TropoDX is made and published by Martin Kuera. AppBrain is an independent app data site and isn't affiliated with Martin Kuera. The app name, icon, screenshots and description belong to Martin Kuera and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- June 30, 2026
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Releases
Updates seen on the App Store- Version
- 1.3
- Launched
- November 2025
No changelog data
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Technology
Found in the app by AppBrain- Price
- $1.99
- App size
- 2.61 MB
- Content rating
- High
Technologies used by TropoDX
About the app and developer
About TropoDX
TropoDX is an utilities app developed by Martin Kuera.
What is the rating of TropoDX?
TropoDX has no ratings yet.
Is TropoDX free?
TropoDX costs $1.99. The app size is 2.61 MB. The latest version available is 1.3. The last update was on June 30, 2026.
What are the requirements for TropoDX?
The app has a content rating of High Maturity. The app has been available on the App Store since November 2025.
Developer information for Martin Kuera
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Frequently asked questions about TropoDX
Is TropoDX free?
No. TropoDX costs $1.99 on the App Store.
Is TropoDX still available?
Yes. TropoDX is on the App Store, and the last update we saw was on June 30, 2026.
How large is TropoDX?
TropoDX is 2.61 MB.
Is TropoDX suitable for children?
App Store gives TropoDX a high maturity rating. It is meant for adults.
Who made TropoDX?
TropoDX was developed by Martin Kuera. It is listed in the utilities category on the App Store.
Store listing
By Martin Kuera, from the App Store
Description by Martin Kuera Written by the developer, not by AppBrain. Click to read.
FEATURES:
- Real-time Tropospheric Index (0-100 scale) based on atmospheric conditions
- 5-day propagation forecast with hourly updates
- Regional propagation maps for Europe, North America (East/West), Asia, and Australia/Pacific
- Push notifications for excellent DX conditions (Index 80+)
- Advanced atmospheric parameters: K-Index, Refractivity, Temperature-Dew Point spread
- Location-based weather data from anywhere in the world
- Detailed DX distance estimates based on current conditions
- Historical data tracking (last 48 readings)
- Support for both Metric and Imperial units
- Works on iPhone and iPad with landscape support
PERFECT FOR:
- VHF DXers (2m, 6m bands)
- UHF DXers (70cm band)
- Contest operators
- EME operators checking for optimal conditions
- Anyone interested in VHF/UHF propagation
UNDERSTANDING THE INDEX:
- 0-40: Poor - Normal conditions, local contacts only
- 40-55: Fair - Slightly enhanced propagation
- 55-70: Good - DX possible, 200-500 km range
- 70-85: Very Good - Strong DX, 500-1000 km range
- 85-100: Excellent - Extreme conditions, 1000+ km possible!
The app calculates tropospheric conditions using atmospheric pressure, temperature, humidity, dew point, and refractivity to predict VHF/UHF radio wave propagation. When high-pressure systems create temperature inversions, radio signals can travel much farther than normal - and TropoDX helps you catch those moments!
DATA SOURCES:
- Real-time weather data from OpenWeatherMap
- Regional propagation maps from DX Info Centre
- Scientific calculations based on radio refractivity formulas
Whether you're chasing grid squares, working DX contests, or just curious about propagation, TropoDX gives you the information you need to maximize your VHF/UHF operating.
73 and happy DXing!