# 倒数日 · Days Matter vs 新旧手机换机

The clearest difference is review sentiment: 倒数日 · Days Matter at 88% against 新旧手机换机's 6%. 倒数日 · Days Matter also leads on update cadence (every 3 weeks vs every 2 months). 新旧手机换机's advantage is ads (none vs shown) and iOS requirement (9.0 vs 13.0). On price, in-app purchases, monetization model and device support 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 新旧手机换机 sells 2 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

倒数日 · Days Matter ships an update every 3 weeks, 新旧手机换机 every 2 months. The most recent releases landed on October 19, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 倒数日 · Days Matter | 新旧手机换机 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (8.2K ratings)](https://appshunter.io/ios/app/days-matter/id406170251/reviews)** | — |
| Number of ratings | **8.2K** | — |
| Positive reviews | **87.6% of reviews** | 6.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 259 MB | 32 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iDaily Corp.](https://appshunter.io/developer/364264742) | [定坤 谢](https://appshunter.io/developer/1530711975) |

## 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


### 新旧手机换机

[App page](https://appshunter.io/ios/app/and/id1605922157)

Easily transfer all your phone data, including contacts, photos, and videos, to a new device. It also allows you to create and customize QR codes for various information and includes network speed and sound testing tools.

**Highlights:** Phone data migration, Contact, photo, and video transfer, QR code creation and customization, Network speed testing, Sound level testing, File sharing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 按周订阅高级功能 | $0.99 | per 7 days |
| 按月订阅高级功能 | $4.99 | per month |


## 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 新旧手机换机 free?

新旧手机换机 is free to download, with in-app purchases available.

### Do 倒数日 · Days Matter or 新旧手机换机 have ads?

倒数日 · Days Matter shows ads; 新旧手机换机 does not.

### Which is updated more often, 倒数日 · Days Matter or 新旧手机换机?

倒数日 · Days Matter ships an update every 3 weeks, and 新旧手机换机 every 2 months. Most recently, 倒数日 · Days Matter was updated on October 19, 2026 and 新旧手机换机 on October 11, 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.*