# Airzone Pro Cloud vs Screw Size Drill Bit Chart

The clearest difference is in-app purchases: Airzone Pro Cloud at none against Screw Size Drill Bit Chart's 3. Airzone Pro Cloud also leads on update cadence (every 2 weeks vs monthly) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Screw Size Drill Bit Chart sells 3 in-app purchases, starting at $2.99 per 7 days. Airzone Pro Cloud asks for nothing beyond the download.

Airzone Pro Cloud ships an update every 2 weeks, Screw Size Drill Bit Chart monthly. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Airzone Pro Cloud | Screw Size Drill Bit Chart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 48 MB | 23 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Corporacion Empresarial Altra SL](https://appshunter.io/developer/669410460) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Airzone Pro Cloud

[App page](https://appshunter.io/ios/app/airzone-pro-cloud/id6737261732)

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

**In-app purchases:** none


### Screw Size Drill Bit Chart

[App page](https://appshunter.io/ios/app/screw-size-drill-bit-chart/id6772276125)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Countersink Pro, Weekly | $2.99 | per 7 days |
| Thread Finder, Yearly | $14.99 | per year |
| Full Fastener Guide, One-Time | $29.99 | one-time |


## Frequently asked questions

### Is Airzone Pro Cloud free?

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

### Is Screw Size Drill Bit Chart free?

Screw Size Drill Bit Chart is free to download, with in-app purchases available.

### Do Airzone Pro Cloud or Screw Size Drill Bit Chart have ads?

Neither Airzone Pro Cloud nor Screw Size Drill Bit Chart shows ads.

### Which is updated more often, Airzone Pro Cloud or Screw Size Drill Bit Chart?

Airzone Pro Cloud ships an update every 2 weeks, and Screw Size Drill Bit Chart monthly. Most recently, Airzone Pro Cloud was updated on October 10, 2026 and Screw Size Drill Bit Chart on October 6, 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.*