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 (2009 reticles!) and see holdovers at any magnification (see list of reticles supported here
3781 cartridges database
2420 bullets database and 687 G7 ballistic coefficient bullets database
516 air rifle pellets 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 WEATHERmeter
Skywatch BL weather meter support
Skywatch BL1000 weather meter support
Density Altitude support
Apple Watch support
Field-proven accuracy since 2007

What’s New

Version 6.59

Reticles added:
- EBR-7D MRAD, Razor HD Gen III 6-36x56 FFP, Vortex
- VPR MIL, EP5 5-25X56 FFP, Arken
- VPR MOA, EP5 5-25X56 FFP, Arken
- DWLR6, TANGO6T 1-6x24, Sig Sauer
- VCT-9, WT-F 3-12х44 FFP, Westhunter
- MIL-12, MR 3-12X42 FFP, T-Eagle
- MAR-154, 1-6x24 IR (HY1503-1), Marcool
- Ballistic Circle QuadPlex, Romeo4, Sig Sauer
- R6, Tube TL 50, InfiRay
- M27, Engerek 2-16x50, Berid

Ratings and Reviews

4.7 out of 5
378 Ratings

378 Ratings

JasonAVGuy ,

Absolutely Awesome!

As a long time Ballistic AE user I thought dealing with bugs and a clunky GUI were just par for the course with a solid calculator on my mobile device. I’m here to tell you I was so wrong. Strelok is simply awesome, super intuitive to operate, and very well developed. The work and dedication that goes into this app is second to none. Just take a look at the consistency of the development updates and responses. A few things that stand out to me are quick access to G7 data, easy export of reticles, and the ability to save firearms with the scope linked. Overall this is a huge improvement for me over Ballistic AE.

To list a few little things I have noticed.
Sometime when I select a different target it does not always come up In my reticle view. I would love the ability to default the whole app to MRAD but that’s a personal use case. Lastly I do prefer how the Ballistic AE outputs long skinny drop charts that are easy to print and laminate for range use and hunting use. These are such small issues. I give this app a easy 100% hands down!

Developer Response ,

Thank you for the kind words!
I will check my code about targets
On the main screen you can make long tap to dim out unnecessary results digits
You can export trajectory table to xls-file, open it with any spreadsheet editor and print


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.

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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