# TMD Aviation vs TMD Lightning warning system

The clearest difference is update cadence: TMD Lightning warning system at every 2 months against TMD Aviation's every 18 months. TMD Aviation's advantage is iOS requirement (10.0 vs 12.4). 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 Aviation ships an update every 18 months, TMD Lightning warning system every 2 months. The most recent releases landed on September 30, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | TMD Aviation | TMD Lightning warning system |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 months** |
| Size | 50 MB | 101 MB |
| Requires iOS | **10.0** | 12.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Platinum Software (Pty) Ltd](https://appshunter.io/developer/1294644904) | [Thai Meteorological Department](https://appshunter.io/developer/904197426) |

## What reviewers say

### TMD Aviation

[App page](https://appshunter.io/ios/app/tmd-aviation/id1435500954)

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

**In-app purchases:** none


### TMD Lightning warning system

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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TMD Aviation free?

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

### Is TMD Lightning warning system free?

TMD Lightning warning system is free to download, with no in-app purchases.

### Do TMD Aviation or TMD Lightning warning system have ads?

Neither TMD Aviation nor TMD Lightning warning system shows ads.

### Which is updated more often, TMD Aviation or TMD Lightning warning system?

TMD Aviation ships an update every 18 months, and TMD Lightning warning system every 2 months. Most recently, TMD Aviation was updated on September 30, 2026 and TMD Lightning warning system on October 29, 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.*