# Carringbooks vs Welding Study Guide

The clearest difference is in-app purchases: Carringbooks at none against Welding Study Guide's 3. Carringbooks also leads on iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Welding Study Guide sells 3 in-app purchases, starting at $3.99 per 7 days. Carringbooks asks for nothing beyond the download.

## The numbers

| Metric | Carringbooks | Welding Study Guide |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 94 MB | 48 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [JC Multimedia Design](https://appshunter.io/developer/343491692) | [Mobin Akhter](https://appshunter.io/developer/1812505286) |

## What reviewers say

### Carringbooks

[App page](https://appshunter.io/ios/app/carringbooks/id1472902471)

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

**In-app purchases:** none


### Welding Study Guide

[App page](https://appshunter.io/ios/app/welding-study-guide-gaugepass/id6800341288)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GaugePass Weekly | $3.99 | per 7 days |
| GaugePass Annual | $29.99 | per year |
| GaugePass Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Carringbooks free?

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

### Is Welding Study Guide free?

Welding Study Guide is free to download, with in-app purchases available.

### Do Carringbooks or Welding Study Guide have ads?

Neither Carringbooks nor Welding Study Guide 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.*