HumProbCalc (N) vs Lightning Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HumProbCalc (N)
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HumProbCalc North is the field tool for estimating dead fuel moisture and fire ignition probability in seconds, based on temperature, relative humidity, shade, sun exposure, terrain slope and time of day. KEY FEATURES - Fast fuel moisture calculation from temperature and relative humidity - Ignition probability calculation, combining humidity, shade, exposure and slope - Support for three temperature units (ºC, ºF, ºK) - Automatic location detection with place-name lookup - History of all calculations, with date, time and location - Simple, fast interface built for field use, even with poor connectivity - Available in Portuguese, English, French and Spanish WHO IT'S FOR Built for firefighters, forest rangers, wildland fire crews, civil protection technicians, and anyone who needs to quickly assess forest fire risk on the ground. Calculations are based on standard reference tables for dead fine fuel moisture and ignition probability used in forest fire risk assessment.
Lightning Tracker
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.
- Live lightning map
- Real-time strike visualization
- Predictive lightning alerts
- Estimated time of arrival (ETA) for strikes
- Monitor saved locations
- 6-hour strike history
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Stay safe from lightning! Lightning Tracker delivers real-time lightning strike data for North and South America, keeping you and your loved ones protected. Live Lightning Map: Watch real-time strikes across the Americas with color-coded visuals to track lightning movement. Lightning Alerts: Predict strike patterns and intensity, with ETAs for your location. Monitor Anywhere: Check strikes near you or saved spots, like home or family, in one tap. 6-Hour Strike History: Analyze past lightning trends to stay one step ahead. Protect what matters most with Lightning Tracker. Download now to track strikes and stay safe!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | HumProbCalc (N) | Lightning Tracker |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 4.3 (574 ratings) — better |
| Positive reviews | — | 74.6% of reviews |
| Number of ratings | — | 574 — better |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 127 MB |
| Age rating | +4 | 4+ |
| Developer | Ivan Miguel Serrano Pires | Elecont LLC |
Bugs and requests
HumProbCalc (N)
Not enough reviews yet to summarise bugs or requests.
Lightning Tracker
Reported bugs
3 issues- App not detecting lightning strikes even when visible
- Frequent crashes and freezes
- Issues with app updates and functionality changes
Requested features
4 requests- 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
In-app purchases
HumProbCalc (N)
No in-app purchases
Lightning Tracker
- Remove Ads & Limits$2.99
Questions
Is HumProbCalc (N) free?
Is Lightning Tracker free?
Do HumProbCalc (N) or Lightning Tracker have ads?
Which is updated more often, HumProbCalc (N) or Lightning Tracker?
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