# Watt Audit vs Rhino Certification

Watt Audit and Rhino Certification are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Watt Audit ships an update every 2 weeks, Rhino Certification fortnightly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Watt Audit | Rhino Certification |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Size | 104 MB | 44 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Watt Audit](https://appshunter.io/developer/1690904012) | [Rhino Certification](https://appshunter.io/developer/1896530744) |

## What reviewers say

### Watt Audit

[App page](https://appshunter.io/ios/app/watt-audit/id6449857114)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rhino Certification

[App page](https://appshunter.io/ios/app/rhino-certification/id6759287837)

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

**In-app purchases:** none


## Frequently asked questions

### Is Watt Audit free?

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

### Is Rhino Certification free?

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

### Do Watt Audit or Rhino Certification have ads?

Neither Watt Audit nor Rhino Certification shows ads.

### Which is updated more often, Watt Audit or Rhino Certification?

Watt Audit ships an update every 2 weeks, and Rhino Certification fortnightly. Most recently, Watt Audit was updated on October 30, 2026 and Rhino Certification on October 25, 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.*