Par Timer vs GeoBallistics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Par Timer
Practice your shooting competition par times with this simple timer. Set your desired par time and choose from various start delay options to beat the clock. Designed for USPSA and IDPA shooters.
- Practice par times for USPSA/IDPA
- Adjustable par time
- Random, instant, or 3-second start delay
- Easy-to-use interface
- Large start/stop button
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Par can be used to practice par times for USPSA or IDPA. You set a par time and try to beat the clock, simple as that. Features: - Random, Instant, or 3 Second start delay. - Adjustable par time, to tenths of a second. - Very easy to use. - Large button to start/stop timer. To change the start time, simply tap it to toggle between 3 seconds, random, and instant. To change the par time, simply tap it to type in a new par time, or use the plus and minus buttons to adjust tenths. Make sure your phone is not muted and the sound is up to hear sounds. Note: Does NOT detect audible gunshots, this app is for timing purposes only.
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.
Screenshots
Verdict
The clearest difference is price: GeoBallistics at Free against Par Timer's $0.99. GeoBallistics also leads on update cadence (every 9 days vs every 17 months). Par Timer's advantage is in-app purchases (none vs 2) and chart position (#197 vs unranked). On review sentiment, ads, device support and iOS requirement 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
GeoBallistics is free to download; Par Timer costs $0.99 up front. GeoBallistics sells 2 one-off in-app purchases. Par Timer asks for nothing beyond the download.
Par Timer ships an update every 17 months, GeoBallistics every 9 days. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.
| Parameter | Par Timer | GeoBallistics |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 4.0 (239 ratings) — better |
| Positive reviews | 65.4% of reviews — better | 65.3% of reviews |
| Number of ratings | — | 239 — better |
| Update frequency | Every 17 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #197 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 113 MB |
| Age rating | 4+ | 4+ |
| Developer | Motus Apps LLC | Vortex Optics |
Customer experience
Par Timer
GeoBallistics
Bugs and requests
Par Timer
Not enough reviews yet to summarise bugs or 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
In-app purchases
Par Timer
No in-app purchases
GeoBallistics
- WINDmeter CompatibilityFree
- BallisticARC PRO$14.99








