Comparison

Arc+ vs Arc Calculator Pro

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

Head to head
About

Arc+

This utility app helps users calculate various dimensions of circular arcs, including radius, length, width, and height. It offers a simple interface where users input two known values to derive the rest. Additional features include a unit converter, result saving, and sharing capabilities.

Highlights
  • Calculate Radius, Length, Width, Height, Tangent
  • Input two known values to find others
  • Measurement units converter
  • Save results to favorites
  • Share calculations
Features
Read full description

Arc+ The Complete Circular Arc Calculator Calculates the Radius, Length, Width (chord), Height, Tangent How it works: Select two known values and type it in text boxes and click on ( = ) to get the required values. Features: Measurement units converter Save your results to a favorite list Share your results with others

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.

Screenshots

Arc+3 screens
Arc Calculator Pro4 screens

Verdict

The call

The clearest difference is review sentiment: Arc+ at 50% against Arc Calculator Pro's 0%. Arc+ also leads on price (Free vs $3.99) and update cadence (every 4 months vs every 41 months). Arc Calculator Pro's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Arc+ is free to download; Arc Calculator Pro costs $3.99 up front. Arc+ sells 1 one-off in-app purchase. Arc Calculator Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Arc+ ships an update every 4 months, Arc Calculator Pro every 41 months. The most recent releases landed on September 22, 2026 and September 15, 2026 respectively.

Scorecard5 real differences · 5 level
Arc+ versus Arc Calculator Pro: the parameters behind the verdict, then further details
ParameterArc+Arc Calculator Pro
PriceFree — better$3.99
Rating4.6 (113 ratings) — better—
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings113 — better—
Update frequencyEvery 4 months — betterEvery 41 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.1
Further details — not scored
Size4 MB2 MB
Age rating4+4+
DeveloperMohamed SaadImran Pinjara

Customer experience

Arc+

All ratings109 ratings
Positive89.0%
Neutral7.3%
Negative3.7%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

Arc Calculator Pro

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

Arc+

One-time1
  • Ad Blocker$4.99
None

Arc Calculator Pro

No in-app purchases

Questions

Is Arc+ free?
Arc+ is free to download, with in-app purchases available.
Is Arc Calculator Pro free?
Arc Calculator Pro costs $3.99, with no in-app purchases.
Do Arc+ or Arc Calculator Pro have ads?
Neither Arc+ nor Arc Calculator Pro shows ads.
Which is updated more often, Arc+ or Arc Calculator Pro?
Arc+ ships an update every 4 months, and Arc Calculator Pro every 41 months. Most recently, Arc+ was updated on September 22, 2026 and Arc Calculator Pro on September 15, 2026.

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