# Zero vs DV+ Calibration

The clearest difference is in-app purchases: DV+ Calibration at none against Zero's 3. DV+ Calibration also leads on ads (none vs shown). Zero's advantage is chart position (#124 vs unranked). On price, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Zero | DV+ Calibration |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | — | Every 5 weeks |
| Best chart rank | **#124** | — |
| Size | 12 MB | 3 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thuong Nguyen](https://appshunter.io/developer/948221852) | [NEWLINE INTERACTIVE, INC.](https://appshunter.io/developer/1459593476) |

## What reviewers say

### Zero

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

**Currently charting:** #124 Top Grossing · Developer Tools (US App Store)

**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 |


### DV+ Calibration

[App page](https://appshunter.io/ios/app/dv-plus-calibration/id6504960175)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zero free?

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

### Is DV+ Calibration free?

DV+ Calibration is free to download, with no in-app purchases.

### Do Zero or DV+ Calibration have ads?

Zero shows ads; DV+ Calibration 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.*