Caldwell Precision Chronograph
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Description

The Ballistic Chronograph app is for use with the Caldwell line of Ballistic Chronographs supporting a 3.5mm line-out serial port.

Users running iOS 7 or greater

• When prompted “Caldwell Ballistic Precision Chronograph” Would Like to Access the Microphone - select OK.
• Please ensure that Settings -> Privacy -> Microphone -> Caldwell Ballistic Precision Chronometer is enabled (Access Granted).

Running the app with the setting disabled will result in no shots being seen even though the app is showing it as connected.

Users running version 1.14 or greater

• When prompted “Caldwell Ballistic Precision Chronograph” Would Like to Access the Camera - select OK.
• When prompted “Caldwell Ballistic Precision Chronograph” Would Like to Access Photos - select OK.
• Please ensure that Settings -> Caldwell Ballistic Precision Chronometer -> Camera is enabled (Access Granted).

Chrono G2 users running 1.17 or greater

To enable Bluetooth in the app. In the Chrono Settings - set Bluetooth enabled. If prompted - Turn on Bluetooth to Allow "Caldwell Ballistic Precision Chronograph" to Connect to Accessories. Select Settings. Turn on Bluetooth.

If prompted - Bluetooth is not enabled. Enable Bluetooth to continue. In Settings - Turn on Bluetooth.
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Screenshots

User Rating

2.28 out of 5

180 ratings in United States

5 star
27
4 star
24
3 star
15
2 star
20
1 star
94

Ratings History

Reviews

Does not work with newer iPhone

reabbott on

Worked with iPhone 7 after I bought lightning connector. Finally got a chance to use it again and showed connected but occasionally said it was not connected to iPhone 13. Seeing other reviews this has been an issue that devs refuse to fix. Had to use one shot at a time and record results. Basically a chunk of plastic without all the data perks now.

Will not connect with my iPhone 15 Pro

Jruelas73 on

I’ve tried everything to get shots read and it will not register any shots. The chronograph works great but the app is worthless to me at this point. (Got adapter for 3.5mm jack) still no luck connecting!

Does Not Work on iPhone

e197535 on

Connects to iphone via official apple lightning to 3.5mm headphone jack adapter, and recognizes device in app, but does not transmit any data.

Not soo much

bongocongaman on

Ithe app worked great until I updated to iOS 16 and 17. Now it does not send the data to my phone…

Not working

Slightly heated on

So far this has not worked I do have a brand new iPhone 15, and a brand new iPad. It’s not working on either one some of them. Other reviews seem like it may work on older phones and iPads. I hope Caldwell will get this issue fixed to where it will work on all devices. I think it would be very nice to be able to use the app to record averages and the shot groups. Come on Caldwell get your act together.

App doesn’t support newer iPhone OS

jrshaf on

Advertised the app all over the box. But it doesn’t work. UPDATE THE APP OR DON’T CLAM IT WORKS WITH IT !!!! Finally working without app. Found it is sensitive to amount of light coming in. So if there’s not enough light or too much ERROR or nothing shows up. By the time you finally get it to show a reading ur done shooting all ur ammo. Really disappointed with this “chronograph “ for as long as it’s been available one would think some of bugs would be worked out.

Doesn't work

Tired PA Student on

It won't pick up the chronograph via Bluetooth or plugged into my phone. Heaven forbid I have to write my velocities down. IPhone 13 mini.

New update fixed ios16 but lost old data

whatever!!!!!!!!! on

It now loads with ios16 and sees the chronograph but won’t record any data from the chronograph. Was a great product but it now is useless.

iPhone connections

iPhone Connection 12/27/23 on

On 12/27/23 I discovered that the adapter for iPhone to Chronograph was not working properly Never got the App to recognize the chronograph, connected indicator on app always Red Removed the connection at my iPhone and flipped it over and plugged it in, Indicator turned Green Repeating many times, Working one way, not the other Connection at iPhone bad or adapter connection bad, will mark adapter side that works and test in the field, Seems like the app should work now

App doesn’t work

diccfi on

Doesn’t work! Bought iPad adapter, but doesn’t recognize the Chronograph. iPad 102 OS 17.1.2. Real bummer.

Store Rankings

Ranking History

App Ranking History not available yet

Category Rankings

Chart
Category
Rank
Top Free
294
Top Free
450
Top Free
469
Top Free
493

Keywords

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App Info

Category
Sports
Publisher
Battenfeld Technologies Inc
Languages
English
Recent version
1.21 (1 year ago )
Released on
Jun 17, 2013 (11 years ago )
Last updated
4 weeks ago