# Pro vs CENTRAC

The clearest difference is update cadence: Pro at fortnightly against CENTRAC's every 12 months. CENTRAC's advantage is iOS requirement (12.0 vs 14.6). 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.

Pro ships an update fortnightly, CENTRAC every 12 months. The most recent releases landed on May 16, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Pro | CENTRAC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 12 months |
| Size | 1 MB | 14 MB |
| Requires iOS | 14.6 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Haidi Energy Technology Co.,Ltd.](https://appshunter.io/developer/1645467042) | [Multibat Nederland B.V.](https://appshunter.io/developer/1753962156) |

## What reviewers say

### Pro

[App page](https://appshunter.io/ios/app/pro-user/id6504571751)

**Features:** macOS Compatibility

**In-app purchases:** none


### CENTRAC

[App page](https://appshunter.io/ios/app/centrac/id6504823004)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pro free?

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

### Is CENTRAC free?

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

### Do Pro or CENTRAC have ads?

Neither Pro nor CENTRAC shows ads.

### Which is updated more often, Pro or CENTRAC?

Pro ships an update fortnightly, and CENTRAC every 12 months. Most recently, Pro was updated on May 16, 2026 and CENTRAC on September 14, 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.*