Chronograph Log1.7 - App Store
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Publisher Description
Chronograph Log was developed to record your bullet velocities, from your Chronograph, onto your iOS device. No more writing everything down on a pieces of paper to be lost in your range bag. When your friends ask about the loads you are using, you can pull out Chronograph Log and give them accurate info instead of guessing. Send them an email or message on the spot. Share your favorite loads via eMail, Facebook and more.
Chronograph Log was primarily developed for USPSA IPSC and IDPA, where Minor and Major Power Factors are very important. It will color code those entries based on their velocities. Note that the Power Factors can be ignored if you are tracking rifle loads or don’t care about Power Factors.
Note: This application is not a chronograph. You will need to enter readings from your chronograph into the Chronograph Log app.
. Define: Bullets, Guns and Powder in the database.
. Record velocities for each round from your chronograph.
. Automatically calculate Average, Min and Max velocities.
. Color coding to show each velocity’s Power Factor.
. Export full tables to Mail.
. Export favorite loads to Messages, Mail, Twitter or Facebook.
. Backup / Restore to Dropbox.
. Bluetooth integration with Competition Electronics "ProChrono Digital" using their "Digital Link" module.
Version History Updated HUD.
Update for Dark Mode. 1.7 10/28/2024 Updated Dropbox API 1.6 08/14/2021 - Corrected major and minor velocity diplay calculations.
- Removed Dropbox Sync due to Dropbox dropping the service.
- Added Online Backup & Restore to Dropbox.
- iOS fixes. 1.5 07/10/2018 - Added support for Competition Electronics ProChrono Digital - "Digital Link" Bluetooth module.
- Removed confirmation dialog when canceling with no changes.
- Added ability to disable Power Factor.
- iOS 8 fixes. 1.4 05/11/2015 Fixed update for calculated values 1.3 07/02/2014 Fixed a data-corruption issue when changing powder load a log column. 1.2 06/06/2014 - Added Standard Deviation statistics for velocity.
- Added Average, Maximum and Minimum Power Factors statistics to the table and exports. 1.1 05/31/2014 1.0 05/09/2014
About Chronograph Log
The company that develops Chronograph Log is On-Core Software LLC. The latest version released by its developer is 1.7.
To install Chronograph Log on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Chronograph Log as malware if the download link is broken.
How to install Chronograph Log on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Chronograph Log is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Chronograph Log is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 1.7
posted on 2026-10-14
Version History Updated HUD.
Update for Dark Mode. 1.7 10/28/2024 Updated Dropbox API 1.6 08/14/2021 - Corrected major and minor velocity diplay calculations.
- Removed Dropbox Sync due to Dropbox dropping the service.
- Added Online Backup & Restore to Dropbox.
- iOS fixes. 1.5 07/10/2018 - Added support for Competition Electronics ProChrono Digital - "Digital Link" Bluetooth module.
- Removed confirmation dialog when canceling with no changes.
- Added ability to disable Power Factor.
- iOS 8 fixes. 1.4 05/11/2015 Fixed update for calculated values 1.3 07/02/2014 Fixed a data-corruption issue when changing powder load a log column. 1.2 06/06/2014 - Added Standard Deviation statistics for velocity.
- Added Average, Maximum and Minimum Power Factors statistics to the table and exports. 1.1 05/31/2014 1.0 05/09/2014
version 1.7
posted on 2026-09-05
Version History Updated HUD.
Update for Dark Mode. 1.7 10/28/2024 Updated Dropbox API 1.6 08/14/2021 This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
- Corrected major and minor velocity diplay calculations.
- Removed Dropbox Sync due to Dropbox dropping the service.
- Added Online Backup & Restore to Dropbox.
- iOS fixes. 1.5 07/10/2018 - Added support for Competition Electronics ProChrono Digital - "Digital Link" Bluetooth module.
- Removed confirmation dialog when canceling with no changes.
- Added ability to disable Power Factor.
- iOS 8 fixes. 1.4 05/11/2015 Fixed update for calculated values 1.3 07/02/2014 Fixed a data-corruption issue when changing powder load a log column. 1.2 06/06/2014 - Added Standard Deviation statistics for velocity.
- Added Average, Maximum and Minimum Power Factors statistics to the table and exports. 1.1 05/31/2014 1.0 05/09/2014
version 1.7
posted on 2026-08-27
Version History Updated HUD.
Update for Dark Mode. 1.7 10/28/2024 Updated Dropbox API 1.6 08/14/2021 This update from Apple will improve the functionality of this app. No new features are included.
- Corrected major and minor velocity diplay calculations.
- Removed Dropbox Sync due to Dropbox dropping the service.
- Added Online Backup & Restore to Dropbox.
- iOS fixes. 1.5 07/10/2018 - Added support for Competition Electronics ProChrono Digital - "Digital Link" Bluetooth module.
- Removed confirmation dialog when canceling with no changes.
- Added ability to disable Power Factor.
- iOS 8 fixes. 1.4 05/11/2015 Fixed update for calculated values 1.3 07/02/2014 Fixed a data-corruption issue when changing powder load a log column. 1.2 06/06/2014 - Added Standard Deviation statistics for velocity.
- Added Average, Maximum and Minimum Power Factors statistics to the table and exports. 1.1 05/31/2014 1.0 05/09/2014
version 1.7
posted on 2024-10-28
Updated HUD.
Update for Dark Mode.
version 1.7
posted on 2024-10-28
Oct 28, 2024
Version 1.7
Updated HUD.
Update for Dark Mode.
version 1.6
posted on 2021-08-14
Aug 14, 2021 Version 1.6
Updated Dropbox API
version 1.5
posted on 2018-07-10
Jul 10, 2018 Version 1.5
- Corrected major and minor velocity diplay calculations.
- Removed Dropbox Sync due to Dropbox dropping the service.
- Added Online Backup & Restore to Dropbox.
- iOS fixes.
version 1.5
posted on 2018-07-10
Jul 10, 2018 Version 1.5
This app has been updated by Apple to use the latest Apple signing certificate.
- Corrected major and minor velocity diplay calculations.
- Removed Dropbox Sync due to Dropbox dropping the service.
- Added Online Backup & Restore to Dropbox.
- iOS fixes.
version 1.4
posted on 2014-05-09
version 1.5
posted on 1970-01-01
2018年7月10日 Version 1.5
- Corrected major and minor velocity diplay calculations.
- Removed Dropbox Sync due to Dropbox dropping the service.
- Added Online Backup & Restore to Dropbox.
- iOS fixes.
Disclaimer
Official App Store Link
We do not host Chronograph Log on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Apple and passed their terms and conditions to be listed there. We recommend caution when installing it.
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