# 应用软件锁 vs S'Im

The clearest difference is in-app purchases: S'Im at none against 应用软件锁's 11. S'Im also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 应用软件锁 sells 10 in-app purchases, starting at $0.99 per 7 days. S'Im asks for nothing beyond the download.

应用软件锁 ships an update fortnightly, S'Im every 3 weeks. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | 应用软件锁 | S'Im |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 101 MB | 51 MB |
| Requires iOS | 16.1 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [XMAN HONG KONG LIMITED](https://appshunter.io/developer/1627407248) | [永宁 覃](https://appshunter.io/developer/1836820468) |

## What reviewers say

### 应用软件锁

[App page](https://appshunter.io/ios/app/app-lock-plus/id6738981551)

Secure your mobile apps and personal data with advanced locking features. Protect against unauthorized access, manage phone usage for children, and customize your device's appearance for enhanced privacy.

**Highlights:** App locking for privacy, Lending mode for shared devices, Anti-uninstallation protection, Customizable desktop icons, Local data processing for security, Child usage management

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly member | $0.99 | per 7 days |
| Monthly member | $1.99 | per month |
| 月度会员 | $1.99 | per month |
| 年度会员 | $3.99 | per year |
| Quarterly member | $7.99 | per 3 months |
| Quarterly member | $7.99 | per 3 months |
| Annual member | $24.99 | per year |
| Annual member | $24.99 | per year |
| Permanent Membership | $9.99 | one-time |
| Annual member | $24.99 | one-time |


### S'Im

[App page](https://appshunter.io/ios/app/sim-im/id6756286009)

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

**In-app purchases:** none


## Frequently asked questions

### Is 应用软件锁 free?

应用软件锁 is free to download, with in-app purchases available.

### Is S'Im free?

S'Im is free to download, with no in-app purchases.

### Do 应用软件锁 or S'Im have ads?

应用软件锁 shows ads; S'Im does not.

### Which is updated more often, 应用软件锁 or S'Im?

应用软件锁 ships an update fortnightly, and S'Im every 3 weeks. Most recently, 应用软件锁 was updated on October 2, 2026 and S'Im on September 29, 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.*