Valiance Backbone for CW Downloads & RevenueValiance Backbone for CW - VBC · App Store
モールスデコーダ CW勇気の源 VBC
Valiance Backbone for CW - VBC is #188 in Utilities Paid in Japan and charting in 1 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperNob
CategoryUtilities
Price600 JPY
Released
Rating★ 4.9 (20)
Version1.60.0
Age rating4+
First seen by us
21 Oct 2026
21 Oct 2026Installs (est.)1k+ worldwide
Valiance Backbone for CW - VBC update history & changes
Last change · 3 events since 28 Jun 2012Full timeline ↓Full timeline · 3 events
- 🆕Valiance Backbone for CW - VBC first spotted by AppInsider#140 in Top Paid · All Apps · Japan
- 📦Valiance Backbone for CW - VBC version 1.60.0Morse Decoder VBC Ver. 1.60 — Update Details
1. New Features & Content
Added sample audio: Practice materials now include realistic QSO simulation audio, created with permission from the original counterpart station operator at the time.
Official iPad support: Optimized for the iPad’s larger display. Font size options have been expanded to up to four levels to improve readability.
Development support feature: Added a donation menu to support ongoing app development.
2. Usability & UI Improvements
Reworked log submission flow: The send button has been moved from the settings screen to the toolbar for quicker access.
Added a submission completion message to clearly indicate execution results.
Improved audio file selection: File list is now sorted by newest first.
Selection highlight color changed to blue for clearer visual identification.
Optimized log viewing: Improved scrolling so past logs can be reviewed smoothly even during decoding.
Increased text size on the Help screen.
RUN button visibility optimized: Displayed only when needed to streamline the layout.
Design refresh: Updated layout and design of the settings, calibration, and font size buttons.
Improved data management:
Unified recording file name and timestamp format (yyyy/MM/dd HH:mm).
Optimized log save timing to occur on email sending or draft saving (logs remain in the device EEPROM until explicitly deleted).
3. Support & Fixes for Latest Devices
Optimization for latest devices: Introduced automatic layout calculation to maximize display area on newer iPhones without a Home button and with a notch (camera area).
App icon updates: Added icons in the latest required sizes to fix display issues on newer devices.
4. Bug Fixes
Calibration save fix: Resolved an issue where CAL1–CAL3 save destinations were misaligned, preventing CAL3 from being used.
Filter setting improvement: Fixed an issue where peak detection failed when “No filter specified” was selected. The filter is now set to an almost full-range width, enabling stable detection.… more - 🆕Valiance Backbone for CW - VBC released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.9 ★
20 ratings
Measured
Best rank now
#188
Utilities PaidMeasured
Valiance Backbone for CW - VBC on the App Store
App details
App ID
521096092
Publisher
Nobutomo Takagi
On the store since
Jun 2012
14 years on the store
Minimum OS
iOS 11.0+
iPhone 5s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN JA
Size
30 MB
Also listed in
Entertainment
Valiance Backbone for CW - VBC downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | UtilitiesPaid | #188 |
Apps near Valiance Backbone for CW - VBC on the chart
Utilities Paid, around #188.
Ratings
App Store, worldwide.
Rating
4.9 ★
20 ratings
Measured
Ratings
20
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.9★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Utilities apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Valiance Backbone for CW - VBC
Morse Decoder: Valiance Backbone for CW (VBC) VBC is the No. 1 Morse code decoder in the Japanese market, encompassing both paid and free categories.
This app allows you to decode Morse code using the built-in microphone of your iPhone or iPod touch. VBC utilizes the world's fastest FFT (Fast Fourier Transform) technology to detect and decode carriers. It is specifically designed to minimize false decodes from atmospheric noise, voices, or beep sounds (square or trapezoidal waves). While it will not decode vocalized "dit-dah" sounds, it offers an extremely high success rate for decoding actual transceiver signals. (Please check our videos of real DX station communications).
We believe its decoding capability surpasses that of many expensive dedicated hardware units and PC software. The carrier detection mode is highly effective, making it a truly practical tool for active hunting and pouncing in real-world radio operations.
The default settings are optimized for the best performance balance. We recommend testing it with an actual radio (800Hz tone) at a short distance using the default configuration.
