Slope Calculator vs TriangleData
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Slope Calculator
Calculate slope in angle, percentage, or ratio by inputting two sides of a right triangle. This intuitive and easy-to-use application provides the remaining necessary values.
- Calculate slope as angle
- Calculate slope as percentage
- Calculate slope as ratio
- Input two sides of a right triangle
- Calculate remaining triangle values
- Intuitive and easy to use
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Use this App to calculate slope (Angle, Percentage, Ratio). You just need to enter 2 of the 3 sides of a right triangle, we will calculate for you the remaining necessary numbers. This is a very intuitive App, simple and easy to use. Results are estimates for informational purposes only. We are very happy to serve you. If you have any requests, don't hesitate to contact us. - https://www.facebook.com/phan.nhatdang.3/ - phannhatd@gmail.com
TriangleData
This utility app helps you calculate triangle angles and data. It can determine if a corner is 90 degrees by taking measurements and inputting them into the app. You can also use it to calculate right triangle data.
- Calculate triangle angles
- Check for 90-degree corners
- Input measurements for calculation
- Calculate right triangle data
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Do you need to check it if a corner has 90 degree? Just take a measuring from the corner to some point on the first side, then do the same on another side and then, take a measuring between these points and pull all 3 measuring in to this app, the app will calculate all angles for you. Or you can just calculate right triangle data. Feel free to use it as you want.
Screenshots
Verdict
The clearest difference is review sentiment: Slope Calculator at 58% against TriangleData's 0%. TriangleData's advantage is in-app purchases (none vs 1) and update cadence (every 8 days vs every 14 months). On price, 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
Both are free to download. Slope Calculator sells 1 one-off in-app purchase. TriangleData asks for nothing beyond the download.
Slope Calculator ships an update every 14 months, TriangleData every 8 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.
| Parameter | Slope Calculator | TriangleData |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (104 ratings) — better | — |
| Positive reviews | 58.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 104 — better | — |
| Update frequency | Every 14 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Phan Nhat Đang | Kiryl Sabko |
Customer experience
Slope Calculator
TriangleData
In-app purchases
Slope Calculator
- Remove ads$1.99
TriangleData
No in-app purchases
Questions
Is Slope Calculator free?
Is TriangleData free?
Do Slope Calculator or TriangleData have ads?
Which is updated more often, Slope Calculator or TriangleData?
Other comparisons
