Ballistic Chronograph on your iOS device!

The best way of measuring an air guns power output without a an actual chronoscope!

Chrono Connect Mobile Lite will monitor the speed of pellets leaving your air gun, rifle, pistol and display the speed and power for you in your chosen speed and power units.

Lite version requires you to enter all pellet and distance details manually and will measure the speed of 3 shots at a time. Prove to yourself it works before going Pro!

Pro version includes many advanced features not in this Lite version including.
- Unlimited shots in one go ( no 3 shot 'Lite' limit ).
- Full list of shots in the string.
- Graph of shots in the string.
- Full shot and string management.
- Comprehensive pellet database ( no need to manually enter weights and BC values for most pellets )
- Comprehensive rifle and pistol database.
- Visual over power warnings.

Chrono Connect Mobile works by reading your gun firing a pellet over a known distance so all distances should be entered as accurately as possible to ensure accurate readings.

When set up and used properly, Chrono Connect Mobile can be within a few feet per second of a real chronoscope device.

This app was created because I have heard of people doing the following things to determine the power of their airguns when they don't have a chronograph.

- Shoot into a yellow pages and count how many pages were shot through.
- Shoot at the ground and measure the 'mushroom' of the pellet.
- Shoot a coffee can. Did it go through 1 or 2 sides?
- Shoot a soda can in various places, if it goes through X place its X power.

Chrono Connect Mobile is a far better way than any of these methods of determining the speed and power of your gun.

As there are variables that are beyond our control you should not rely on Chrono Connect Mobile as your sole method of recording speed and power and should test the power of your gun using a real chronoscope if in any doubt.

Ratings and Reviews

3 out of 5

10 Ratings

10 Ratings

Works great

Hellfish John

Seen this app on you tube and it works on my iPhone, only tried it at 10 yards worked fine💥🔫👍

Great app


3* just for making the app it will get 5* when I get it to work properly. I tested it on a bsa tactical xl and only got 2.8 ft/lb it only got test a month ago on a f1 at 11.4 so don't know but it worked perfect on a cp88 co2 pistol giving 3.2 ft/lb which is about wright.

It actually works!


It does work but you may shoot the screen on your iPad trying!


Andrew Lindsay
8.5 MB
Requires iOS 5.0 or later. Compatible with iPhone, iPad and iPod touch.
Age Rating
Rated 4+
© 2012


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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