Arc Calculator Pro vs Bend deduction and Flat length
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Arc Calculator Pro
This utility app provides precise calculations for various arc measurements, including length, angle, radius, and area. It supports both millimeters and inches, making it ideal for fabrication and engineering tasks. The app is designed for high performance and offline use.
- Arc Length Calculation
- Arc Angle Calculation
- Arc Radius Calculation
- Arc Segment Area Calculation
- Arc Sector Area Calculation
- Supports mm and inches
- Offline functionality
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Arc Calculator is a professional engineering utility for calculating arc and circle geometry commonly used in fabrication, machining, engineering drawings, layout development, and workshop calculations. The app provides fast and accurate calculations for arc length, radius, angle, chord, sagitta, tangent height, segment area, and sector area using standard geometric formulas. Designed for engineers, fabricators, draftsmen, machinists, technicians, and students, Arc Calculator helps simplify everyday geometry calculations used for marking, layout, design verification, and fabrication work. App features: 1. No Internet Requirement. 2. No Irritating Ads. 3. Fabrication-friendly. 4. Higher Performance. Available Calculations • Arc Length • Arc Radius • Arc Angle • Arc Chord Length • Arc Depth / Sagitta • Arc Tangent Height • Arc Segment Area • Arc Sector Area Arc Length Calculator Calculate the length of an arc using the required radius and arc angle. Arc Radius Calculator Determine the radius of an arc from the available geometric dimensions. Arc Angle Calculator Calculate the included angle of an arc using the required arc dimensions. Arc Chord Calculator Calculate the straight-line chord length between the two endpoints of an arc. Arc Depth / Sagitta Calculator Calculate arc depth, also known as sagitta, for practical layout and fabrication applications. Arc Tangent Height Calculator Calculate tangent-related arc dimensions useful for fabrication marking and geometry calculations. Arc Segment Area Calculate the area enclosed by an arc and its corresponding chord. Arc Sector Area Calculate the area of a circular sector using the required radius and angle. Features • Multiple arc and circle geometry calculators • Accurate engineering formulas • Arc length and radius calculations • Arc angle and chord calculations • Sagitta / arc depth calculation • Tangent height calculation • Segment area calculation • Sector area calculation • Metric and Imperial unit support • Automatic unit conversion • Clear and easy-to-read results • Fast calculations • Simple professional interface • Works completely offline • No internet connection required Applications Arc Calculator is useful for: • Fabrication Layout and Marking • Sheet Metal Fabrication • Pressure Vessel Fabrication • Heat Exchanger Fabrication • Piping and Process Equipment • Engineering Drawings • Mechanical Engineering • Machining and Workshop Calculations • Industrial Layout Development • Design Verification Designed For • Mechanical Engineers • Fabrication Engineers • Design Engineers • Production Engineers • Draftsmen • Machinists • Workshop Technicians • Fabricators • Engineering Students Arc Calculator helps eliminate repetitive manual geometry calculations and provides quick, reliable results for practical engineering and fabrication work. Whether you are determining an arc length, finding a radius, calculating a chord or sagitta, checking an angle, or determining segment and sector areas, Arc Calculator provides a convenient geometry tool for everyday workshop and engineering applications.
Bend deduction and Flat length
This app calculates the bend deduction for sheet metal, determining the initial flat length needed for a finished part. It simplifies the process by eliminating trial and error for press brake operators, designers, and laser cutter operators, saving time and material.
- Calculate bend deduction
- Determine flat length
- Input interior angle
- Input flange lengths
- Input K factor
- Input inside radius
- Input material thickness
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One of the most common problems in bending is the calculation of bend deduction. Determining the size of the piece to be cut starting from the finished measurements is often done by trial and error, requiring a lot of additional work not only for the press brake operator but also for the designer and the laser cutter operator. Time and material are wasted on various tests before getting a reliable value. With this app, you quickly get the sheet metal bend deduction, and therefore the sheet metal blank initial flat length, from the finished part measurements. You only have to insert interior angle, flange lengths, K factor, inside radius, and material thickness.
Screenshots
Verdict
The clearest difference is price: Bend deduction and Flat length at $2.99 against Arc Calculator Pro's $3.99. On update cadence, ads, in-app purchases and monetization model 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
Arc Calculator Pro costs $3.99 and Bend deduction and Flat length $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Arc Calculator Pro ships an update every 41 months, Bend deduction and Flat length every 46 months. The most recent releases landed on September 15, 2026 and August 20, 2026 respectively.
| Parameter | Arc Calculator Pro | Bend deduction and Flat length |
|---|---|---|
| Price | $3.99 | $2.99 — better |
| Rating | — | 1.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 2 — better |
| Update frequency | Every 41 months — better | Every 46 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.1 | 15.6 — better |
| Further details — not scored | ||
| Size | 2 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Imran Pinjara | Bhavinkumar Satashiya |
Customer experience
Arc Calculator Pro
Bend deduction and Flat length
In-app purchases
Arc Calculator Pro
No in-app purchases
Bend deduction and Flat length
No in-app purchases





