Opinions on Geoballistics app?

Small_Arms_Collector

Private
Minuteman
Sep 6, 2025
18
3
Michigan
I have a few different ballistics calculator apps that I have been playing with but the one that I am finding by far the easiest and most intuitive to use is the Geoballistics app, plus that is the only one I can get to pair with my Weatherflow meter. I’d love a Kestrel, but just can’t justify spending an extra $700 just for app pairing.

Anyway, what are your opinions on the app? How does it compare accuracy wise to Applied Ballistics quantum app and Hornady 4dof? Am I at any real disadvantage using the Geoballistics app?
 
I have a few different ballistics calculator apps that I have been playing with but the one that I am finding by far the easiest and most intuitive to use is the Geoballistics app, plus that is the only one I can get to pair with my Weatherflow meter. I’d love a Kestrel, but just can’t justify spending an extra $700 just for app pairing.

Anyway, what are your opinions on the app? How does it compare accuracy wise to Applied Ballistics quantum app and Hornady 4dof? Am I at any real disadvantage using the Geoballistics app?
AB Quantum, or an AB Kestrel, or anything AB really, allows use of AB CDMs (custom drag models) of many popular bullets , along with Personal Drag Models of the same bullets. That is the sauce that makes the dish. All the apps are using relatively basic math that is not difficult for geeks to calculate and write. Some are more user friendly, or have better features. The biggest hurdle is users who get lazy and religiously committed to some very basic app because they believe some self appointed guru, usually parroting buzz words from 2 decades ago, who is quietly sponsored by one of the big industry players. My young son calls it “fudd lore”.
 
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I use GB pretty much exclusively at the moment. Their interface and more importantly method of capturing and applying weather is the best out there in my opinion, and the solutions between solvers aren't different enough at the ranges I shoot to make a difference.

Strengths:
- Interface is straightforward
- Target cards are super easy to make and organize
- Organization of ammo/rifle profiles is fantastic. Folders are neat
- Wind and target vectors are all captured in absolute, meaning if you change the wind direction, it will update all wind values in your target card regardless of what direction each target is pointed. Other apps tend to operate in direction relative to target which becomes a huge annoyance when target directions can vary by 90+ degrees sometimes.

Weaknesses:
- Simplest and weakest solver between it, AB and 4DOF (haven't seen any major issues with it, but could easily see problems with longer ranges without some serious work and fudging)
- Mover speed only works in increments of a half mile an hour, and no calculator for mover speed like AB. *cough* come on VTX, fix this shit please
- Capturing direction of fire is not as intuitive as it is in AB quantum (They use the phone camera to capture DOF and cosine angle all at once)
- Super limited bullet profiles, you end up pulling BC data from another app
 
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