# OpenResty XRay vs Zero

The clearest difference is in-app purchases: OpenResty XRay at none against Zero's 3. OpenResty XRay also leads on ads (none vs shown) and iOS requirement (12.0 vs 16.0). On price and device support there is nothing between them.

Both are free to download. Zero sells 3 one-off in-app purchases. OpenResty XRay asks for nothing beyond the download.

## The numbers

| Metric | OpenResty XRay | Zero |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | — |
| Size | 28 MB | 12 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [OpenResty Inc.](https://appshunter.io/developer/1664322415) | [Thuong Nguyen](https://appshunter.io/developer/948221852) |

## What reviewers say

### OpenResty XRay

[App page](https://appshunter.io/ios/app/openresty-xray/id1664322413)

**Features:** macOS Compatibility

**In-app purchases:** none


### Zero

[App page](https://appshunter.io/ios/app/zero-check-website-status/id6478543338)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Unlimited Websites | $1.99 | one-time |
| Professional | $2.99 | one-time |


## Frequently asked questions

### Is OpenResty XRay free?

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

### Is Zero free?

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

### Do OpenResty XRay or Zero have ads?

Zero shows ads; OpenResty XRay does not.

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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.*