Trig Solver vs Arc+
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
Arc+
This utility app helps users calculate various dimensions of circular arcs, including radius, length, width, and height. It offers a simple interface where users input two known values to derive the rest. Additional features include a unit converter, result saving, and sharing capabilities.
- Calculate Radius, Length, Width, Height, Tangent
- Input two known values to find others
- Measurement units converter
- Save results to favorites
- Share calculations
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Arc+ The Complete Circular Arc Calculator Calculates the Radius, Length, Width (chord), Height, Tangent How it works: Select two known values and type it in text boxes and click on ( = ) to get the required values. Features: Measurement units converter Save your results to a favorite list Share your results with others
Screenshots
Verdict
The clearest difference is in-app purchases: Trig Solver at none against Arc+'s 1. Trig Solver also leads on review sentiment (74% vs 50%) and iOS requirement (9.0 vs 15.6). Arc+'s advantage is update cadence (every 4 months vs every 28 months) and rating (4.6 vs 4.3). On price, ratings volume, ads and monetization model 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. Arc+ sells 1 one-off in-app purchase. Trig Solver asks for nothing beyond the download.
Arc+ holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 78 and 113 respectively. Written reviews complicate that: 74% of Trig Solver's written reviews are positive against 50% of Arc+'s, so the app with the better star average is not the one people write more warmly about.
Trig Solver ships an update every 28 months, Arc+ every 4 months. Both last shipped on September 22, 2026.
| Parameter | Trig Solver | Arc+ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (78 ratings) | 4.6 (113 ratings) — better |
| Positive reviews | 74.1% of reviews — better | 50.0% of reviews |
| Number of ratings | 78 | 113 — better |
| Update frequency | Every 28 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 8 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Creature Code Mobile, LLC | Mohamed Saad |
Customer experience
Trig Solver
Arc+
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
Arc+
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Trig Solver
No in-app purchases
Arc+
- Ad Blocker$4.99
Questions
Is Trig Solver free?
Is Arc+ free?
Which has better reviews, Trig Solver or Arc+?
Do Trig Solver or Arc+ have ads?
Which is updated more often, Trig Solver or Arc+?
Other comparisons