Key Features:
Morse Sound Recorder & Player
Export text logs, audio data, and history via email
Timestamp and cancel stamp insertion in logs
Predictive decoding for difficult or connected Morse codes
Zero-in Tone Indicator / Shift-in Indicator
Tone frequency measurement (±5Hz)
Sound pressure measurement (dB)
Audio frequency response measurement & automatic correction
Peak search / Manual frequency setting (double-tap screen)
Automatic speed tracking / Manual speed setting (double-tap screen)
Auto Level / Auto Threshold / Manual Threshold (double-tap screen)
Noise reduction & waveform shaping via carrier detection
Japanese (Wabun) Morse support
Signal level adjustment
Input Level Over-Range Indicator When the input level exceeds the range (Over-Range), the waveform becomes distorted, leading to poor decoding accuracy. If this happens, please move your device further away from the radio. (Avoid placing the device directly on a vibrating radio; maintain a sufficient distance. The app is designed to decode accurately even from a significant distance.)Supports decoding speeds from 5 to 40 WPM
For more information and to see the app in action, please visit our YouTube channel for Real-DX videos and more:
http://goo.gl/ALXAqH
http://goo.gl/yEu3d1
http://goo.gl/7gp4yw
Note: Due to scrolling issues on the decode screen since iOS 8, we utilize the following library for text display. Our sincere thanks to the developer: SECoreTextView Created by kishikawa katsumi on 2015/03/25. Copyright (c) 2013-2015 kishikawa katsumi. All rights reserved.
This app allows you to decode Morse code using the built-in microphone of your iPhone or iPod touch. VBC utilizes the world's fastest FFT (Fast Fourier Transform) technology to detect and decode carriers. It is specifically designed to minimize false decodes from atmospheric noise, voices, or beep sounds (square or trapezoidal waves). While it will not decode vocalized "dit-dah" sounds, it offers an extremely high success rate for decoding actual transceiver signals. (Please check our videos of real DX station communications).
We believe its decoding capability surpasses that of many expensive dedicated hardware units and PC software. The carrier detection mode is highly effective, making it a truly practical tool for active hunting and pouncing in real-world radio operations.
The default settings are optimized for the best performance balance. We recommend testing it with an actual radio (800Hz tone) at a short distance using the default configuration.
Key Features:
Morse Sound Recorder & Player
Export text logs, audio data, and history via email
Timestamp and cancel stamp insertion in logs
Predictive decoding for difficult or connected Morse codes
Zero-in Tone Indicator / Shift-in Indicator
Tone frequency measurement (±5Hz)
Sound pressure measurement (dB)
Audio frequency response measurement & automatic correction
Peak search / Manual frequency setting (double-tap screen)
Automatic speed tracking / Manual speed setting (double-tap screen)
Auto Level / Auto Threshold / Manual Threshold (double-tap screen)
Noise reduction & waveform shaping via carrier detection
Japanese (Wabun) Morse support
Signal level adjustment
Input Level Over-Range Indicator When the input level exceeds the range (Over-Range), the waveform becomes distorted, leading to poor decoding accuracy. If this happens, please move your device further away from the radio. (Avoid placing the device directly on a vibrating radio; maintain a sufficient distance. The app is designed to decode accurately even from a significant distance.)Supports decoding speeds from 5 to 40 WPM
For more information and to see the app in action, please visit our YouTube channel for Real-DX videos and more:
http://goo.gl/ALXAqH
http://goo.gl/yEu3d1
http://goo.gl/7gp4yw
Note: Due to scrolling issues on the decode screen since iOS 8, we utilize the following library for text display. Our sincere thanks to the developer: SECoreTextView Created by kishikawa katsumi on 2015/03/25. Copyright (c) 2013-2015 kishikawa katsumi. All rights reserved.
Latest updates
1.60.0
Morse Decoder VBC Ver. 1.60 — Update Details
1. New Features & Content
Added sample audio: Practice materials now include realistic QSO simulation audio, created with permission from the original counterpart station operator at the time.
Official iPad support: Optimized for the iPad’s larger display. Font size options have been expanded to up to four levels to improve readability.
Development support feature: Added a donation menu to support ongoing app development.
2. Usability & UI Improvements
Reworked log submission flow: The send button has been moved from the settings screen to the toolbar for quicker access.
Added a submission completion message to clearly indicate execution results.
Improved audio file selection: File list is now sorted by newest first.
Selection highlight color changed to blue for clearer visual identification.
Optimized log viewing: Improved scrolling so past logs can be reviewed smoothly even during decoding.
Increased text size on the Help screen.
RUN button visibility optimized: Displayed only when needed to streamline the layout.
Design refresh: Updated layout and design of the settings, calibration, and font size buttons.
Improved data management:
Unified recording file name and timestamp format (yyyy/MM/dd HH:mm).
Optimized log save timing to occur on email sending or draft saving (logs remain in the device EEPROM until explicitly deleted).
3. Support & Fixes for Latest Devices
Optimization for latest devices: Introduced automatic layout calculation to maximize display area on newer iPhones without a Home button and with a notch (camera area).
App icon updates: Added icons in the latest required sizes to fix display issues on newer devices.
4. Bug Fixes
Calibration save fix: Resolved an issue where CAL1–CAL3 save destinations were misaligned, preventing CAL3 from being used.
Filter setting improvement: Fixed an issue where peak detection failed when “No filter specified” was selected. The filter is now set to an almost full-range width, enabling stable detection.