# EvaKoolPro vs WeldCalc Pro

The clearest difference is in-app purchases: EvaKoolPro at none against WeldCalc Pro's 2. EvaKoolPro also leads on iOS requirement (10.3 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. WeldCalc Pro sells 2 in-app purchases, starting at $1.99 per 7 days. EvaKoolPro asks for nothing beyond the download.

EvaKoolPro ships an update fortnightly, WeldCalc Pro every 3 weeks. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | EvaKoolPro | WeldCalc Pro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 65 MB | 21 MB |
| Requires iOS | **10.3** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [显松 罗](https://appshunter.io/developer/585124175) | [Ersel Tarhan](https://appshunter.io/developer/1093545232) |

## What reviewers say

### EvaKoolPro

[App page](https://appshunter.io/ios/app/evakoolpro/id1486515316)

Control your car refrigerator remotely via Wi-Fi. Adjust settings and monitor parameters directly from your smartphone.

**Highlights:** Wi-Fi connectivity, Parameter control, Smartphone integration, Remote monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### WeldCalc Pro

[App page](https://appshunter.io/ios/app/weldcalc-pro-welding-calc/id6759536437)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Annual Premium | $19.99 | per year |


## Frequently asked questions

### Is EvaKoolPro free?

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

### Is WeldCalc Pro free?

WeldCalc Pro is free to download, with in-app purchases available.

### Do EvaKoolPro or WeldCalc Pro have ads?

Neither EvaKoolPro nor WeldCalc Pro shows ads.

### Which is updated more often, EvaKoolPro or WeldCalc Pro?

EvaKoolPro ships an update fortnightly, and WeldCalc Pro every 3 weeks. Most recently, EvaKoolPro was updated on October 14, 2026 and WeldCalc Pro on October 15, 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.*