# Lightning Distance Calculator vs RADOM

The clearest difference is price: RADOM at Free against Lightning Distance Calculator's $0.99. RADOM also leads on update cadence (every 7 months vs every 96 months) and device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

RADOM is free to download; Lightning Distance Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Lightning Distance Calculator ships an update every 96 months, RADOM every 7 months. The most recent releases landed on November 1, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Lightning Distance Calculator | RADOM |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/lightning-distance-calculator/id348821275/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 96 months | **Every 7 months** |
| Monetization | Paid | — |
| Size | 7 MB | 4 MB |
| Requires iOS | 16.6 | **15.5** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gianluca Natalini](https://appshunter.io/developer/348380792) | [JS TECHWIN Co., Ltd.](https://appshunter.io/developer/1641211285) |

## What reviewers say

### Lightning Distance Calculator

[App page](https://appshunter.io/ios/app/lightning-distance-calculator/id348821275)

This utility app estimates the distance to lightning strikes by measuring the time between seeing lightning and hearing thunder. It provides calculations in both meters and feet, with adjustable temperature settings for accuracy. Geotagging with GPS data is also included.

**Highlights:** Lightning and thunder time measurement, Distance calculation in meters and feet, Adjustable atmospheric temperature, Geotagging with 3D GPS data

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

**In-app purchases:** none


### RADOM

[App page](https://appshunter.io/ios/app/radom/id1641211283)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lightning Distance Calculator free?

Lightning Distance Calculator costs $0.99, with no in-app purchases.

### Is RADOM free?

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

### Do Lightning Distance Calculator or RADOM have ads?

Neither Lightning Distance Calculator nor RADOM shows ads.

### Which is updated more often, Lightning Distance Calculator or RADOM?

Lightning Distance Calculator ships an update every 96 months, and RADOM every 7 months. Most recently, Lightning Distance Calculator was updated on November 1, 2026 and RADOM on October 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*