CalcThagoras Geometry Solver vs Tri
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CalcThagoras Geometry Solver
Easily calculate geometric shapes and bodies with step-by-step calculations. Features an intuitive interface, beautiful design, and the ability to draw figures with calculated values.
- Calculate geometric forms and bodies
- View step-by-step calculations
- Intuitive interface for easy input
- Draw figures with calculated values
- Supports triangles, circles, rectangles, cones, cuboids, and cylinders
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With CalcThagoras you can easily calculate geometric forms and bodies Features: • Calculate - Triangles - Circles - Rectangles - Cones - Cuboids - Cylinders • View the calculations, so you know exactly which steps were done for the result • Intuitive interface. Everything is done automatically, so you just have to enter the known values and the App will do its job. • Beautiful and light design, which makes CalcThagoras a joy to use • Draw figures with calculated values CalcThagoras is a useful utility every student should have installed on his iDevice.
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.
Screenshots
Verdict
The clearest difference is review sentiment: Tri at 100% against CalcThagoras Geometry Solver's 0%. Tri also leads on rating (5.0 vs 4.0) and in-app purchases (none vs 1). CalcThagoras Geometry Solver's advantage is ads (none vs shown) and update cadence (every 6 weeks vs every 12 months). On price, ratings volume 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. CalcThagoras Geometry Solver 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. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 0% of CalcThagoras Geometry Solver's written reviews are positive against 100% of Tri's.
CalcThagoras Geometry Solver ships an update every 6 weeks, Tri every 12 months. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.
| Parameter | CalcThagoras Geometry Solver | Tri |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 6 weeks — better | Every 12 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 8.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 7 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Marlon Trotzinski | Thirdware.jp |
Customer experience
CalcThagoras Geometry Solver
Tri
In-app purchases
CalcThagoras Geometry Solver
- Full Version$1.99
Tri
No in-app purchases
Questions
Is CalcThagoras Geometry Solver free?
Is Tri free?
Which has better reviews, CalcThagoras Geometry Solver or Tri?
Do CalcThagoras Geometry Solver or Tri have ads?
Which is updated more often, CalcThagoras Geometry Solver or Tri?
Other comparisons
