Projectile Motion Calc vs Global Seismic Data
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Projectile Motion Calc
This physics calculator quickly determines key projectile motion parameters like horizontal and vertical velocity, time of flight, range, and maximum height. It supports various units and offers precise calculations up to 16 decimal places.
- Instant calculation of projectile motion parameters
- Copyable results to other apps
- Includes reference formulas
- Supports up to 16 decimal places
- Supports various input units
- Lightweight and optimized for everyday use
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Projectile Motion Calculator is a physics/math calculator designed to find Horizontal velocity, Vertical velocity, Time of flight, Range of the projectile, or Maximum height quickly and easily. Features: - Instant calculation - Results are copyable to other apps - Formulas are included as references - Supports up to 16 decimal places - Supports various units for each input - Lightweight app with a small size, optimized for everyday use Projectile motion is a form of motion experienced by an object or particle (a projectile) that is thrown near the Earth's surface and moves along a curved path under the action of gravity only (in particular, the effects of air resistance are assumed to be negligible). This curved path was shown by Galileo to be a parabola. The study of such motions is called ballistics, and such a trajectory is a ballistic trajectory. The only force of significance that acts on the object is gravity, which acts downward, thus imparting to the object a downward acceleration. Because of the object's inertia, no external horizontal force is needed to maintain the horizontal velocity component of the object. Taking other forces into account, such as friction from aerodynamic drag or internal propulsion such as in a rocket, requires additional analysis. A ballistic missile is a missile only guided during the relatively brief initial powered phase of flight, and whose subsequent course is governed by the laws of classical mechanics. Projectile motion equations: - Horizontal velocity component: vx = v * cos(θ) - Vertical velocity component: vy = v * sin(θ) - Time of flight: t = 2 * vy / g - Range of the projectile: R = 2* vx * vy / g - Maximum height: ymax = vy^2 / (2 * g) Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
Global Seismic Data
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The official Global Seismic Data app. Earthquakes are a global hazard which pose a threat to life and cause significant business interruption and social upheaval. Protect lives and reduce recovery costs by using our Structural Health Monitoring System. Visit www.gsdhq.io for more information. App features: • Structural Health Monitoring service for our customers • View large datasets of earthquakes and aftershocks • Receive customised notifications for earthquakes • Send felt reports or ‘I am safe’ messages to family/friends after an earthquake occurs
Screenshots
Verdict
The clearest difference is price: Global Seismic Data at Free against Projectile Motion Calc's $2.99. Global Seismic Data also leads on update cadence (every 8 months vs every 29 months). Projectile Motion Calc's advantage is device support (3 vs 1) and iOS requirement (13 vs 17.0). On ads and in-app purchases 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
Global Seismic Data is free to download; Projectile Motion Calc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Projectile Motion Calc ships an update every 29 months, Global Seismic Data every 8 months. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.
| Parameter | Projectile Motion Calc | Global Seismic Data |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 29 months | Every 8 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Nitrio | Global Seismic Data NZ Limited |
In-app purchases
Projectile Motion Calc
No in-app purchases
Global Seismic Data
No in-app purchases
Questions
Is Projectile Motion Calc free?
Is Global Seismic Data free?
Do Projectile Motion Calc or Global Seismic Data have ads?
Which is updated more often, Projectile Motion Calc or Global Seismic Data?
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