Triangle Calc A vs PipeChecker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Triangle Calc A
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The fastest way to solve Right Triangles. Triangle Calc A is a minimalist and specialized tool for anyone who needs instant, accurate right triangle calculations. Designed for speed and precision, it eliminates complex menus so you can focus on your work. Key Features: ■ Specialized for Right Triangles: Just enter two known values to solve the rest: ・Two sides (Pythagorean theorem) ・One side and one angle (Trigonometry) ■ Instant Results: Get all sides, angles, Area, and Perimeter immediately. ■ Minimalist Interface: No distractions. Open the app, enter your numbers, and get the answer in seconds. ■ Professional Precision: High-accuracy calculations for engineering, construction, and education. Perfect for: ■ Construction & Carpentry: Calculating pitches, slopes, and framing layouts. ■ Engineering: Quick geometric verification on-site. ■ Education: A reliable companion for trigonometry homework.
PipeChecker
This tool assists HVAC, sanitary, and plant piping engineers in selecting optimal pressure piping sizes with simple operations. It streamlines the design process for piping equipment technicians.
- Optimal pressure pipe sizing
- Simplified operation
- For piping equipment technicians
- Supports HVAC, sanitary, and plant systems
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このプログラムは、空調・衛生・プラント等の配管設備技術者のためのツールです。簡単な操作で最適な配管(圧力配管)サイズを選択できます。
Screenshots
Verdict
The clearest difference is price: Triangle Calc A at $0.99 against PipeChecker's $7.99. PipeChecker's advantage is update cadence (every 4 months vs every 56 months) and iOS requirement (15.0 vs 26.0). On ads, in-app purchases 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
Triangle Calc A costs $0.99 and PipeChecker $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Triangle Calc A ships an update every 56 months, PipeChecker every 4 months. The most recent releases landed on September 10, 2026 and September 21, 2026 respectively.
| Parameter | Triangle Calc A | PipeChecker |
|---|---|---|
| Price | $0.99 — better | $7.99 |
| Positive reviews | — | 0.0% of reviews |
| Update frequency | Every 56 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | kohei yamane | AIR DESIGN, INC. |
In-app purchases
Triangle Calc A
No in-app purchases
PipeChecker
No in-app purchases
