# 倒数日 · Days Matter vs 线岛

The clearest difference is ads: 线岛 at none against 倒数日 · Days Matter's shown. 线岛 also leads on update cadence (every 9 days vs monthly) and review sentiment (100% vs 87%). 倒数日 · Days Matter's advantage is ratings volume (8.3K vs 1). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. 倒数日 · Days Matter sells 11 in-app purchases, starting at $0.49 per month and 线岛 sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

线岛 holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: 倒数日 · Days Matter has 8.3K ratings behind it against 1, 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 100% of 线岛's.

倒数日 · Days Matter ships an update monthly, 线岛 every 9 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 倒数日 · Days Matter | 线岛 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (8.3K ratings)](https://appshunter.io/ios/app/days-matter/id406170251/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6743368245/reviews)** |
| Number of ratings | **8.3K** | 1 |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 263 MB | 14 MB |
| Requires iOS | **15.0** | 16 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iDaily Corp.](https://appshunter.io/developer/364264742) | [强 李](https://appshunter.io/developer/1449686959) |

## What reviewers say

### 倒数日 · Days Matter

[App page](https://appshunter.io/ios/app/days-matter/id406170251)

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.

**Highlights:** Countdown/count up to any date, Cloud synchronization, Lunar calendar support, Customizable categories, Historical dates, Date calculator, Password protection

**Features:** macOS Compatibility, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 倒数日 Pro · 月度会员 | $0.49 | per month |
| 倒数日相册 1000 张 | $0.99 | per month |
| 倒数日相册 2000 张 | $1.99 | per month |
| 倒数日相册 5000 张 | $3.99 | per month |
| 倒数日相册 10000 张 | $6.99 | per month |
| 倒数日重置密码 | $0.99 | one-time |
| メールアドレスカード | $2.99 | one-time |
| 咖啡 | $2.99 | one-time |
| Days Matter Pro | $4.99 | one-time |
| 银币 | $5.99 | one-time |
| 金币 | $14.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 📆 Helps remember important dates
- 🗓️ Useful for tracking events and milestones
- 🧠 Aids in recalling memories
- 🔍 Provides historical information

**What reviewers complain about**

- 💰 Some features require paid subscription
- 🌐 Lack of English language support
- 🔧 Occasional bugs and crashes
- 🔍 Cluttered interface for some users
- ⚠️ Unexpected changes to login/sync methods

**Reported bugs**

- Incorrect date display in widget
- Inconsistent behavior when changing phones
- Sync issues causing data loss
- Unexpected app behavior after updates

**Requested features**

- Add English language option
- Improve widget customization
- Provide more theme/background options
- Allow manual date entry format customization
- Implement sync with other calendar apps


### 线岛

[App page](https://appshunter.io/ios/app/id6743368245)

This app helps crafters meticulously track and manage their yarn inventory. Record yarn details with images, update usage, and gain an overview of your collection's quantity, cost, and remaining material. Offers advanced features for subscribers.

**Highlights:** Yarn information recording with images, Usage tracking and deletion, Collection overview (quantity, cost, remaining), Card-style waterfall display of yarn, Customizable tags and filters, Unlimited yarn data addition

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 线岛专业版月度订阅 | $0.99 | per month |
| 线岛专业版年度订阅 | $5.99 | per year |


## Frequently asked questions

### Is 倒数日 · Days Matter free?

倒数日 · Days Matter is free to download, with in-app purchases available.

### Is 线岛 free?

线岛 is free to download, with in-app purchases available.

### Which has better reviews, 倒数日 · Days Matter or 线岛?

线岛 is rated higher. 倒数日 · Days Matter averages 4.8 out of 5 from 8.3K ratings, while 线岛 averages 5.0 from 1 ratings.

### Do 倒数日 · Days Matter or 线岛 have ads?

倒数日 · Days Matter shows ads; 线岛 does not.

### Which is updated more often, 倒数日 · Days Matter or 线岛?

倒数日 · Days Matter ships an update monthly, and 线岛 every 9 days. Most recently, 倒数日 · Days Matter was updated on October 29, 2026 and 线岛 on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*