# Thunderstorm Calculator vs Tulu's Socks

The clearest difference is price: Tulu's Socks at Free against Thunderstorm Calculator's $0.99. Thunderstorm Calculator's advantage is chart position (#153 vs unranked) and device support (4 vs 2). On ads, in-app purchases and iOS requirement there is nothing between them.

Tulu's Socks is free to download; Thunderstorm Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Thunderstorm Calculator | Tulu's Socks |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/thunderstorm-calculator/id389042852/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | — |
| Monetization | Paid | — |
| Best chart rank | **#153** | — |
| Size | 18 MB | 9 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [Bahadir Ersin](https://appshunter.io/developer/1652869144) |

## What reviewers say

### Thunderstorm Calculator

[App page](https://appshunter.io/ios/app/thunderstorm-calculator/id389042852)

**Currently charting:** #153 Top Paid · Weather (US App Store)

Measure the distance to a thunderstorm by timing the interval between lightning and thunder. View your storm history to track its movement and toggle between metric and imperial units.

**Highlights:** Lightning and thunder timing, Distance calculation, Metric and imperial units, Storm history tracking, Apple Watch support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Tulu's Socks

[App page](https://appshunter.io/ios/app/tulus-socks/id6478596318)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thunderstorm Calculator free?

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

### Is Tulu's Socks free?

Tulu's Socks is free to download, with no in-app purchases.

### Do Thunderstorm Calculator or Tulu's Socks have ads?

Neither Thunderstorm Calculator nor Tulu's Socks shows ads.

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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.*