# 闪清大师 vs 专业指南针

The clearest difference is monetization model: 专业指南针 at freemium against 闪清大师's subscription. 专业指南针 also leads on update cadence (every 4 days vs fortnightly). 闪清大师's advantage is review sentiment (20% vs 10%). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 闪清大师 sells 5 in-app purchases, starting at $6.99 per 7 days and 专业指南针 sells 4 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

闪清大师 ships an update fortnightly, 专业指南针 every 4 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | 闪清大师 | 专业指南针 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/gps/id6752315093/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | **20.0% of reviews** | 9.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Subscription | **Freemium** |
| Size | 65 MB | 43 MB |
| Requires iOS | 15.0 | 15 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [南京晚星文化科技有限公司](https://appshunter.io/developer/1814377424) | [Hutui tech](https://appshunter.io/developer/1814030829) |

## What reviewers say

### 闪清大师

[App page](https://appshunter.io/ios/app/id6748904489)

This app offers intelligent tools to optimize your phone's storage. It can identify duplicate photos, compress videos, and even restore old images. A decibel meter is also included for measuring ambient noise levels.

**Highlights:** Intelligent duplicate photo cleaning, Video compression, Decibel meter, Photo background removal, Old photo restoration

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $6.99 | per 7 days |
| 周会员 | $6.99 | per 7 days |
| 免费试用周会员 | $6.99 | per 7 days |
| 周会员 | $7.99 | per 7 days |
| 周会员 | $9.99 | per 7 days |


### 专业指南针

[App page](https://appshunter.io/ios/app/gps/id6752315093)

This app offers precise directional guidance and location services, featuring a high-accuracy compass, altitude, and coordinate display. It also includes a smart level tool, real-time weather updates, and a camera that adds location-based watermarks to photos.

**Highlights:** High-accuracy electronic compass, Altitude and coordinate display, Smart level tool, Real-time weather information, Watermark camera with location data, Outdoor navigation and life assistant

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 立即使用专业指南针 | $6.99 | per 7 days |
| 立即使用 | $6.99 | per 7 days |
| 立即使用 | $6.99 | per 7 days |
| 立即使用专业指南针 | $29.99 | per year |


## Frequently asked questions

### Is 闪清大师 free?

闪清大师 is free to download, with in-app purchases available.

### Is 专业指南针 free?

专业指南针 is free to download, with in-app purchases available.

### Do 闪清大师 or 专业指南针 have ads?

Neither 闪清大师 nor 专业指南针 shows ads.

### Which is updated more often, 闪清大师 or 专业指南针?

闪清大师 ships an update fortnightly, and 专业指南针 every 4 days. Most recently, 闪清大师 was updated on October 28, 2026 and 专业指南针 on October 28, 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.*