# TMD Lightning warning system vs Lightning Tracker & Thunder

The clearest difference is update cadence: Lightning Tracker & Thunder at every 5 days against TMD Lightning warning system's every 2 months. TMD Lightning warning system's advantage is iOS requirement (12.4 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

TMD Lightning warning system ships an update every 2 months, Lightning Tracker & Thunder every 5 days. The most recent releases landed on September 30, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | TMD Lightning warning system | Lightning Tracker & Thunder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Size | 101 MB | 44 MB |
| Requires iOS | **12.4** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Thai Meteorological Department](https://appshunter.io/developer/904197426) | [Feynman EinsteinAI Note Taker OU](https://appshunter.io/developer/1782064427) |

## What reviewers say

### TMD Lightning warning system

[App page](https://appshunter.io/ios/app/tmd-lightning-warning-system/id1510905216)

**Features:** 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 TMD Lightning warning system free?

TMD Lightning warning system 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 TMD Lightning warning system or Lightning Tracker & Thunder have ads?

Neither TMD Lightning warning system nor Lightning Tracker & Thunder shows ads.

### Which is updated more often, TMD Lightning warning system or Lightning Tracker & Thunder?

TMD Lightning warning system ships an update every 2 months, and Lightning Tracker & Thunder every 5 days. Most recently, TMD Lightning warning system was updated on September 30, 2026 and Lightning Tracker & Thunder on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*