# HumProbCalc (N) vs Lightning Tracker

The clearest difference is price: Lightning Tracker at Free against HumProbCalc (N)'s $1.99. Lightning Tracker also leads on iOS requirement (13.0 vs 15.0). HumProbCalc (N)'s advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence and device support there is nothing between them.

Lightning Tracker is free to download; HumProbCalc (N) costs $1.99 up front. Lightning Tracker sells 1 one-off in-app purchase. HumProbCalc (N) asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | HumProbCalc (N) | Lightning Tracker |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[4.3 (574 ratings)](https://appshunter.io/ios/app/lightning-tracker/id1473753714/reviews)** |
| Number of ratings | — | **574** |
| Positive reviews | — | 74.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 127 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Ivan Miguel Serrano Pires](https://appshunter.io/developer/654748916) | [Elecont LLC](https://appshunter.io/developer/401533969) |

## What reviewers say

### HumProbCalc (N)

[App page](https://appshunter.io/ios/app/humprobcalc-n/id654748913)

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

**In-app purchases:** none


### Lightning Tracker

[App page](https://appshunter.io/ios/app/lightning-tracker/id1473753714)

Visualize real-time lightning strikes across North and South America on a dynamic map. Receive predictive alerts for strike patterns and intensity, with estimated arrival times for your location. Monitor current and historical lightning activity to stay informed and protected.

**Highlights:** Live lightning map, Real-time strike visualization, Predictive lightning alerts, Estimated time of arrival (ETA) for strikes, Monitor saved locations, 6-hour strike history

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads & Limits | $2.99 | one-time |

**What reviewers like**

- 🚀 Accurate and real-time lightning tracking
- 👍 Helpful for safety and planning outdoor activities
- 💡 Useful for weather monitoring and storm tracking
- ⭐ Excellent app overall

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 🔋 High battery consumption
- 📢 Intrusive ads in free version
- 🚫 Lack of important features like distance, alerts, and history

**Reported bugs**

- App not detecting lightning strikes even when visible
- Frequent crashes and freezes
- Issues with app updates and functionality changes

**Requested features**

- Add distance/radius information for lightning strikes
- Implement push notifications/alerts for lightning within a certain radius
- Provide historical data and the ability to view past lightning activity
- Improve overall app stability and performance


## Frequently asked questions

### Is HumProbCalc (N) free?

HumProbCalc (N) costs $1.99, with no in-app purchases.

### Is Lightning Tracker free?

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

### Do HumProbCalc (N) or Lightning Tracker have ads?

Lightning Tracker shows ads; HumProbCalc (N) does not.

### Which is updated more often, HumProbCalc (N) or Lightning Tracker?

HumProbCalc (N) ships an update every 4 months, and Lightning Tracker every 4 months. Most recently, HumProbCalc (N) was updated on October 6, 2026 and Lightning Tracker on October 15, 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.*