - Learn Korean](https://appshunter.io/ios/app/kamusta-learn-korean/id6816351542)
- [Nona - Trip Expense Splitter](https://appshunter.io/ios/app/nona-trip-expense-splitter/id6816402139)
- [Teumsae Note - Scan Voice Memo](https://appshunter.io/ios/app/teumsae-note-scan-voice-memo/id6816445238)
- [Pitapat - 3-Min Games for Two](https://appshunter.io/ios/app/pitapat-3-min-games-for-two/id6816445508)

All apps by BONG GEUN KIM: https://appshunter.io/developer/6810281776

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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 2026-10-01.*