# Thunderstorm Calculator vs pollen.ny

The clearest difference is price: pollen.ny at Free against Thunderstorm Calculator's $0.99. pollen.ny also leads on rating (5.0 vs 3.0) and update cadence (monthly vs every 33 months). Thunderstorm Calculator's advantage is chart position (#146 vs unranked) and device support (4 vs 2). On ratings volume, ads and in-app purchases there is nothing between them.

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

pollen.ny holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

Thunderstorm Calculator ships an update every 33 months, pollen.ny monthly. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Thunderstorm Calculator | pollen.ny |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/thunderstorm-calculator/id389042852/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/pollenny/id1560929942/reviews)** |
| Number of ratings | 3 | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Monthly** |
| Monetization | Paid | **Free** |
| Best chart rank | **#146** | — |
| Size | 18 MB | 7 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [Sabri Sonmez](https://appshunter.io/developer/1560929944) |

## What reviewers say

### Thunderstorm Calculator

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

**Currently charting:** #146 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


### pollen.ny

[App page](https://appshunter.io/ios/app/pollenny/id1560929942)

Track local pollen levels in New York City with real research data and live forecasts. Explore seasonal trends, compare observations, and receive smart alerts for rising pollen counts. Designed for allergy-conscious individuals and researchers.

**Highlights:** Fordham research data, Google forecast integration, Interactive heatmap, Historical trends, Smart alerts, Data source comparison

**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 pollen.ny free?

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

### Which has better reviews, Thunderstorm Calculator or pollen.ny?

pollen.ny is rated higher. Thunderstorm Calculator averages 3.0 out of 5 from 3 ratings, while pollen.ny averages 5.0 from 4 ratings.

### Do Thunderstorm Calculator or pollen.ny have ads?

Neither Thunderstorm Calculator nor pollen.ny shows ads.

### Which is updated more often, Thunderstorm Calculator or pollen.ny?

Thunderstorm Calculator ships an update every 33 months, and pollen.ny monthly. Most recently, Thunderstorm Calculator was updated on October 24, 2026 and pollen.ny on October 5, 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.*