Tri vs Angle Finder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tri
This utility app provides the formula and value for calculating triangle properties. It's designed for quick access to mathematical formulas related to triangles.
- Triangle formula display
- Value calculation
- Quick access utility
- Mathematical formulas
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App to display a formula and value of a triangle.
Angle Finder
This app simplifies complex geometry and trigonometry calculations. It helps users find angles, side lengths, and areas of various shapes, serving as a portable math assistant for students and professionals.
- Triangle solver
- Angle finder
- PCD & chord calculator
- All-in-one geometry calculator
- User-friendly interface
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Angle Finder & Geometry Calculator – Your Complete Trigonometry Toolkit Master geometry and trigonometry with ease using our Angle Finder, Triangle Calculator, and Trigonometry Calculator app. Whether you’re a student, teacher, engineer, architect, or DIY enthusiast, this app simplifies complex calculations into quick, accurate results. What You Can Calculate: - Angles, side lengths, and hypotenuse of triangles (right, isosceles, scalene) - Arc radius, arc length, chord length, chord height, sector area, and segment area - Circumcircle & incircle diameters - PCD (Pitch Circle Diameter) for machining, flange making, and engineering projects - Geometry solutions for circles, squares, rectangles, pentagons, hexagons, and octagons Key Features: Triangle Solver – Instantly calculate area, perimeter, sides, and angles. Angle Finder – Measure and solve angles with precision. PCD & Chord Calculator – Perfect for engineering, fabrication, and design tasks. All-in-One Geometry Calculator – Covers a wide range of shapes and trigonometric functions. User-Friendly Interface – Intuitive, clean, and easy to navigate for fast results. Why Choose This App? Accurate & Reliable: Get instant solutions for your geometry problems. Time-Saving: No more manual formulas or long calculations. Educational & Practical: Great for both learning and real-world applications. Portable Math Assistant: Carry a complete trigonometry toolkit in your pocket. Whether you’re solving homework, working on technical designs, or just exploring geometry, this app is your go-to math assistant. Download Angle Finder – Trig & Geometry Calculator now and make geometry simple, fast, and fun. In app purchase included : Lifetime Premium Privacy policy : https://privacypolicy50.wordpress.com/privacy-policy-subscription/ Terms and condition :https://privacypolicy50.wordpress.com/terms-and-condition/
Screenshots
Verdict
The clearest difference is review sentiment: Tri at 100% against Angle Finder's 50%. Tri also leads on rating (5.0 vs 4.0) and in-app purchases (none vs 1). Angle Finder's advantage is ads (none vs shown) and update cadence (every 2 months vs every 12 months). On price and device support 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. Angle Finder sells 1 one-off in-app purchase. Tri asks for nothing beyond the download.
Tri holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Angle Finder has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Tri's written reviews are positive against 50% of Angle Finder's.
Tri ships an update every 12 months, Angle Finder every 2 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.
| Parameter | Tri | Angle Finder |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.0 (5 ratings) |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 1 | 5 — better |
| Update frequency | Every 12 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Thirdware.jp | Shital Gorasiya |
Customer experience
Tri
Angle Finder
In-app purchases
Tri
No in-app purchases
Angle Finder
- Lifetime Purchase$1.99
Questions
Is Tri free?
Is Angle Finder free?
Which has better reviews, Tri or Angle Finder?
Do Tri or Angle Finder have ads?
Which is updated more often, Tri or Angle Finder?
Other comparisons
