# WattGuru vs Kashf Lens

The clearest difference is in-app purchases: Kashf Lens at none against WattGuru's 1. WattGuru's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. WattGuru sells 1 one-off in-app purchase. Kashf Lens asks for nothing beyond the download.

WattGuru ships an update fortnightly, Kashf Lens weekly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | WattGuru | Kashf Lens |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 9 MB | 3 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Michael Caklec](https://appshunter.io/developer/974662614) | [Azziz Mimouni](https://appshunter.io/developer/1877626721) |

## What reviewers say

### WattGuru

[App page](https://appshunter.io/ios/app/wattguru/id6741865891)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WattGuru Full Version | $3.99 | one-time |


### Kashf Lens

[App page](https://appshunter.io/ios/app/kashf-lens-sensor-explorer/id6759244520)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WattGuru free?

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

### Is Kashf Lens free?

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

### Do WattGuru or Kashf Lens have ads?

Neither WattGuru nor Kashf Lens shows ads.

### Which is updated more often, WattGuru or Kashf Lens?

WattGuru ships an update fortnightly, and Kashf Lens weekly. Most recently, WattGuru was updated on October 25, 2026 and Kashf Lens on October 28, 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.*