Contest Logging Software Compared: N1MM+, N3FJP, and More

Contest logging software does more than record contacts. It tracks multipliers, calculates score in real time, controls your radio, checks dupes, integrates DX cluster spots, and generates Cabrillo files for submission. Choosing the right logger affects your contest performance and enjoyment.

N1MM+ (Windows — Free)

N1MM+ is the standard. More contest operators worldwide use it than all other loggers combined. It supports essentially every contest that exists.

Strengths:

• Supports 200+ contests with correct scoring, exchange formats, and multiplier tracking
• Full SO2R (Single Operator Two Radio) support
• Network support for multi-operator stations
• Integrated DX cluster with bandmap
• CW keying, voice keying (DVK), and digital mode integration
• Highly customizable window layout
• Regular updates when contest rules change
• Free — funded by donations
• Enormous user community

Weaknesses:

• Windows only (runs under Wine with varying success)
• Interface feels dated — dense, many windows
• Steep learning curve for new users
• Configuration can be overwhelming
• Radio setup requires understanding COM ports and baud rates

Best for: Serious contesters, multi-op stations, SO2R operators. If you're on Windows and contest regularly, this is the default choice.

N3FJP's Contest Logs (Windows — Paid)

N3FJP produces individual contest log programs for major contests plus a general-purpose Amateur Contact Log.

Strengths:

• Clean, intuitive interface — beginners productive immediately
• Excellent Field Day logger (arguably the best for casual groups)
• Network support for multi-op
• Very reasonable pricing ($8.99 per contest, $24.99 general logger)
• Active developer, responsive to bugs
• Perfect for clubs wanting simple Field Day logging

Weaknesses:

• Fewer supported contests than N1MM+
• Less sophisticated multiplier tracking
• Limited SO2R capability
• Windows only
• Buying separate programs for each contest adds up

Best for: Beginning contesters, Field Day operations, and operators who value simplicity over maximum features.

WriteLog (Windows — Paid)

WriteLog was the premium contest logger in the 1990s-2000s. Still works, still has loyal users, but market share has declined.

Strengths:

• Mature, stable codebase
• Good SO2R support
• Integrated RTTY demodulator
• Networking for multi-op

Weaknesses:

• Paid (~$50-75) competing against free N1MM+
• Development pace slowed
• Smaller user community means less help available
• Interface feels dated

Best for: Operators who've used it for years. Hard to recommend for new users when N1MM+ exists free.

SkookumLogger (macOS — Free)

For Mac users refusing Windows, SkookumLogger is a native macOS application by K1GQ with clean Mac-like design.

Strengths:

• Native macOS application (proper Cocoa, not a port)
• Supports major contests (CQ WW, WPX, ARRL SS, Field Day)
• SO2R capable
• DX cluster integration
• CW keying via USB
• Free

Weaknesses:

• macOS only
• Fewer supported contests than N1MM+
• Smaller community
• Radio support via hamlib (can be finicky)

Best for: Mac users serious about contesting without running a VM.

TR4W (Windows — Free)

A Windows port of the classic TR Log (DOS era). Preserves the keyboard-centric workflow veteran contesters love.

Strengths:

• Keyboard-driven, minimal mouse use
• Very fast data entry once learned
• Low resource usage
• Free and open source

Weaknesses:

• Text-based interface from the DOS era
• Steep learning curve for non-TR Log veterans
• Small, aging community
• Limited modern radio support

Best for: Veterans who loved TR Log. Not for new users.

CQRlog (Linux — Free)

Linux-native general logger with basic contest features.

Strengths:

• Native Linux
• General logging plus contest capability
• LoTW/eQSL/ClubLog integration
• Open source

Weaknesses:

• Contest features are basic
• No SO2R, limited multiplier tracking
• Not primarily a contest logger

Best for: Linux users who contest casually.

Decision Matrix

Essential Features Any Logger Needs

Dupe checking: Instant duplicate flagging. Working dupes wastes time and some contests penalize them.

Real-time score: Drives strategy. Should you stay on this band or hunt multipliers elsewhere?

Cabrillo export: Every contest submission uses Cabrillo format. Non-negotiable.

CAT control: Logger reads radio frequency and mode automatically. Manual entry is error-prone.

CW/voice messaging: Sending exchanges by hand is slow and tiring over 24-48 hour contests.

Setup Tips

Before the contest:

• Install and configure days ahead, not the night before
• Verify CAT control (frequency shows in logger)
• Test CW keying or voice memories
• Connect DX cluster, confirm spots appear
• Verify sent exchange is correct for the contest and your section/zone

During:

• Trust the dupe checker — enter calls fast
• Watch multiplier indicators — new mults worth working even on weak signals
• Use the bandmap for planning band changes
• Let the logger handle score, focus on operating

After:

• Review log for obvious errors (wrong exchanges, miscopied calls)
• Export Cabrillo, submit before deadline (usually 5-7 days post-contest)
• Upload to LoTW for confirmations

The Truth About Logger Choice

The best logger is the one you know well. A mediocre logger you can drive at full speed beats a superior one you're still figuring out mid-contest. If you're starting fresh with no habits, N1MM+ is correct for Windows. It's free, it's the standard, and learning it pays dividends across every contest you'll enter.