# 衡熵 vs SAM (供应账户管理)

The clearest difference is in-app purchases: SAM (供应账户管理) at none against 衡熵's 3. SAM (供应账户管理) also leads on iOS requirement (15.0 vs 18.6). 衡熵's advantage is update cadence (every 3 days vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. 衡熵 sells 3 in-app purchases, starting at $0.99 per month. SAM (供应账户管理) asks for nothing beyond the download.

衡熵 ships an update every 3 days, SAM (供应账户管理) fortnightly. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 衡熵 | SAM (供应账户管理) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Size | 14 MB | 6 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [玉庭 何](https://appshunter.io/developer/1867438392) | [Leedarson Lighting Co., Ltd](https://appshunter.io/developer/606088631) |

## What reviewers say

### 衡熵

[App page](https://appshunter.io/ios/app/id6761233174)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 自律锁月度订阅 | $0.99 | per month |
| 自律锁年度订阅 | $3.99 | per year |
| 自律锁终身解锁 | $12.99 | one-time |


### SAM (供应账户管理)

[App page](https://appshunter.io/ios/app/sam/id6763282610)

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

**In-app purchases:** none


## Frequently asked questions

### Is 衡熵 free?

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

### Is SAM (供应账户管理) free?

SAM (供应账户管理) is free to download, with no in-app purchases.

### Do 衡熵 or SAM (供应账户管理) have ads?

Neither 衡熵 nor SAM (供应账户管理) shows ads.

### Which is updated more often, 衡熵 or SAM (供应账户管理)?

衡熵 ships an update every 3 days, and SAM (供应账户管理) fortnightly. Most recently, 衡熵 was updated on October 13, 2026 and SAM (供应账户管理) on October 11, 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.*