# Heat Compass vs Lightning Tracker & Thunder

The clearest difference is device support: Lightning Tracker & Thunder at 3 against Heat Compass's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Heat Compass ships an update weekly, Lightning Tracker & Thunder every 5 days. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Heat Compass | Lightning Tracker & Thunder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Size | 44 MB | 44 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [craig merry](https://appshunter.io/developer/1709539824) | [Feynman EinsteinAI Note Taker OU](https://appshunter.io/developer/1782064427) |

## What reviewers say

### Heat Compass

[App page](https://appshunter.io/ios/app/heat-compass/id6746873620)

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

**In-app purchases:** none


### Lightning Tracker & Thunder

[App page](https://appshunter.io/ios/app/lightning-tracker-and-thunder/id6797213318)

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

**In-app purchases:** none


## Frequently asked questions

### Is Heat Compass free?

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

### Is Lightning Tracker & Thunder free?

Lightning Tracker & Thunder is free to download, with no in-app purchases.

### Do Heat Compass or Lightning Tracker & Thunder have ads?

Neither Heat Compass nor Lightning Tracker & Thunder shows ads.

### Which is updated more often, Heat Compass or Lightning Tracker & Thunder?

Heat Compass ships an update weekly, and Lightning Tracker & Thunder every 5 days. Most recently, Heat Compass was updated on October 7, 2026 and Lightning Tracker & Thunder on October 14, 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.*