# PSG vs 24节气·饮食养生日历

The clearest difference is update cadence: 24节气·饮食养生日历 at every 9 days against PSG's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PSG ships an update every 8 months, 24节气·饮食养生日历 every 9 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | PSG | 24节气·饮食养生日历 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 271 MB | 3 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Hong Kong Police](https://appshunter.io/developer/1712090593) | [To Chi CHAN](https://appshunter.io/developer/6812305522) |

## What reviewers say

### PSG

[App page](https://appshunter.io/ios/app/psg/id6737473522)

**In-app purchases:** none


### 24节气·饮食养生日历

[App page](https://appshunter.io/ios/app/24/id6812305520)

This app integrates the wisdom of China's 24 solar terms into daily eating and living. It offers a solar term calendar with health tips, seasonal ingredient information, and meal suggestions. It also includes lunar phases, weather alerts, and a diet log.

**Highlights:** 24 Solar Terms calendar with health tips, Lunar phase calendar, Seasonal ingredient guide, Daily meal and soup recipes, Weather and barometric pressure alerts, Diet logging and PDF export, Sync solar terms to system calendar

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

**In-app purchases:** none


## Frequently asked questions

### Is PSG free?

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

### Is 24节气·饮食养生日历 free?

24节气·饮食养生日历 is free to download, with no in-app purchases.

### Do PSG or 24节气·饮食养生日历 have ads?

Neither PSG nor 24节气·饮食养生日历 shows ads.

### Which is updated more often, PSG or 24节气·饮食养生日历?

PSG ships an update every 8 months, and 24节气·饮食养生日历 every 9 days. Most recently, PSG was updated on October 25, 2026 and 24节气·饮食养生日历 on October 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*