Ionaut — Ham Radio

HF propagation & DX tools

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Ionaut is a free companion for radio amateurs — the whole shack in one app, with no account, no ads and no tracking. PROPAGATION & SPACE WEATHER - Real VOACAP forecasts, band by band and hour by hour, from your QTH to any continent or a specific callsign - Live space weather from NOAA (solar flux, K-index, solar wind, X-ray) - D-layer absorption (D-RAP), a live ionosonde (foF2/MUF, GIRO), history graphs and solar images (SDO/SOHO) DX & ACTIVITY - Live spots (PSK Reporter) and the worldwide DX cluster - Watcher: push alerts on a DX-cluster match - Callsign lookup — country, zone and callbook SKY - Satellite passes incl. QO-100 and GNSS - Moon / EME with azimuth, elevation and phase - Azimuthal map with the grey line and aurora; world sun times OPERATING - Band plans by country and licence class - Contest calendar (HF & VHF) - Nearby repeaters with map and compass — including the Gulf and Oman TOOLS - Antenna length, SWR, coax loss, dB/power, Ohm's law, Maidenhead locator and bearing LEARN (for newcomers) - Q-codes, phonetics, RST, modes, antennas, the ionosphere, cables & connectors and a D-Star unit - A CW (Morse) trainer using the Koch method with spaced repetition and progress tracking Available in 46 languages. No account, no ads, no tracking. Ionaut is and stays free. If you'd like to support the project: ko-fi.com/reinerklohn 73!

  • 5.0
    out of 5
    1 Ratings

Bug fixes and polish • Right now line: a needed entity is only reported when the path from your location is actually open — no more 160 m headlines at midday. Spots from stations on your own continent count more. • New setting: "Bands for the Right now line". By default it uses the bands you have antennas for in your station profile. • DX page: when the path is closed, it tells you why and when it is worth a try. • Broadcast schedule: DRM broadcasts and Radio-Kurier's Europe frequencies are now marked. • Logbook: start time is shown and saved in UTC when editing; faster search; deleting from the detail view is stable. • The Bands page reloads when your location changes and no longer hangs while the server is calculating. • QRZ upload stops when there is no connection. • Many small fixes for time zones, audio and layout.

The developer, Reiner Wilhelm Klohn, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location
    • User Content
    • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
Reiner Wilhelm Klohn
Size
142.5 MB
Category
Utilities
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • iPad
    Requires iPadOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
  • Apple Watch
    Requires watchOS 10.0 or later.
Languages
English and German
Age Rating
4+
In-App Purchases
Yes
  • Generous tip ☕☕☕ $3.99
  • Nice tip ☕☕ $2.99
  • Small tip ☕ $0.99
Copyright
© 2026 Reiner Klohn