# Topo Fire vs HeatMark

The clearest difference is rating: HeatMark at 5.0 against Topo Fire's 4.5. HeatMark also leads on in-app purchases (none vs 1). Topo Fire's advantage is ads (none vs shown) and update cadence (weekly vs every 3 months). On price there is nothing between them.

Both are free to download. Topo Fire sells 1 in-app purchase, starting at $59.99 per year. HeatMark asks for nothing beyond the download.

HeatMark holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Topo Fire has 11 ratings behind it against 1, so its average is the more settled of the two.

Topo Fire ships an update weekly, HeatMark every 3 months. The most recent releases landed on September 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Topo Fire | HeatMark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (11 ratings)](https://appshunter.io/ios/app/topo-fire/id6446780541/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/heatmark-fire-tracker/id6759346590/reviews)** |
| Number of ratings | **11** | 1 |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Best chart rank | **#198** | — |
| Size | 185 MB | 40 MB |
| Requires iOS | **15** | 17.6 |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Glacier Peak Studios LLC](https://appshunter.io/developer/672246356) | [Epic Genius LLC](https://appshunter.io/developer/1193070219) |

## What reviewers say

### Topo Fire

[App page](https://appshunter.io/ios/app/topo-fire/id6446780541)

**Currently charting:** #198 Top Grossing · Navigation (US App Store)

This app provides wildland firefighters with essential mapping tools and resources for incident response. It offers shared incident maps, various map layers, and navigation aids, all accessible on mobile devices and Apple Watch.

**Highlights:** Shared incident maps with live location, Multiple map layers (USGS, Forest Service, etc.), Drawing and waypoint tools, Proximity alerts, Apple Watch integration, Cloud sync across devices

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Topo Fire Pro | $59.99 | per year |


### HeatMark

[App page](https://appshunter.io/ios/app/heatmark-fire-tracker/id6759346590)

Monitor active fires in real-time with live maps, satellite data, and weather overlays. Understand fire progression with growth rings and wind conditions. Save locations for quick access and stay informed about wildfire activity.

**Highlights:** Live wildfire map with NASA satellite data, Advanced satellite layers (MODIS, VIIRS), Growth ring visualization for fire progression, Smoke and radar overlays, Live wind conditions, Saved locations and watchlist monitoring

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

**In-app purchases:** none


## Frequently asked questions

### Is Topo Fire free?

Topo Fire is free to download, with in-app purchases available.

### Is HeatMark free?

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

### Which has better reviews, Topo Fire or HeatMark?

HeatMark is rated higher. Topo Fire averages 4.5 out of 5 from 11 ratings, while HeatMark averages 5.0 from 1 ratings.

### Do Topo Fire or HeatMark have ads?

HeatMark shows ads; Topo Fire does not.

### Which is updated more often, Topo Fire or HeatMark?

Topo Fire ships an update weekly, and HeatMark every 3 months. Most recently, Topo Fire was updated on September 14, 2026 and HeatMark on October 7, 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.*