Trig Solver vs Slope Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trig Solver
This application calculates unknown sides and angles of both regular and right triangles. It supports various input combinations, including two sides and an angle, two angles and a side, three sides, or two sides and an angle for right triangles.
- Regular triangle solver
- Right triangle solver
- Calculate with 2 sides and an angle
- Calculate with 2 angles and a side
- Calculate with 3 sides
- Calculate with side and angle (right triangle)
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A Triangle Solver that has a regular triangle solver as well as a right triangle solver. Regular Triangle - Enter one of the following and hit Calculate: 2 sides and an angle 2 angles and a side 3 sides Right Triangle - Enter one of the following and hit Calculate: 2 sides a side and an angle
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
Screenshots
Verdict
The clearest difference is in-app purchases: Trig Solver at none against Slope Calculator's 1. Trig Solver also leads on review sentiment (74% vs 58%) and iOS requirement (9.0 vs 13.0). On price, rating, ratings volume and update cadence 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. Trig Solver asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.3 for Trig Solver against 4.3 for Slope Calculator. Both are backed by a comparable volume of ratings — 78 and 104 respectively. Written reviews are what separate them: 74% of Trig Solver's written reviews are positive against 58% of Slope Calculator's.
Trig Solver ships an update every 28 months, Slope Calculator every 14 months. The most recent releases landed on September 22, 2026 and September 16, 2026 respectively.
| Parameter | Trig Solver | Slope Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (78 ratings) | 4.3 (104 ratings) |
| Positive reviews | 74.1% of reviews — better | 58.3% of reviews |
| Number of ratings | 78 | 104 — better |
| Update frequency | Every 28 months | Every 14 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 8 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Creature Code Mobile, LLC | Phan Nhat Đang |
Customer experience
Trig Solver
Slope Calculator
Bugs and requests
Trig Solver
Reported bugs
12 issues- Calculator rounds to '7' and '0'
- Regular triangle calculations not correct
- Answers in the wrong place (angles reversed)
- App doesn't work anymore after update
- Can't see input in dark mode
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- Base hidden behind buttons on older phones
- Fails with small machining angles (gives 90 degrees)
- Wrong values under 'regular triangle'
- Returned wrong values for side angle side
- Incorrect values on irregular triangle
- Paid to remove ads but ads still present
- NaN results
Requested features
8 requests- Rotate the triangle
- Show the work/steps
- Add square root functionality
- Option to pay to remove ads
- Modify single value without reset
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- Graph resultant triangle
- Show more decimal places (3, 4, or 5)
- Add comma as decimal separator option
Slope Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Trig Solver
No in-app purchases
Slope Calculator
- Remove ads$1.99
Questions
Is Trig Solver free?
Is Slope Calculator free?
Which has better reviews, Trig Solver or Slope Calculator?
Do Trig Solver or Slope Calculator have ads?
Which is updated more often, Trig Solver or Slope Calculator?
Other comparisons
