# Ohms Law vs Drone Scanner

The clearest difference is review sentiment: Ohms Law at 70% against Drone Scanner's 16%. Ohms Law also leads on rating (4.3 vs 1.9) and iOS requirement (12.0 vs 14.0). Drone Scanner's advantage is ads (none vs shown) and update cadence (every 3 months vs every 16 months). On price, 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.

Ohms Law holds the better App Store score, 4.3 against 1.9. That said, the two scores are not equally well evidenced: Drone Scanner has 147 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 70% of Ohms Law's written reviews are positive against 16% of Drone Scanner's.

Ohms Law ships an update every 16 months, Drone Scanner every 3 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Ohms Law | Drone Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (7 ratings)](https://appshunter.io/ios/app/ohms-law/id590727537/reviews)** | [1.9 (147 ratings)](https://appshunter.io/ios/app/drone-scanner/id1644548782/reviews) |
| Number of ratings | 7 | **147** |
| Positive reviews | **70.0% of reviews** | 15.9% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 16 months | **Every 3 months** |
| Monetization | Ad-supported | **Free** |
| Size | 12 MB | 41 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pro Certs Software Ltd](https://appshunter.io/developer/444429696) | [Dronetag](https://appshunter.io/developer/1527565212) |

## What reviewers say

### Ohms Law

[App page](https://appshunter.io/ios/app/ohms-law/id590727537)

This utility app calculates voltage, current, resistance, and power using Ohm's Law. Simply input any two values, and the app will compute the remaining two, providing a comprehensive tool for electrical calculations.

**Highlights:** Calculate Voltage, Calculate Current, Calculate Resistance, Calculate Power, Input two values to find others

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

**In-app purchases:** none


### Drone Scanner

[App page](https://appshunter.io/ios/app/drone-scanner/id1644548782)

Transform your device into a drone scanner to track nearby flights in real-time. View detailed flight information, including pilot data and location history, on an interactive map. The app is updated to comply with current EU and US regulations.

**Highlights:** Real-time drone tracking, Detailed drone information, Interactive flight map, Support for Bluetooth and Wi-Fi broadcasts, Flying zone highlighting, Data export functionality

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Works as advertised
- 🚀 Great app for Android
- 💡 Excellent Remote ID scanner

**What reviewers complain about**

- 🐛 Does not work on iOS
- 🐛 Unable to detect drones
- 🔒 Privacy concerns
- 🔒 Collects personal information

**Reported bugs**

- App crashes on launch
- Unable to locate drones in proximity
- Inaccurate location tracking

**Requested features**

- Add support for WiFi-based Remote ID
- Add support for more drone models
- Allow changing units from metric to imperial


## Frequently asked questions

### Is Ohms Law free?

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

### Is Drone Scanner free?

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

### Which has better reviews, Ohms Law or Drone Scanner?

Ohms Law is rated higher. Ohms Law averages 4.3 out of 5 from 7 ratings, while Drone Scanner averages 1.9 from 147 ratings.

### Do Ohms Law or Drone Scanner have ads?

Ohms Law shows ads; Drone Scanner does not.

### Which is updated more often, Ohms Law or Drone Scanner?

Ohms Law ships an update every 16 months, and Drone Scanner every 3 months. Most recently, Ohms Law was updated on October 23, 2026 and Drone Scanner on October 24, 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.*