One setup, one session
Keep the station callsign, operator, grid, QSL message, and working context together - whether you are at home, /P, SOTA, POTA, or Field Day.
Android field logbook
Log the contact. Stay in the flow.
Sessions keep every operating setup organised. A ham-focused keyboard speeds up entry. Bluetooth keyer and Yaesu CAT support connect the log to the station around you.
Free Offline-first No ads CW / SSB / FM
FIELD SESSION // JN75XT 08:27 Z
QRQ KEYER 32 WPM FT-857 CAT
VFO A 14.250.00 MHz
20m 40m 2m SSB
UTCCALLRSTDXCC
08:21DL1ABC59 / 59DL
08:24IK3XYZ59 / 57I
08:26G4WJS59 / 59G
THEIR CALL W1AW
SENT59
RCVD59
LOG QSO
Sessions
Your operating context, not just a list of calls.
A home shack, a summit, an island, and a club activation are not the same station. Pocket QSO Logger keeps each one in its own session so the details and tuning you need are already there when the next call comes in.
NOW OPERATING Medvednica /P
18 QSOsLOG MAP OPER
LAST CONTACT // 08:26 Z G4WJS
59 / 59CALLF4
SENT59
RCVD59
Tuning that stays put
Band, mode, and frequency carry forward between contacts. Radio CAT can fill them directly from the rig.
LOG, MAP, OPER
Enter contacts, review the session on a map, edit its details, and export its QSOs without leaving the session.
Duplicate awareness
Get an advisory DUPE warning, optionally narrowed by band and mode, without blocking a valid contact.
Devices
The phone becomes part of the station.
Two independent Bluetooth links bring CW sending and radio tuning into the same logging flow. Connect only what you use; the logbook works normally without either device.
CW KEYER CONNECTED
Send without leaving the log.
Pair a 9A5N QRQ or Pico Keyer over SPP or BLE. Send the callsign and RST, adjust WPM, fire F1-F6 macros, or type Instant CW while the QSO form stays in front of you.
RADIO CAT ONLINE
Read the rig. Tune it back.
Yaesu FT-857/897 CAT keeps frequency and mode in step with the logger. Read the VFO into a QSO, or change band, frequency, and mode from the phone.
Map + Stats
See where the signal went - and when you were at your best.
CONTACT MAP // ALL TIME
Plot contacts from their grid square, with a DXCC centroid fallback, band-coloured markers, great-circle paths, filters, clustering, and direct access to QSO details.
ACTIVITY // LOCAL TIME
THIS YEAR 486 QSOs
CW41%
SSB46%
FM13%
Track totals, the last 24 hours, month and year, plus 12-month activity, band and mode distribution, and a 7x24 operating heatmap.
Field UI
Built for fingers, glare, and the next callsign.
A permanent digit row, portable suffix shortcuts, and a large log action keep the keyboard focused on radio work. Pick the dark Indoor palette, high-contrast Outdoor parchment, or let Auto follow the ambient light.
INDOOR OUTDOOR AUTO
Field essentials
Less admin between you and the next contact.
cty.dat + QRZ.com
Resolve country, DXCC, CQ and ITU zones locally. Add name, QTH, and grid from QRZ.com when you choose.
GPS to Maidenhead
Turn a one-shot location fix into a grid locator for your operator profile or a portable session.
Session ADIF export
Generate an ADIF file and send it through the Android share sheet to mail, Drive, Bluetooth, or your file manager.
Your log stays local
Logging, prefix resolution, statistics, the keyboard, keyer, and radio control keep working without a data connection.
Community
Operators helping operators.
Join the Pocket QSO Logger community — swap field reports and activation stories, get help with the app, and help shape what gets built next.
Open the forumReady when the band opens
Put the station in your pocket.
Free on Android. No ads. No account required to start logging.
FAQ
The practical questions.
What does Pocket QSO Logger cost?
It is free, with no ads, subscriptions, or in-app purchases.
Which modes are supported?
CW, SSB, and FM. The app is deliberately focused on live voice and CW operating rather than digital-mode automation.
What is a session?
A session groups contacts made from one operating setup. It keeps the station callsign, optional operator callsign, grid, QSL message, and sticky band/mode/frequency state together. Sessions can be closed, reopened, edited, mapped, and exported individually.
Which CW keyers are supported?
The current keyer workflow supports 9A5N QRQ and Pico Keyers over Bluetooth Classic/SPP or BLE. Once connected, you can send the callsign and report, adjust WPM, use six editable macros, and type Instant CW from the log.
Which radios support CAT control?
Yaesu FT-857 and FT-897 are currently supported through a Bluetooth serial adapter. Pocket QSO Logger can read frequency and mode from the radio and can also send frequency, band, and mode changes back to it.
Does it work offline?
The core logbook is offline-first. QSO entry, local cty.dat prefix lookup, stats, keyboard, Bluetooth keyer, and CAT control work locally. Google Maps, QRZ.com lookup, prefix updates, and the update check need a connection.
Can I export my log?
Yes. Each session can be exported as ADIF and handed directly to the Android share sheet. You can choose filename formats suited to common activation workflows or use a generic name.
Does it sync between devices?
There is no account-based cloud sync. Your working log remains on the device. Use session ADIF export or the JSON backup tools in Setup when moving data manually.
What does Auto theme do?
Auto uses the ambient-light sensor with hysteresis to move between the dark Indoor palette and the high-contrast parchment Outdoor palette. On a device without a light sensor it falls back to Outdoor.
Which Android versions are supported?
Android 8.0 or newer. Pocket QSO Logger is currently Android-only.