倒数日 · Days Matter vs XDYou
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
倒数日 · Days Matter
This app helps you track important dates, from birthdays and anniversaries to deadlines and personal milestones. It offers extensive date range support, cloud synchronization, and customizable categories to keep your memories and tasks organized. Features include historical date lookups and a built-in calculator.
- Countdown/count up to any date
- Cloud synchronization
- Lunar calendar support
- Customizable categories
- Historical dates
- Date calculator
- Password protection
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-=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
XDYou
An open-source personal data assistant designed for XDU students. It helps manage academic schedules, view grades, track library books, monitor dorm electricity, and access various school-related tools and information.
- View classtable and exam arrangements
- Track sports data and scores
- Monitor dorm electricity balance
- Calculate GPA and average scores
- Manage library book due dates
- Check cafeteria bills and payment codes
- Find empty classrooms
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【Please contact superbart_chen@qq.com for development, this account is not owned by the developer himself.】 XDYou is an open-source personal data assistant for XDU students. Based on the "Traintime PDA" codebase. - Both undergraduates and postgraduates are supported. - View classtable with exam arrangement and experiment arrangement, also set your idol as the background. - View sport related data: sport class detail and test score. - Check your dorm's electricity balance and check your historical electricity usage. - View your grade, easily calculate GPA and average score by choosing the subjects. - View the exam schedule. - View the due time of the borrowed books and query the details of the books in the library. - View the bill you spent in the cafeteria, use the payment code if your card have money. - Empty classroom check. - Physics experiment schedule check and output it to iCalendar. - School forum Ruisi support. - Schoolnet Query. - Attendance Query. - Homepage arrangement notice widget. - i18n support with Traditional Chinese and English. - iLife789 support - Notice before class. If you got some idea about it, contact me freely.
Screenshots
Verdict
The clearest difference is rating: 倒数日 · Days Matter at 4.8 against XDYou's 4.0. 倒数日 · Days Matter also leads on ratings volume (8.3K vs 6) and review sentiment (87% vs 75%). XDYou's advantage is in-app purchases (none vs 11) and ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. 倒数日 · Days Matter sells 11 in-app purchases, starting at $0.49 per month. XDYou asks for nothing beyond the download.
倒数日 · Days Matter holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: 倒数日 · Days Matter has 8.3K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 87% of 倒数日 · Days Matter's written reviews are positive against 75% of XDYou's.
倒数日 · Days Matter ships an update monthly, XDYou every 5 weeks. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.
| Parameter | 倒数日 · Days Matter | XDYou |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (8.3K ratings) — better | 4.0 (6 ratings) |
| Positive reviews | 87.5% of reviews — better | 75.0% of reviews |
| Number of ratings | 8.3K — better | 6 |
| Update frequency | Monthly — better | Every 5 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 263 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | iDaily Corp. | 文彪 赵 |
Customer experience
倒数日 · Days Matter
XDYou
Bugs and requests
倒数日 · Days Matter
Reported bugs
4 issues- Incorrect date display in widget
- Inconsistent behavior when changing phones
- Sync issues causing data loss
- Unexpected app behavior after updates
Requested features
5 requests- Add English language option
- Improve widget customization
- Provide more theme/background options
- Allow manual date entry format customization
- Implement sync with other calendar apps
XDYou
Not enough reviews yet to summarise bugs or requests.
In-app purchases
倒数日 · Days Matter
- 倒数日 Pro · 月度会员7 Days trial$0.491 Month
- 倒数日相册 1000 张$0.991 Month
- 倒数日相册 2000 张$1.991 Month
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- 倒数日相册 5000 张$3.991 Month
- 倒数日相册 10000 张$6.991 Month
- 倒数日重置密码$0.99
- メールアドレスカード$2.99
- 咖啡$2.99
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- Days Matter Pro$4.99
- 银币$5.99
- 金币$14.99
XDYou
No in-app purchases
