# 开球 vs TAME SleepTracker

The clearest difference is in-app purchases: TAME SleepTracker at none against 开球's 3. 开球's advantage is update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 开球 sells 3 in-app purchases, starting at $2.99 per month. TAME SleepTracker asks for nothing beyond the download.

开球 ships an update fortnightly, TAME SleepTracker every 2 months. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 开球 | TAME SleepTracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (10 ratings)](https://appshunter.io/ios/app/id6505133515/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Freemium | — |
| Size | 60 MB | 3 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Xi'an Mengdong Network Technology Co., Ltd.](https://appshunter.io/developer/1687598458) | [海舰 彭](https://appshunter.io/developer/1895290599) |

## What reviewers say

### 开球

[App page](https://appshunter.io/ios/app/id6505133515)

Track your badminton performance with detailed metrics like shot speed, calorie burn, and heart rate. Features include scorekeeping, footwork training, and a scoreboard. Integrates with Apple Health for secure data storage.

**Highlights:** Badminton performance tracking, Detailed workout metrics, Score recording and statistics, Footwork training modules, Customizable scoreboard, Integration with Apple Health

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 专业版月度会员 | $2.99 | per month |
| 专业版年度会员 | $24.99 | per year |
| 专业版永久会员 | $9.99 | one-time |


### TAME SleepTracker

[App page](https://appshunter.io/ios/app/tame-sleeptracker/id6773393532)

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

**In-app purchases:** none


## Frequently asked questions

### Is 开球 free?

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

### Is TAME SleepTracker free?

TAME SleepTracker is free to download, with no in-app purchases.

### Do 开球 or TAME SleepTracker have ads?

Neither 开球 nor TAME SleepTracker shows ads.

### Which is updated more often, 开球 or TAME SleepTracker?

开球 ships an update fortnightly, and TAME SleepTracker every 2 months. Most recently, 开球 was updated on November 4, 2026 and TAME SleepTracker on October 31, 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.*