GeoBallistics vs GaugeWatcher
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GeoBallistics
This app provides advanced ballistics calculations for rifle shooting. It allows users to create unlimited rifle profiles, connect with weather hardware for atmospheric data, and build/save satellite imagery range cards. Features include a movers calculator, holdover calculator, and Coriolis effect auto-calculation.
- Unlimited Rifle Profiles
- Atmospheric Data Integration
- Satellite Imagery Range Cards
- Movers Calculator
- Holdover Calculator
- Advanced Ballistics Solver
- Coriolis Effect Auto-Calculation
Read full descriptionHide full description
About This App: GeoBallistics is a mobile app available for iOS devices and is compatible with Vortex Razor HD 4000 GB and Vortex Relay™ devices. The app allows users the freedom to build and create unlimited rifle profiles, connect with weather-hardware for onsite atmospherics, build/save/export satellite imagery range cards, and more. Key App Features: • Online Rifle Backup • Online Range Card Backup • Match Downloads • Shooting Range Downloads • Movers Calculator • First Ever Holdover calculator • Advanced Ballistics Solver • Comprehensive Bullet Library • Online weather access with station pressure • Free WeatherFlow hardware compatibility • Kestrel LiNK hardware compatibility (PRO version) • Shot-angle calculator • Shot-bearing calculator • Unlimited Rifle Profiles (PRO version) • Ability to save charts to camera roll (PRO version) • Ability to export charts as .csv (PRO version) • Ability to save/load satellite range cards for later use (PRO version) • Muzzle Velocity Truing • Coriolis effect auto-calculated with position and latitude The GeoBallistics mobile app is powered by the BallisticsARC (Ballistics, Atmospherics, and Range Card) solver, and combines the functionality of a ballistics calculator, an atmospheric device, and a GPS rangefinder into one application. The BallisticsARC solver is an advanced 3 DOF solver with provisions for MV vs Temp, Coriolis, spin drift, crosswind jump, moving targets, multiple targets with unique azimuths and angles and much more. GeoBallistics includes 4 modes: HUD Mode, Chart Mode, Map Mode, and Comp Mode. All modes are accessible with 1 custom rifle. In order to add additional rifles and save/export range cards, use Kestrel devices, or backup data online, you must upgrade to the PRO version for a one-time fee. HUD Mode puts everything you need on one screen for a single target. This is also where the moving target feature and max ordinate display is located. Chart Mode is a traditional calculator that allows for a complete solution. Solutions include considerations for gyroscopic drift, Coriolis effect, wind influence, shot angle, atmospheric conditions, and more. Chart Mode also allows FREE integration of the WeatherFlow products. Map Mode allows users to range targets by dropping pins on satellite imagery of a shooting location. Range and solution are displayed by tapping on the target pins. Map Mode also introduces external ballistic data overlays on satellite imagery. These overlays display a bullet's performance along its path according to parameters specified for each rifle profile. Comp Mode allows the user to enter a course of fire with multiple targets with unique variables such as shot angle and shot azimuth. Now features the Holdover Data Zero setting (HDZ) calculator. This is a first-in-class feature that allows you to easily set an optimal zero for holdover stages.
GaugeWatcher
Access real-time river flow data without needing an account or encountering advertisements. Discover nearby gauges, monitor flow rates, and save your preferred locations for quick access.
- Real-time river flow data
- Discover nearby gauges
- Check flow rates
- Bookmark favorite gauges
- No signup required
- Ad-free experience
Read full descriptionHide full description
Simple river flow data. No signup required. No ads. No fluff. Find nearby gauges, check flow rates, bookmark favorites. That's it.
Screenshots
Verdict
The clearest difference is rating: GaugeWatcher at 5.0 against GeoBallistics's 4.0. GaugeWatcher also leads on in-app purchases (none vs 2) and review sentiment (100% vs 65%). GeoBallistics's advantage is ratings volume (239 vs 3) and iOS requirement (16.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. GeoBallistics sells 2 one-off in-app purchases. GaugeWatcher asks for nothing beyond the download.
GaugeWatcher holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: GeoBallistics has 239 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 65% of GeoBallistics's written reviews are positive against 100% of GaugeWatcher's.
GeoBallistics ships an update every 9 days, GaugeWatcher weekly. The most recent releases landed on September 25, 2026 and September 1, 2026 respectively.
| Parameter | GeoBallistics | GaugeWatcher |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (239 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 65.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 239 — better | 3 |
| Update frequency | Every 9 days | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 113 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Vortex Optics | Andrew Althage |
Customer experience
GeoBallistics
GaugeWatcher
Bugs and requests
GeoBallistics
Reported bugs
3 issues- Unable to edit rifle profiles
- Inability to connect with Vortex rangefinder
- Crashes on launch for some users
Requested features
4 requests- Option to display ballistic charts in inches
- Support for reticles from other manufacturers
- Downloadable offline map data
- Apple Watch companion app
GaugeWatcher
Not enough reviews yet to summarise bugs or requests.
In-app purchases
GeoBallistics
- WINDmeter CompatibilityFree
- BallisticARC PRO$14.99
GaugeWatcher
No in-app purchases








