倒数日 · Days Matter
by iDaily Corp.
- Productivity
- Free
- Rating
- 4.8
- 2.7M ratings
- Top 2%among 161 Productivity apps
- Last update
- Sep 17, 2026
- Version 5.3.1
- Size
- 271 MB
- Category
- Productivity
- Tracked since
- Oct 9, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
-=App Store 中国免费排行榜 Top 1=-
「倒数日 · Days Matter」是一个帮你记录生活中重要日子的小工具，例如:恋人生日还有多少天？还信用卡还有多少天？发工资还有多少天？宝宝出生已经多少天？距离世界末日还有多少天……
=主要功能=
- 万年支持：支持从公元元年 1 月 1 日到公元 9999 年 12 月 31 日的倒数/正数日期，你可以计算诸如美国独立多少日、与女朋友交往多少日、宝宝出生多少日……
- iCity 云端同步：保护你的重要资料
- 农历支持：支持从 1901 年至 2049 年的农历日期
- 通知中心挂件、Apple Watch & iMessage App
- 三种默认分类：纪念日、工作、生活，支持自定义更多分类
- 历史上的今天与明天
- 日期计算器
- 自定义事件背景
- 高级功能：密码保护，通过 Face ID / Touch ID 解锁
欢迎反馈你的需求给我们 ^_^
Clover 四叶新媒体荣誉出品
- ———
关于程序内提供的「按月订阅」功能：
您可以在程序内使用 iTunes 自动续订功能获取会员专属功能，我们提供「每月 CNY ¥3」套餐。
确认购买后，将会从您的 iTunes 帐户中收取费用。您可以在每个周期结束至少 24 小时前取消下个周期的订阅，每个周期结束 24 小时内将会自动续订，已订阅的周期将无法取消。
隐私保护政策：https://clover.ly/privacy
用户使用协议：https://m.icity.ly/tos
What’s new
Release notes for the latest version, as written by the developer.
- 新功能：「时空徽章」上线，从现在开始收集和解锁多达34个隐藏徽章，让你的倒数日事件更有趣
- 新功能：「透明相机」新增「贴纸」，即刻探索爱心、幸运星、四叶草，满足你的所有喜欢
- 新改进：「透明相机」支持 iOS 26 以下系统
- 新改进：「倒数日历」支持「事件图标」
- 新素材：「倒数本封面」x 4
Rank history
Daily position in the China charts. #1 is at the top.
- Best rank
- #7
- Current rank
- #10
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
52/100
Not flagged as small & simple
- Developer size0% · 25
Developer: 18 apps on the charts
- Audience size– · 20
No data, weight redistributed
- App size25% · 10
Size: 271 MB
- Price model80% · 15
Price model: free with in-app purchases
- Demand proof90% · 30
Best rank #7, 13 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 5.3.1LatestReleased Sep 17, 2026