# 成长通 vs Countdown

The clearest difference is in-app purchases: 成长通 at none against Countdown's 3. 成长通 also leads on iOS requirement (12.0 vs 16.2). On price, ads and device support there is nothing between them.

Both are free to download. Countdown sells 3 in-app purchases, starting at $0.99 per month. 成长通 asks for nothing beyond the download.

## The numbers

| Metric | 成长通 | Countdown |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 100 MB | 24 MB |
| Requires iOS | **12.0** | 16.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Securities Information Co., Ltd.](https://appshunter.io/developer/451109499) | [liang zhenying](https://appshunter.io/developer/987036715) |

## What reviewers say

### 成长通

[App page](https://appshunter.io/ios/app/id6444169493)

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

**In-app purchases:** none


### Countdown

[App page](https://appshunter.io/ios/app/countdown-day-reminder/id6795744563)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $0.99 | per month |
| 季度会员 | $2.99 | per 3 months |
| 年度会员 | $9.99 | per year |


## Frequently asked questions

### Is 成长通 free?

成长通 is free to download, with no in-app purchases.

### Is Countdown free?

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

### Do 成长通 or Countdown have ads?

Neither 成长通 nor Countdown shows ads.

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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.*