W4MSI Software

Software & Apps

Software developed for Amateur Radio operators, technical users, and practical real-world applications.

W4MSI
Available software

Current products

Select a product below to learn more, view features, and find the appropriate download or purchase option.

W4MSI Logger - Amateur Radio Logging for the Field
Android Amateur Radio POTA + TOTA Offline Field Logging

W4MSI Logger

Current Android release: 1.7.9

A field-focused Amateur Radio logger for everyday QSOs, Parks on the Air (POTA), Tiles On The Air (TOTA), and simultaneous multi-program activations. Built for practical field operation with extensive offline capability, GPS tools, ADIF/GPX export, and local backup.

  • General Amateur Radio log
  • POTA activations & P2P
  • TOTA activations & T2T
  • Simultaneous TOTA + POTA
  • Multi-operator contacts
  • Offline callsign lookup
  • Offline POTA park lookup
  • Downloadable offline maps
  • GPS Journey Recording
  • ADIF & GPX export
  • Backup & Restore
  • No account or advertising
View W4MSI Logger Google Play
Purchasing and downloads: Each product page will provide the correct installation, app-store, download, or purchase option for that specific product.
Built by W4MSI

One home for W4MSI software.

This page serves as the central catalog for software developed and published by W4MSI. As additional products are released, they can be added here without changing the overall structure of the site.

W4MSI • Software & Applications