Comparison

Contest Log Visualizer vs RUMlogNG2Go

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

Head to head
About

Contest Log Visualizer

This app allows users to download and visualize past contest log files from websites. It displays station activity by hour and band, supporting various major ham radio contests. Offline use is available for the last downloaded log.

Highlights
  • Download past contest logs
  • Visualize station activity by hour
  • Visualize station activity by band
  • Supports multiple major ham radio contests
  • Offline access for last downloaded log
  • Slide show and real-time modes
Features
Read full description

Download past contest log file from web site and display where station worked in specific hours and band. Currently available to download includes following contest and year, CQ WW SSB 2005 - 2019 CQ WW CW 2005 - 2019 CQ WW RTTY 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 CQ WPX SSB 2010, 2011, 2012, 2013, 2014, 2015, 2017, 2018, 2019 CQ WPX CW 2010, 2011, 2012, 2013, 2014, 2015, 2017, 2018, 2019 CQ WPX RTTY 2013, 2014, 2015, 2017, 2018, 2019 IARU (WRTC2014 test station) 2012, 2013 WRTC2014 Russian DX 2012 only In order to download public logs you need internet access and only last log downloaded is saved on your iPad for offline use. Use top left button to download specific log. Top right button enable you to choose slide show/real time mode. Use bottom slider to change time, bottom right button to move bands. If you use older iPad, "Show Line" with slide show mode or real time mode may not work well. If this is the case, try to use "Show Line" only with manual mode.

About

RUMlogNG2Go

This application serves as a contact logging tool for amateur radio enthusiasts. It allows users to manage their QSO logs, import and export data in ADIF format, and integrate with various online services for QSL confirmation and log uploads. Features include DXCC tracking, sunrise/sunset calculations, and DX cluster integration.

Highlights
  • Contact logging for amateur radio
  • ADIF file import and export
  • DXCC, heading, and distance calculations
  • eQSL and LoTW user identification
  • Integrated telnet DX cluster
  • Real-time Grayline Map
  • Transceiver data exchange
Features
Read full description

RUMlog is a contact logging tool for amateur radio, very similar and log file compatible to the Mac logger RUMlogNG. * Use the same log file on your Mac computer * 4 user definable logging fields * Exchange the logs via iTunes Filesharing, iCloud or Files * Import ADIF files via email, clipboard, iCloud or Files * Export ADIF files via email, clipboard, iCloud or Files * Log your QSOs up to 3cm * Logging includes DXCC, heading and distance calculations * eQSL and/or LoTW users will be identified during logging * Can save your current position into the Note field, useful for portable or mobile operation * Sunset and sunrise calculations * RUMlog keeps track of your worked and confirmed countries * Direct log upload to eQSL (iPad only) * Direct QSL download from eQSL * Direct QSL download from LoTW * Direct log/QSO upload to Club Log * Integrated telnet DX cluster, including a spot collector * DX cluster command macros * LoTW ans eQSL users are marked in a dx spot * Real Time Grayline Map, showing short and log path to the station * HamQTH.com and qrz.com integration * Basic data exchange with Elecraft, Icom, Kenwood and Yaesu transceivers using the Pigtail hardware (http://pignology.net) or a Bluetooth LE interface (iPad and few TRX only) * Full control panel for Elecraft K3, KX3 and KX2 (iPad only) * Direct IC-705 control over Bluetooth LE for iPad and iPhone * Work RTTY, PSK and CW using the Elecraft transceivers built in functions (iPad only) * DXCC table with counter (including Deleted DXCCs)

Screenshots

RUMlogNG2Go4 screens

Verdict

The call

The clearest difference is price: Contest Log Visualizer at Free against RUMlogNG2Go's $4.99. Contest Log Visualizer also leads on review sentiment (100% vs 74%) and rating (5.0 vs 4.7). RUMlogNG2Go's advantage is ratings volume (251 vs 1). On update cadence, 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

Contest Log Visualizer is free to download; RUMlogNG2Go costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Contest Log Visualizer holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: RUMlogNG2Go has 251 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Contest Log Visualizer's written reviews are positive against 74% of RUMlogNG2Go's.

UpkeepUpdate frequency

Contest Log Visualizer ships an update every 6 weeks, RUMlogNG2Go every 4 weeks. The most recent releases landed on September 15, 2026 and September 24, 2026 respectively.

Scorecard6 real differences · 4 level
Contest Log Visualizer versus RUMlogNG2Go: the parameters behind the verdict, then further details
ParameterContest Log VisualizerRUMlogNG2Go
PriceFree — better$4.99
Rating5.0 (1 ratings) — better4.7 (251 ratings)
Positive reviews100.0% of reviews — better73.5% of reviews
Number of ratings1251 — better
Update frequencyEvery 6 weeksEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPadiPhone, iPad — better
Requires iOS10.3 — better16.4
Further details — not scored
Size2 MB15 MB
Age rating4+4+
DeveloperKazunori WatanabeThomas Lindner, DL2RUM

Customer experience

Contest Log Visualizer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

RUMlogNG2Go

All ratings251 ratings
Positive91.6%
Neutral4.0%
Negative4.4%
Written reviews34 reviews
Positive73.5%
Neutral8.8%
Negative17.6%

In-app purchases

None

Contest Log Visualizer

No in-app purchases

None

RUMlogNG2Go

No in-app purchases

Questions

Is Contest Log Visualizer free?
Contest Log Visualizer is free to download, with no in-app purchases.
Is RUMlogNG2Go free?
RUMlogNG2Go costs $4.99, with no in-app purchases.
Which has better reviews, Contest Log Visualizer or RUMlogNG2Go?
Contest Log Visualizer is rated higher. Contest Log Visualizer averages 5.0 out of 5 from 1 ratings, while RUMlogNG2Go averages 4.7 from 251 ratings.
Do Contest Log Visualizer or RUMlogNG2Go have ads?
Neither Contest Log Visualizer nor RUMlogNG2Go shows ads.
Which is updated more often, Contest Log Visualizer or RUMlogNG2Go?
Contest Log Visualizer ships an update every 6 weeks, and RUMlogNG2Go every 4 weeks. Most recently, Contest Log Visualizer was updated on September 15, 2026 and RUMlogNG2Go on September 24, 2026.

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