# Socket2U Charging vs TestLink 2025

The clearest difference is iOS requirement: TestLink 2025 at 13.0 against Socket2U Charging's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Socket2U Charging ships an update every 6 weeks, TestLink 2025 every 3 weeks. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Socket2U Charging | TestLink 2025 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 59 MB | 11 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Socket2U Charging LLC](https://appshunter.io/developer/1855793884) | [CENTER TECHNOLOGY CORP.](https://appshunter.io/developer/1858182680) |

## What reviewers say

### Socket2U Charging

[App page](https://appshunter.io/ios/app/socket2u-charging/id6755713572)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### TestLink 2025

[App page](https://appshunter.io/ios/app/testlink-2025/id6756169175)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Socket2U Charging free?

Socket2U Charging is free to download, with no in-app purchases.

### Is TestLink 2025 free?

TestLink 2025 is free to download, with no in-app purchases.

### Do Socket2U Charging or TestLink 2025 have ads?

Neither Socket2U Charging nor TestLink 2025 shows ads.

### Which is updated more often, Socket2U Charging or TestLink 2025?

Socket2U Charging ships an update every 6 weeks, and TestLink 2025 every 3 weeks. Most recently, Socket2U Charging was updated on October 2, 2026 and TestLink 2025 on October 3, 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.*