TriCalc – Triangle Solver
Auto-solve sides and angles
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Enter any combination of sides and angles, and Triangle Calculator instantly solves the missing values, draws the triangle,
and shows you the full results.
FEATURES
· Auto-solve from any valid input — sides (a, b, c) and angles (A, B, C)
· Calculates area, perimeter, and triangle classification (acute / right / obtuse, equilateral / isosceles / scalene)
· Supports multiple solving methods: Law of Cosines (SSS, SAS), Law of Sines (SSA, AAS/ASA)
· Detects and handles the ambiguous SSA case
· Real-time triangle visualization
PREMIUM (one-time purchase)
· Unlimited save & history — revisit any triangle anytime
· Ad-free experience
· Step-by-step solution with formulas
Whether you're studying trigonometry, working on a construction project, doing land surveying, or building a game, Triangle
Calculator gives you fast and accurate results.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
NEW: Premium just got a lot more powerful!
- Construction Overlays
Draw the incircle, circumcircle, altitudes and medians (centroid) right on your triangle.
- Advanced Analysis
Get heights, medians, angle bisectors, inradius and circumradius in one place.
- Both SSA Solutions
In the ambiguous case, switch between both possible triangles.
- Better Step-by-Step Solutions
See the Law of Cosines and Law of Sines worked out with your actual numbers.
- Copy Results
Copy all results in one tap and paste them into your notes or reports.
Premium is a one-time purchase with no subscrivery feature forever.
The developer, Keita Ogasawara, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Keita Ogasawara
- Size
- 23.6 MB
- Category
- Productivity
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Premium $4.99
- Copyright
- © Keita Ogasasawara