# thEarthquake Tracker vs Aviation Weather Decoder

The clearest difference is update cadence: Aviation Weather Decoder at every 4 weeks against thEarthquake Tracker's every 3 months. thEarthquake Tracker's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. thEarthquake Tracker sells 2 one-off in-app purchases and Aviation Weather Decoder sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

thEarthquake Tracker ships an update every 3 months, Aviation Weather Decoder every 4 weeks. The most recent releases landed on September 17, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | thEarthquake Tracker | Aviation Weather Decoder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/thearthquake-tracker/id1090616122/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 8 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ThirdHalf.com, LLC](https://appshunter.io/developer/914115418) | [阳 何](https://appshunter.io/developer/6777476774) |

## What reviewers say

### thEarthquake Tracker

[App page](https://appshunter.io/ios/app/thearthquake-tracker/id1090616122)

Stay informed about global seismic activity with real-time earthquake updates. Receive instant notifications when tremors occur, ensuring you're always aware of potential hazards.

**Highlights:** Real-time earthquake data, Global coverage, Instant notifications, Awareness of seismic events

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| thEarthQuake Remove Advertising | $0.99 | one-time |
| thEarthquake Tip Jar | $0.99 | one-time |


### Aviation Weather Decoder

[App page](https://appshunter.io/ios/app/aviation-weather-decoder/id6787396332)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Metar Decoder Premium | $0.99 | per month |


## Frequently asked questions

### Is thEarthquake Tracker free?

thEarthquake Tracker is free to download, with in-app purchases available.

### Is Aviation Weather Decoder free?

Aviation Weather Decoder is free to download, with in-app purchases available.

### Do thEarthquake Tracker or Aviation Weather Decoder have ads?

Neither thEarthquake Tracker nor Aviation Weather Decoder shows ads.

### Which is updated more often, thEarthquake Tracker or Aviation Weather Decoder?

thEarthquake Tracker ships an update every 3 months, and Aviation Weather Decoder every 4 weeks. Most recently, thEarthquake Tracker was updated on September 17, 2026 and Aviation Weather Decoder on September 18, 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.*