# 1DayS-倒数纪念日提醒

> Anniversary and important date reminder app with customizable widgets and cloud sync. (iPhone/iPad app by KAIROS Company Limited.)

- Source: https://appshunter.io/ios/app/1days/id1668529103 (this page in markdown: same URL + `.md`)
- Developer: [KAIROS Company Limited](https://appshunter.io/developer/1495144014)
- Category: Utilities, Productivity
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 102 MB
- Languages: Chinese
- Released: 2023-02-09
- Data updated: 2026-06-02
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/1days/id1668529103/reviews.md

## What is 1DayS?

“1DayS”是你的首选纪念日管理工具，让你不再错过任何重要日子。不管是过去还是未来，亦或是当下，无论是生日、纪念日，还是节日、还款日，亦或是考试倒计时、发工资倒计时，都会精确为您记录和提醒。

亮点功能
l 支持公历/农历
l 多款小组件灵活自定义
l 云端同步，重要日子不怕丢失
l 多款风景背景供选择
l 公共节日一键添加
l 日子长按排序，随心而定
l 浅色深色两套UI主题

隐私声明：  https://www.kairusi.com/1days-privacy.html

## Key features

- Track birthdays, anniversaries, holidays, deadlines
- Public and lunar calendar support
- Customizable widgets
- Cloud synchronization
- Multiple background options
- One-click public holiday addition
- Light and dark UI themes

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/1days/id1668529103/reviews.md

### 5/5 — Perfect

*2023-11-02*

很好用

### 5/5 — 好评

*2023-03-22*

凯如斯的作品，一如既往的好用

### 5/5 — 好评

*2023-03-22*

很棒，凯如斯的作品。期待了好久。

## Frequently asked questions about 1DayS

### What is 1DayS?

1DayS is a utility app designed to help users track and remember important dates such as birthdays, anniversaries, holidays, and deadlines. It offers features like customizable widgets and cloud synchronization to ensure you never miss a significant event.

### Is 1DayS free to use?

Yes, 1DayS is completely free to download and use. The app is available at no cost to users.

### Does 1DayS have ads?

No, 1DayS does not contain advertisements. The app is ad-free, providing an uninterrupted user experience.

### What devices does 1DayS support?

1DayS is available for iPhone and iPod devices. It is designed to run on Apple's mobile operating systems.

### How often is 1DayS updated?

The latest version of 1DayS is 1.1.1, which was last updated on November 14, 2023. Updates are released periodically to improve functionality and add new features.

### What is the age rating for 1DayS?

1DayS has an age rating of 4+, making it suitable for a wide range of users. This rating indicates that the content is generally appropriate for children.

### Can I sync my important dates across devices with 1DayS?

Yes, 1DayS offers cloud synchronization, allowing you to back up and sync your important dates across different devices. This ensures your data is safe and accessible.

### Does 1DayS support both Gregorian and Lunar calendars?

Yes, 1DayS supports both the Gregorian (公历) and Lunar (农历) calendars. This flexibility allows users to track dates according to their preferred calendar system.

## Version history (last 5 releases)

### 1.1.1 — 2023-11-14

·界面细节优化

### 1.1.0 — 2023-09-15

·增加24节气
·首页增加按时间排序

### 1.0.9 — 2023-07-11

·界面细节优化

### 1.0.8 — 2023-07-06

·界面细节优化

### 1.0.7 — 2023-05-16

·界面细节优化

## Apps similar to 1DayS

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Noteday - Date Record](https://appshunter.io/ios/app/noteday-date-record/id1545736323) | 4.6 (7) | Free | Utilities |
| [Goodays](https://appshunter.io/ios/app/goodays/id6740434207) | — | Free | Utilities |
| [OneDay - Countdown Dreamdays](https://appshunter.io/ios/app/oneday-countdown-dreamdays/id1250290965) | 5.0 (4) | Free | Utilities |
| [Daycraft-Countdown & Reminder](https://appshunter.io/ios/app/daycraft-countdown-and-reminder/id6746264646) | — | Free | Utilities |
| [Birthday assistant app](https://appshunter.io/ios/app/birthday-assistant-app/id1508444645) | — | Free | Utilities |

## More apps by KAIROS Company Limited

- [1TodoS](https://appshunter.io/ios/app/1todos/id1519927147)
- [1CalendarS](https://appshunter.io/ios/app/1calendars/id1538966367)
- [1NoteS](https://appshunter.io/ios/app/1notes/id1551902709)
- [日刻](https://appshunter.io/ios/app/id1559165168)
- [1Focus](https://appshunter.io/ios/app/1focus/id1575161059)
- [1Sport](https://appshunter.io/ios/app/1sport/id1599187837)

All apps by KAIROS Company Limited: https://appshunter.io/developer/1495144014

## Related topics

[kairos company limited](https://appshunter.io/ios/topics/kairos-company-limited)

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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 2026-06-02.*