Comparison

Arc Calculator Pro vs Arctan Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Arc Length Calculation
  • Arc Angle Calculation
  • Arc Radius Calculation
  • Arc Segment Area Calculation
  • Arc Sector Area Calculation
  • Supports mm and inches
  • Offline functionality
Features
Read full description

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.

About

Arctan Calculator

Features
Read full description

Welcome to the arctan calculator where you can quickly find arctan.

Screenshots

Arc Calculator Pro4 screens
Arctan Calculator3 screens

Verdict

The call

The clearest difference is price: Arctan Calculator at Free against Arc Calculator Pro's $3.99. Arctan Calculator also leads on update cadence (every 12 months vs every 41 months) and iOS requirement (13.0 vs 16.1). On ads, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Arctan Calculator is free to download; Arc Calculator Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Arc Calculator Pro ships an update every 41 months, Arctan Calculator every 12 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

Scorecard3 real differences Ā· 5 level
Arc Calculator Pro versus Arctan Calculator: the parameters behind the verdict, then further details
ParameterArc Calculator ProArctan Calculator
Price$3.99Free — better
Positive reviews0.0% of reviews—
Update frequencyEvery 41 monthsEvery 12 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.113.0 — better
Further details — not scored
Size2 MB43 MB
Age rating4+4+
DeveloperImran PinjaraStage Coding

In-app purchases

None

Arc Calculator Pro

No in-app purchases

None

Arctan Calculator

No in-app purchases

Questions

Is Arc Calculator Pro free?
Arc Calculator Pro costs $3.99, with no in-app purchases.
Is Arctan Calculator free?
Arctan Calculator is free to download, with no in-app purchases.
Do Arc Calculator Pro or Arctan Calculator have ads?
Neither Arc Calculator Pro nor Arctan Calculator shows ads.
Which is updated more often, Arc Calculator Pro or Arctan Calculator?
Arc Calculator Pro ships an update every 41 months, and Arctan Calculator every 12 months. Most recently, Arc Calculator Pro was updated on October 29, 2026 and Arctan Calculator on October 27, 2026.

Other comparisons