Slope Calculation Tool vs Gravity Ballistics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Slope Calculation Tool
Calculate all aspects of a ramp's dimensions, including slope, run, length, and rise. It can also measure the slope of existing surfaces using your device's sensors. Supports various input combinations for flexible calculations.
- Calculate slope, run, length, and rise
- Supports multiple input combinations
- Measure existing surface slopes
- Uses device sensors for measurement
- Calculates slope as percentage, ratio, and angle
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With any (two inputs), the app will calculate all of ramp's information accurately: - Slope (incline). - Run (horizontal travel). - Ramp Length. - Rise (Height). - Slope (Percentage, Ratio & Angle). Possible scenarios of calculation: by adding any of the following inputs, the app shall calculates the rest: - Run & Rise. - Run & Length. - Rise & Length. - (Slope percentage, Slope Ratio or Slope Angle) with any of (Rise, Length or Run). The App has a built-in tool to measure the slope of an existing ramp or a surface, by using the capabilities of your iPhone / iPad device. * Remember to use a proper protection case though, to prevent your device from scratches and to give it a perfect flat shape, for better accuracy.
Gravity Ballistics
Calculate precise scope adjustments for sniper rifles using real shooting data. Input your measured bullet drop, and the app provides accurate corrections for various distances, simplifying the process without requiring extensive external information.
- Real shooting data input
- Precise scope adjustments
- Bullet drop calculation
- Simplified process
- No extra data inputs needed
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Gravity Ballistics is here to help you accurately calculate DOPE to scope your sniper rifle. This sniper rifle scope calculator stands out by using real shooting data. Shoot at a target, measure the bullet drop, input the data, and the app provides precise scope adjustments for various distances. Unlike traditional calculators requiring extensive input, this app simplifies the process by relying on actual shooting experience, eliminating the need for extra data inputs like weather or gun details.
Screenshots
Verdict
The clearest difference is price: Slope Calculation Tool at Free against Gravity Ballistics's $9.99. Slope Calculation Tool also leads on rating (4.3 vs 3.7) and update cadence (every 3 weeks vs every 21 months). On ads, in-app purchases, 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
Slope Calculation Tool is free to download; Gravity Ballistics costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Slope Calculation Tool holds the better App Store score, 4.3 against 3.7. That said, the two scores are not equally well evidenced: Slope Calculation Tool has 84 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 71% of Slope Calculation Tool's written reviews are positive against 50% of Gravity Ballistics's.
Slope Calculation Tool ships an update every 3 weeks, Gravity Ballistics every 21 months. The most recent releases landed on September 12, 2026 and September 22, 2026 respectively.
| Parameter | Slope Calculation Tool | Gravity Ballistics |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 4.3 (84 ratings) — better | 3.7 (13 ratings) |
| Positive reviews | 71.4% of reviews — better | 50.0% of reviews |
| Number of ratings | 84 — better | 13 |
| Update frequency | Every 3 weeks — better | Every 21 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 12 MB | 28 MB |
| Age rating | 4+ | 17+ |
| Developer | Riyad Habash | Sniper's Hide LLC |
Customer experience
Slope Calculation Tool
Gravity Ballistics
In-app purchases
Slope Calculation Tool
No in-app purchases
Gravity Ballistics
No in-app purchases
Questions
Is Slope Calculation Tool free?
Is Gravity Ballistics free?
Which has better reviews, Slope Calculation Tool or Gravity Ballistics?
Do Slope Calculation Tool or Gravity Ballistics have ads?
Which is updated more often, Slope Calculation Tool or Gravity Ballistics?
Other comparisons
