Comparison

trx vs SOTA Log

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

trx

Features
Read full description

trx-control is not a standalone app. It requires a trx-control(7) installation with a running trxd(8) daemon that has WebSockets enabled. The app connects to trxd(8) using a WebSockets and displays all transceivers and extensions that have been configured for client access. The trx-control app is mainly used by radio amateurs to operate transceivers and other hamradio related hardware. Please note that in order to use the callsign lookup feature, a valid QRZ.com subscription is needed.

About

SOTA Log

Log SOTA and POTA contacts quickly from the field with a single-field input for QSOs. Features live spotting, radio synchronization, and offline functionality for seamless operation.

Highlights
  • One-field QSO logging
  • Live SOTA/POTA spotting
  • Radio frequency and mode sync
  • SMS spotting without data
  • QRZ callsign lookup
  • ADIF log export
  • Offline operation
Features
Read full description

The fastest way to log SOTA and POTA contacts from the field. Type a callsign, hit Send, and you're ready for the next station. SOTA Log is built for operators who need speed on the summit, not menus, settings, or setup screens. ONE-FIELD LOGGING Type your entire QSO in a single field. Callsign, RST, frequency, mode, and references are parsed inline as you type. Frequency carries over. Mode derives from band. Everything you'd normally tap through just works. LIVE SPOTS Browse real-time SOTA and POTA spots filtered by program and mode. Tap a spot to prefill your QSO and tune your radio in one step. SOTACAT RADIO SYNC Connect to your Elecraft KX2, KX3, or KH1 for automatic frequency and mode sync, one-tap spot pouncing, and a CW keyer with six programmable macros. SOTAMAT SPOTTING Spot yourself via SMS with no cell data required. SOTA and POTA spots are sent through SOTAmat so chasers can find you even without internet. QRZ & ADIF Look up callsigns and sync your logs to QRZ Logbook. Export ADIF filtered for SOTA or POTA submissions. OFFLINE FIRST All logging works without internet. Reference databases, contact history, and activation progress live on-device. Network features enhance the experience but never gate it.

Screenshots

trx2 screens
SOTA Log4 screens

Verdict

The call

The clearest difference is update cadence: SOTA Log at fortnightly against trx's every 23 months. trx's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

trx ships an update every 23 months, SOTA Log fortnightly. The most recent releases landed on September 7, 2026 and September 20, 2026 respectively.

Scorecard2 real differences · 7 level
trx versus SOTA Log: the parameters behind the verdict, then further details
ParametertrxSOTA Log
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 23 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size20 MB6 MB
Age rating4+4+
Developermicro systemsChristopher Hunt

In-app purchases

None

trx

No in-app purchases

None

SOTA Log

No in-app purchases

Questions

Is trx free?
trx is free to download, with no in-app purchases.
Is SOTA Log free?
SOTA Log is free to download, with no in-app purchases.
Do trx or SOTA Log have ads?
Neither trx nor SOTA Log shows ads.
Which is updated more often, trx or SOTA Log?
trx ships an update every 23 months, and SOTA Log fortnightly. Most recently, trx was updated on September 7, 2026 and SOTA Log on September 20, 2026.

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