# 长轻膳食 vs 专业指南针

The clearest difference is in-app purchases: 长轻膳食 at none against 专业指南针's 4. 长轻膳食 also leads on iOS requirement (12.0 vs 15). 专业指南针's advantage is rating (4.2 vs 4.0) and update cadence (weekly vs fortnightly). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. 专业指南针 sells 4 in-app purchases, starting at $6.99 per 7 days. 长轻膳食 asks for nothing beyond the download.

专业指南针 holds the better App Store score, 4.2 against 4.0. Both are backed by a comparable volume of ratings — 4 and 5 respectively.

长轻膳食 ships an update fortnightly, 专业指南针 weekly. The most recent releases landed on October 9, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 长轻膳食 | 专业指南针 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/id6744307875/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/gps/id6752315093/reviews)** |
| Number of ratings | 4 | **5** |
| Positive reviews | — | 9.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | — | Freemium |
| Size | 73 MB | 43 MB |
| Requires iOS | **12.0** | 15 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Hainan Changqing Nutrition and Diet Therapy Health Co., Ltd.](https://appshunter.io/developer/1831191632) | [Hutui tech](https://appshunter.io/developer/1814030829) |

## What reviewers say

### 长轻膳食

[App page](https://appshunter.io/ios/app/id6744307875)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 长轻膳食 free?

长轻膳食 is free to download, with no in-app purchases.

### Is 专业指南针 free?

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

### Which has better reviews, 长轻膳食 or 专业指南针?

专业指南针 is rated higher. 长轻膳食 averages 4.0 out of 5 from 4 ratings, while 专业指南针 averages 4.2 from 5 ratings.

### Do 长轻膳食 or 专业指南针 have ads?

Neither 长轻膳食 nor 专业指南针 shows ads.

### Which is updated more often, 长轻膳食 or 专业指南针?

长轻膳食 ships an update fortnightly, and 专业指南针 weekly. Most recently, 长轻膳食 was updated on October 9, 2026 and 专业指南针 on October 20, 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.*