GeoBallistics vs CorroScan
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
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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.
CorroScan
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Point. Detect. Measure. CorroScan finds corrosion with on-device AI and measures its true area with LiDAR — geotagged, logged, and PDF-ready in seconds.CorroScan turns your iPhone into a corrosion inspection instrument. Point the camera at rusted steel: on-device AI outlines every corrosion patch live, and the LiDAR scanner measures its true surface area — no reference markers, no tape measures, no guesswork. DETECT — a corrosion-trained neural network segments patches in real time, with stable outlines that survive camera motion. Distance, angle and light guidance keep every capture reliable. MEASURE — LiDAR depth fused with the camera yields genuine surface area (cm²/m²) and span for each patch, with a stated tolerance. Multiple patches are measured individually and in total. LOCATE — every scan is geotagged with a site name, browsable on a map and in a searchable, filterable log. REPORT — generate clean A4 PDF defect reports with photo, outlines, measurements, GPS and capture conditions — ready to send from the field. FREE — 100 scans with full detection and measurement. Everything stays on your iPhone. CORROSCAN PRO (auto-renewable subscription, monthly or annual) — unlimited scans and PDF defect reports. 100% on-device: no account, no cloud, your data never leaves your iPhone. TEAMS — inspection companies equip their crews with organization seats, adding cloud sync and a web dashboard managed by the company. REQUIRES a LiDAR-equipped iPhone (iPhone 12 Pro or later Pro models). No ads, no tracking, no third-party analytics. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://corroscan.ai/privacy.html
Screenshots
Verdict
The clearest difference is update cadence: CorroScan at every 2 days against GeoBallistics's every 9 days. On price, ads, in-app purchases 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 and CorroScan sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.
GeoBallistics ships an update every 9 days, CorroScan every 2 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | GeoBallistics | CorroScan |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (250 ratings) — better | — |
| Positive reviews | 65.4% of reviews | — |
| Number of ratings | 250 — better | — |
| Update frequency | Every 9 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 147 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Vortex Optics | OFO Tech |
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
CorroScan
Not enough reviews yet to summarise bugs or requests.
In-app purchases
GeoBallistics
- WINDmeter CompatibilityFree
- BallisticARC PRO$14.99
CorroScan
- CorroScan Pro$14.991 Month
- CorroScan Pro (Annual)$149.001 Year
Questions
Is GeoBallistics free?
Is CorroScan free?
Do GeoBallistics or CorroScan have ads?
Which is updated more often, GeoBallistics or CorroScan?
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