# VoltInstall vs Watt Audit

The clearest difference is update cadence: VoltInstall at weekly against Watt Audit's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

VoltInstall ships an update weekly, Watt Audit every 2 weeks. The most recent releases landed on September 18, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | VoltInstall | Watt Audit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 45 MB | 155 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [IVOLTALIS](https://appshunter.io/developer/1802911517) | [Watt Audit](https://appshunter.io/developer/1690904012) |

## What reviewers say

### VoltInstall

[App page](https://appshunter.io/ios/app/voltinstall/id1608570817)

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

**In-app purchases:** none


### Watt Audit

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VoltInstall free?

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

### Is Watt Audit free?

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

### Do VoltInstall or Watt Audit have ads?

Neither VoltInstall nor Watt Audit shows ads.

### Which is updated more often, VoltInstall or Watt Audit?

VoltInstall ships an update weekly, and Watt Audit every 2 weeks. Most recently, VoltInstall was updated on September 18, 2026 and Watt Audit on September 15, 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.*