# VOLTRAC Battery vs TestLink 2025

The clearest difference is update cadence: TestLink 2025 at every 3 weeks against VOLTRAC Battery's every 4 months. VOLTRAC Battery's advantage is iOS requirement (11.0 vs 13.0). 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.

VOLTRAC Battery ships an update every 4 months, TestLink 2025 every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | VOLTRAC Battery | TestLink 2025 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 21 MB | 11 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [应刚 郑](https://appshunter.io/developer/1446858821) | [CENTER TECHNOLOGY CORP.](https://appshunter.io/developer/1858182680) |

## What reviewers say

### VOLTRAC Battery

[App page](https://appshunter.io/ios/app/voltrac-battery/id1613895105)

**Features:** macOS Compatibility

**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 VOLTRAC Battery free?

VOLTRAC Battery 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 VOLTRAC Battery or TestLink 2025 have ads?

Neither VOLTRAC Battery nor TestLink 2025 shows ads.

### Which is updated more often, VOLTRAC Battery or TestLink 2025?

VOLTRAC Battery ships an update every 4 months, and TestLink 2025 every 3 weeks. Most recently, VOLTRAC Battery was updated on November 3, 2026 and TestLink 2025 on October 30, 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.*