# SoluDyne vs Weld Heat Input

The clearest difference is in-app purchases: SoluDyne at none against Weld Heat Input's 1. SoluDyne also leads on iOS requirement (11.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Weld Heat Input sells 1 one-off in-app purchase. SoluDyne asks for nothing beyond the download.

## The numbers

| Metric | SoluDyne | Weld Heat Input |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 121 MB | 2 MB |
| Requires iOS | **11.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SoluDyne](https://appshunter.io/developer/1376604682) | [光 杨](https://appshunter.io/developer/1891134953) |

## What reviewers say

### SoluDyne

[App page](https://appshunter.io/ios/app/soludyne/id1481579494)

**Features:** macOS Compatibility

**In-app purchases:** none


### Weld Heat Input

[App page](https://appshunter.io/ios/app/weld-heat-input/id6787826585)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weld Job Cards Unlock | $9.99 | one-time |


## Frequently asked questions

### Is SoluDyne free?

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

### Is Weld Heat Input free?

Weld Heat Input is free to download, with in-app purchases available.

### Do SoluDyne or Weld Heat Input have ads?

Neither SoluDyne nor Weld Heat Input shows ads.

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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.*