# Warm U vs Soulsfeng

The clearest difference is update cadence: Warm U at weekly against Soulsfeng's every 5 weeks. Warm U also leads on iOS requirement (12.0 vs 15.0). 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.

Warm U ships an update weekly, Soulsfeng every 5 weeks. The most recent releases landed on September 10, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Warm U | Soulsfeng |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 5 weeks |
| Size | 19 MB | 24 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [海洋 刘](https://appshunter.io/developer/1736870190) | [逢春 黄](https://appshunter.io/developer/1668735348) |

## What reviewers say

### Warm U

[App page](https://appshunter.io/ios/app/warm-u/id6504526300)

**Features:** macOS Compatibility

**In-app purchases:** none


### Soulsfeng

[App page](https://appshunter.io/ios/app/soulsfeng/id6737499607)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Warm U free?

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

### Is Soulsfeng free?

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

### Do Warm U or Soulsfeng have ads?

Neither Warm U nor Soulsfeng shows ads.

### Which is updated more often, Warm U or Soulsfeng?

Warm U ships an update weekly, and Soulsfeng every 5 weeks. Most recently, Warm U was updated on September 10, 2026 and Soulsfeng on September 14, 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.*