Trigonometry calc vs Bend Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trigonometry calc
Calculate side lengths and angles in right-angled triangles using Pythagorean theorem and trigonometry functions. Learn basic trigonometry concepts. An optional premium version removes ads and unlocks a general triangle calculator.
- Calculate side lengths
- Calculate angles
- Pythagorean Theorem
- Trigonometry functions
- Learn simple trigonometry
- General triangle calculator (premium)
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Use Trigonometry Calc to calculate sidelengths and angles in the right angled triangle. By the help of Pythagorean Theorem and some trigonometry functions you can in this app calculate side lengths and angles in any right angled triangle. Learn simple trigonometry. •Math •Trigonometry •Pythagorean Theorem Trigonometry Premium Go ad-free forever and unlock the advanced General Triangle Calculator (SAS/SSA/ASA). Solve any triangle, not just right triangles
Bend Calculator
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Generate instant, mathematically perfect flat pattern layouts for complex geometric transitions. Bend Calculator is the ultimate iOS companion for sheet metal professionals, mechanical engineers, and fabricators. Engineered to eliminate tedious manual math, this app delivers instant, field-ready flat patterns for HVAC ductwork, custom welding, industrial piping, and architectural metal roofing. Whether you are at a desk or on the shop floor, get your dimensions in and your precise results out instantly. Core Calculations & Allowances • Cones & Frustums: Generate instant layouts for standard cones, plus parallel and angled eccentric frustums. • Truncated Cylinders: Map out precise cylindrical cuts effortlessly. • Bend Allowances: Compute exact bend deductions and allowances across any angle to ensure flawless folding every single time. Seamless Transitions • Rectangle & Circle: Calculate smooth, mathematically exact transitions for rectangle-to-circle (standard and eccentric). • Reverse Transitions: Effortlessly compute circle-to-rectangle and rectangle-to-rectangle ductwork intersections. Smart Tools for Modern Workflows • Save Your Calculations: Never lose track of a complex layout. Save your frequently used dimensions and access your history instantly for repeat jobs. • Light & Dark Mode: Engineered for comfort in any environment. Use a crisp, high-contrast light theme in the drafting room, or seamlessly switch to a sleek, eye-saving dark mode on the shop floor. The Professional's Choice • Frictionless Interface: A clean, modern iOS UI built for speed. No clunky menus—just rapid data entry and instant calculations. • Absolute Precision: Eliminate drafting errors, reduce costly material waste, and trust the math every time you make a cut. Stop drafting transitions by hand. Download Bend Calculator to bring speed, accuracy, and modern efficiency to your next fabrication project. Bend Calculator: Learn How to Draw offers auto-renewable subscriptions for access to premium content. • Payment will be charged to your iTunes account at confirmation of purchase • Subscriptions automatically renew unless turned off at least 24 hours before the end of the current period • Manage or cancel subscriptions in your iTunes & App Store account settings By using the app, you confirm that you acknowledge and accept our Privacy Policy and Terms of Use. Privacy Policy: https://sites.google.com/view/reva-desai/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ If you would like to use our App but have trouble affording it, please email us at reva.desai2000@gmail.com
Screenshots
Verdict
The clearest difference is ads: Bend Calculator at none against Trigonometry calc's shown. Bend Calculator also leads on update cadence (every 4 days vs every 3 months). Trigonometry calc's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price and in-app purchases 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. Trigonometry calc sells 1 one-off in-app purchase and Bend Calculator sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Trigonometry calc ships an update every 3 months, Bend Calculator every 4 days. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.
| Parameter | Trigonometry calc | Bend Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 10 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Bo Kalvslund | Reva Desai |
In-app purchases
Trigonometry calc
- Premium$0.99
Bend Calculator
- Pro Monthly Access$4.991 Month
- Pro Yearly Access$29.991 Year
Questions
Is Trigonometry calc free?
Is Bend Calculator free?
Do Trigonometry calc or Bend Calculator have ads?
Which is updated more often, Trigonometry calc or Bend Calculator?
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