Comparison

RUMlogNG2Go vs Ditdah

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

Head to head
About

RUMlogNG2Go

This amateur radio contact logging tool offers comprehensive QSO logging, DXCC tracking, and integration with various online services. It supports file exchange via iCloud and iTunes, and can exchange data with select transceivers.

Highlights
  • QSO logging with DXCC, heading, and distance calculations
  • Log file compatibility with Mac RUMlogNG
  • Exchange logs via iCloud, iTunes Filesharing, or Files
  • Import/Export ADIF files
  • eQSL and LoTW user identification
  • Integrated telnet DX cluster
  • Real-time Grayline Map
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)

About

Ditdah

Features
Read full description

Ditdah: Connect Through the Rhythm of Morse Code In a digital age, the most classic way of communicating returns to your smartphone. Ditdah is a unique space where you can go beyond typing text to learn the rhythm of Morse code and use it for meaningful communication. Key Features: - Real-time Morse Chat: Your text is instantly converted into Morse code. Feel the charm of messages delivered through sound and vibration. - Intuitive Learning: Perfect for beginners! Master Morse code systematically with our specialized training algorithms. - Guest Sign-in: Start immediately without complex registration using our seamless guest access. - Secure Authentication: Experience safe and reliable communication with Google Sign-In and robust privacy protection. - Personalized Settings: Tailor your experience by customizing audio feedback, UI themes, and more. Ditdah is perfect for those who: - Are looking for a unique and creative way to communicate. - Want to learn and master Morse code quickly and easily. - Miss the analog sensation in a digital messaging world. Download Ditdah now and immerse yourself in the mysterious world of dots and dashes!

Screenshots

RUMlogNG2Go4 screens
Ditdah4 screens

Verdict

The call

The clearest difference is price: Ditdah at Free against RUMlogNG2Go's $4.99. Ditdah also leads on iOS requirement (15.1 vs 17.6). 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

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

UpkeepUpdate frequency

RUMlogNG2Go ships an update every 4 weeks, Ditdah monthly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
RUMlogNG2Go versus Ditdah: the parameters behind the verdict, then further details
ParameterRUMlogNG2GoDitdah
Price$4.99Free — better
Rating4.7 (253 ratings) — better—
Positive reviews73.5% of reviews—
Number of ratings253 — better—
Update frequencyEvery 4 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size16 MB22 MB
Age rating4+4+
DeveloperThomas Lindner, DL2RUMDongEun Shin

Bugs and requests

RUMlogNG2Go

Reported bugs

17 issues
  • Date and time (UTC) fields not functioning properly
  • eQSL not working, incorrect password message
  • DX-CLUSTER without function, no response from Sysop
  • Will not download ADIF logs from onecloud
  • Local Time and UTC mixed, data converted to UTC
Show 12 more
  • Date display removed in recent updates
  • App crashes permanently (initially)
  • Logbook will not download ADIF logs
  • Cannot transfer log from iPad to QRZ.com
  • Cannot search logbook by other criteria
  • Does not flash up first name when adding call sign
  • Sync with RumLog NG on Mac requires copy-paste
  • ADIF import difficult, requires file type change and copy-paste
  • ADIF export option not available
  • Import from Dropbox does not import ADIF
  • Map not zoomable
  • Stopped working after update

Requested features

12 requests
  • Add K4D as rig option for TRX Control
  • Add AMP KPA1500
  • Add RT21-D Rotor Control
  • Search logbook by first name or town
  • Flash first name when adding call sign
Show 7 more
  • Auto-populate name and locator from QRZ
  • Pileup mode for iPad
  • Sync with RumLog NG on Mac without copy-paste
  • Integration with Hamlog.online
  • Export to iCloud Drive and/or MS OneDrive
  • Generic file import using file extension
  • Make map zoomable

Ditdah

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

RUMlogNG2Go

No in-app purchases

None

Ditdah

No in-app purchases

Questions

Is RUMlogNG2Go free?
RUMlogNG2Go costs $4.99, with no in-app purchases.
Is Ditdah free?
Ditdah is free to download, with no in-app purchases.
Do RUMlogNG2Go or Ditdah have ads?
Neither RUMlogNG2Go nor Ditdah shows ads.
Which is updated more often, RUMlogNG2Go or Ditdah?
RUMlogNG2Go ships an update every 4 weeks, and Ditdah monthly. Most recently, RUMlogNG2Go was updated on November 6, 2026 and Ditdah on October 31, 2026.

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