Arc Calculator Pro vs Screw Flight Calculator
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.
Screw Flight Calculator
Calculate the flat pattern size for cutting blank plates for screw flight development and fabrication. This tool is essential for creating screw conveyors, ribbon blenders, and other process equipment.
- Calculate flat pattern size
- Input outside & inside diameter
- Input pitch and material thickness
- Calculate weight of material
- Includes radial cut element
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Screw Flight Calculator will give you handy Calculation of Screw Flight development. It will give you Flat pattern Size for Cutting Blank plate for development or fabrication of Screw flight. This app is very useful for those who are working in the field of Screw Conveyor or Ribbon Blender fabrication. In this App Input is Required Outside & Inside Diameter of Screw, pitch of flight, material thickness & specific gravity of material of Construction such as carbon steel, Stainless steel,Copper, Brass or Bronze material. This app Gives Output as Development Outside Diameter of raw Plate Circle & Inside Diameter of Circle so that it will be perfectly fit with shaft or pipe on which it will be going to weld after twisting of raw plate. It app includes addition Element of Radial Cut Required for flight development, but it is advisable to use full circle for Cutting. This app is also for those who are working in the field of fabrication of Pressure vessel, Heat ex-changer, Storage Tank, Agitator & Mixer and any other process equipment. this app also calculate the weight of material after cutting according to development.
Screenshots
Verdict
The clearest difference is update cadence: Screw Flight Calculator at every 17 months against Arc Calculator Pro's every 41 months. Screw Flight Calculator also leads on price ($1.99 vs $3.99) and iOS requirement (13.0 vs 16.1). On review sentiment, 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 Screw Flight Calculator $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Arc Calculator Pro ships an update every 41 months, Screw Flight Calculator every 17 months. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.
| Parameter | Arc Calculator Pro | Screw Flight Calculator |
|---|---|---|
| Price | $3.99 | $1.99 — better |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 41 months | Every 17 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Imran Pinjara | Kantaben Gorasiya |
Customer experience
Arc Calculator Pro
Screw Flight Calculator
In-app purchases
Arc Calculator Pro
No in-app purchases
Screw Flight Calculator
No in-app purchases
Questions
Is Arc Calculator Pro free?
Is Screw Flight Calculator free?
Do Arc Calculator Pro or Screw Flight Calculator have ads?
Which is updated more often, Arc Calculator Pro or Screw Flight Calculator?
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