# 倒数日 · Days Matter vs 66铃声

The clearest difference is rating: 倒数日 · Days Matter at 4.8 against 66铃声's 4.3. 倒数日 · Days Matter also leads on ratings volume (8.2K vs 22). On price, update cadence, ads and in-app purchases 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 66铃声 sells 4 in-app purchases, starting at $2.49 per month. Whichever you choose, the download price is not the number that matters.

倒数日 · Days Matter holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: 倒数日 · Days Matter has 8.2K ratings behind it against 22, so its average is the more settled of the two.

倒数日 · Days Matter ships an update every 3 weeks, 66铃声 fortnightly. The most recent releases landed on September 25, 2026 and August 25, 2026 respectively.

## The numbers

| Metric | 倒数日 · Days Matter | 66铃声 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (8.2K ratings)](https://appshunter.io/ios/app/days-matter/id406170251/reviews)** | [4.3 (22 ratings)](https://appshunter.io/ios/app/66/id1517634537/reviews) |
| Number of ratings | **8.2K** | 22 |
| Positive reviews | 86.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 259 MB | 78 MB |
| Requires iOS | 13.0 | **12.1** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iDaily Corp.](https://appshunter.io/developer/364264742) | [ABV Mobile](https://appshunter.io/developer/595885253) |

## 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


### 66铃声

[App page](https://appshunter.io/ios/app/66/id1517634537)

Easily create custom ringtones by extracting audio from videos or audio files. Trim and edit sound clips to personalize your phone's alerts. Supports a wide range of iPhone models.

**Highlights:** Extract audio from videos, Extract audio from audio files, Quick audio trimming, Customizable sound clips, Direct ringtone setting, Wide iPhone model support

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度VIP会员 | $2.49 | per month |
| 半年VIP会员 | $8.49 | per 6 months |
| 年度VIP-新手特惠 | $8.99 | per year |
| 年度VIP会员 | $9.49 | 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 66铃声 free?

66铃声 is free to download, with in-app purchases available.

### Which has better reviews, 倒数日 · Days Matter or 66铃声?

倒数日 · Days Matter is rated higher. 倒数日 · Days Matter averages 4.8 out of 5 from 8.2K ratings, while 66铃声 averages 4.3 from 22 ratings.

### Do 倒数日 · Days Matter or 66铃声 have ads?

Both 倒数日 · Days Matter and 66铃声 show ads.

### Which is updated more often, 倒数日 · Days Matter or 66铃声?

倒数日 · Days Matter ships an update every 3 weeks, and 66铃声 fortnightly. Most recently, 倒数日 · Days Matter was updated on September 25, 2026 and 66铃声 on August 25, 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.*