This is a smart ballistic calculator. It can use G1, G7 and... custom drag-functions!
Can calculate trajectory without using ballistic coefficient!
You can select reticle from the list (1843 reticles!) and see holdovers at any magnification (see list of reticles supported here
3658 cartridges database
1835 bullets database
Can calculate spin drift, Coriolis effect, gyroscopic stability factor and vertical deflection of crosswind.
Internal barometer support
Vectronix Terrapin X rangefinder support
Kestrel Drop and Kestrel 5x00 support
Supports imperial and metric units.
Supports WeatherFlow WINDmeter
Supports WeatherFlow WEATHERmeter
Skywatch BL weather meter support
Skywatch BL1000 weather meter support
Density Altitude support

Field-proven accuracy since 2007

What’s New

Version 6.14

1. Bug fix for density altitude reading from Kestrel Drop
2. Bug fix iPad version reticle holdovers
3. Added reticles:
- JSD-MIL, 5-25x56 Tactical, Cabela's
- MRH-W2, DHF 5-20x56, Dedal, Russia
- MRH-W3, DHF 5-20x56, Dedal, Russia

Ratings and Reviews

4.7 out of 5
305 Ratings

305 Ratings


Best Ballistic App in the Industry

While there are a lot of great apps out there, with StrelokPro you have the ability to fine tune every variable to really true up your trajectory and know exactly what your projectile is doing. With many apps the process to get through the menu’s to update temperature on the fly is time consuming and one thing I love about Strelok is the ability to quickly Bluetooth atmospheric’s in via Kestrel Drop D3 and plot a new solution before the wind changes. There is a bit of a learning curve to understanding all the concepts that go along with long range shooting and Strelok is the easiest and most intuitive app on the market. The developer is very dedicated to offering support and the Strelok community in the Facebook forum is a great resource to learning the ins-and-outs and troubleshooting when you get stumped. If you want to get into long range shooting I cannot recommend StrelokPro enough. Best ballistic mobile app in the industry.

Developer Response ,

Thanks for the kind words, they motivate me to move on

Laengine ,

Own every iPhone ballistics app

This app is amazing in my opinion, because you can email Igor, get an answer back quickly, and see changes within a week; I also use other iPhone mobile calculators with our Kestrel AB Elite like ABMobile, Shooter, BallisticsAE, Trasol, Bullet Flight, and several other mobile apps including the Kestrel Link app that comes with the Kestrel, however I find Strelok Pro to be more repeatable with the Kestrel’s wind call Bluetooth integration. We are able to consistently get on target with various distances from 278 to 1015 yards with a 308, 6.5, 30-06 and 5.56. Again my best reasons is app support (being able to email Igor) and see a long list of additions/fixes/enhancements and new features added every year versus the competitors apps that get a few updates a year if lucky or if they have to, because it stops working when Apple changes something. Igor’s app is priceless.

ReviewerRob1 ,

Awesome Ballistics App

This is an awesome app! Whether you are new to shooting or have many years of experience, this app has features and convenience that cannot be beat. Instead of printing off charts at home and bringing them to the range, this app lets you calculate bullet drop at distance and wind holds in seconds. You honestly just have to use it to appreciate all the tools and features available. I’d pay twice as much for all the work the app has saved me at the range - with the price of ammo, a good ballistics calculator can save you hundreds of dollars worth of missed shots and guesswork. Remember, the quality of your calculations depends 100% on the quality of your input, so use this together with a chronograph for the greatest effectiveness.

Developer Response ,

Thank you for the kind words!

App Privacy

The developer, Igor Borisov, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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