# 倒数日 · Days Matter vs 格式转换

倒数日 · Days Matter and 格式转换 both sit at 4.8 stars, but that hides the real split: 88% of 倒数日 · Days Matter's written reviews are positive against 38% of 格式转换's. 倒数日 · Days Matter also leads on ratings volume (8.3K vs 3) and update cadence (every 3 weeks vs every 4 months). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. 倒数日 · Days Matter sells 10 in-app purchases, starting at $0.49 per month and 格式转换 sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

格式转换 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 3, so its average is the more settled of the two. Written reviews complicate that: 88% of 倒数日 · Days Matter's written reviews are positive against 38% of 格式转换's, so the app with the better star average is not the one people write more warmly about.

倒数日 · Days Matter ships an update every 3 weeks, 格式转换 every 4 months. Both last shipped on November 13, 2026.

## The numbers

| Metric | 倒数日 · Days Matter | 格式转换 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (8.3K ratings)](https://appshunter.io/ios/app/days-matter/id406170251/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/pdf/id1592081958/reviews)** |
| Number of ratings | **8.3K** | 3 |
| Positive reviews | **87.5% of reviews** | 37.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 280 MB | 81 MB |
| Requires iOS | 15.0 | 15 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iDaily Corp.](https://appshunter.io/developer/364264742) | [强 孙](https://appshunter.io/developer/1469862200) |

## What reviewers say

### 倒数日 · Days Matter

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

Track important dates, from personal milestones to financial deadlines. Offers extensive date range support, cloud sync, and customizable event backgrounds. Includes features like historical date lookups and a date calculator.

**Highlights:** Extensive date range support (year 1 to 9999), Cloud synchronization for data backup, Lunar calendar support, Notification Center widgets and Apple Watch app, Customizable event backgrounds, Password protection with Face ID/Touch ID

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

**In-app purchases (10)**

| 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 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


### 格式转换

[App page](https://appshunter.io/ios/app/pdf/id1592081958)

This app offers a comprehensive suite of tools for converting and editing various file types, including audio, video, images, and PDF documents. It supports batch processing, lossless encoding, and watermark-free exports for a seamless user experience.

**Highlights:** Audio conversion and editing, Video conversion and editing, Image conversion and editing, PDF document conversion, Batch processing, Lossless encoding, Watermark-free export

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周费 | $0.99 | one-time |
| 月费 | $1.99 | one-time |
| 季费 | $3.99 | one-time |
| 年费 | $6.99 | one-time |


## 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 格式转换 free?

格式转换 is free to download, with in-app purchases available.

### Which has better reviews, 倒数日 · Days Matter or 格式转换?

格式转换 is rated higher. 倒数日 · Days Matter averages 4.8 out of 5 from 8.3K ratings, while 格式转换 averages 5.0 from 3 ratings.

### Do 倒数日 · Days Matter or 格式转换 have ads?

Both 倒数日 · Days Matter and 格式转换 show ads.

### Which is updated more often, 倒数日 · Days Matter or 格式转换?

倒数日 · Days Matter ships an update every 3 weeks, and 格式转换 every 4 months. Most recently, 倒数日 · Days Matter was updated on November 13, 2026 and 格式转换 on November 13, 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.*