# StarLock Pro vs 4Success

The clearest difference is in-app purchases: StarLock Pro at none against 4Success's 1. StarLock Pro also leads on ads (none vs shown) and iOS requirement (13.0 vs 16.4). On price and device support there is nothing between them.

Both are free to download. 4Success sells 1 one-off in-app purchase. StarLock Pro asks for nothing beyond the download.

## The numbers

| Metric | StarLock Pro | 4Success |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | — |
| Size | 68 MB | 137 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Xinhongjia Electronics Co., Ltd](https://appshunter.io/developer/1741688148) | [Yuk Ting Tiffany Tsang](https://appshunter.io/developer/6790136250) |

## What reviewers say

### StarLock Pro

[App page](https://appshunter.io/ios/app/starlock-pro/id6498551540)

**Features:** macOS Compatibility

**In-app purchases:** none


### 4Success

[App page](https://appshunter.io/ios/app/4success/id6805350725)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 會員 | $1.99 | one-time |


## Frequently asked questions

### Is StarLock Pro free?

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

### Is 4Success free?

4Success is free to download, with in-app purchases available.

### Do StarLock Pro or 4Success have ads?

4Success shows ads; StarLock Pro does not.

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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.*