# Watt Audit vs Instal

The clearest difference is update cadence: Watt Audit at every 2 weeks against Instal's every 5 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.

Watt Audit ships an update every 2 weeks, Instal every 5 weeks. The most recent releases landed on September 15, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Watt Audit | Instal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Size | 155 MB | 125 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Watt Audit](https://appshunter.io/developer/1690904012) | [Axtech](https://appshunter.io/developer/1725028256) |

## What reviewers say

### Watt Audit

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Instal

[App page](https://appshunter.io/ios/app/instal/id6504595921)

**Features:** macOS Compatibility, Apple Wallet, 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 Instal free?

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

### Do Watt Audit or Instal have ads?

Neither Watt Audit nor Instal shows ads.

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

Watt Audit ships an update every 2 weeks, and Instal every 5 weeks. Most recently, Watt Audit was updated on September 15, 2026 and Instal on September 18, 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.*