Comparison

Arc+ vs WindowDraw

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

WindowDraw

Easily design professional door and window drawings with 3D effects in under a minute. Customize materials, colors, and choose from an extensive library of components to create various window types. Seamlessly collaborate across devices.

Highlights
  • One-minute professional drawings
  • Generated 3D effects
  • Cross-device collaboration
  • Customizable materials and colors
  • Extensive component library
  • Design various window types
Features
Read full description

Its intuitive interface allows even complete beginners to create professional door and window drawings within one minute, complete with generated 3D effects .Enables seamless collaboration across smartphones, tablets, and computers. Users can freely customize materials and colors for their designs. Equipped with an extensive library of frame components and sash components, the software empowers you to effortlessly design various window types, including arched windows, sliding sashes, and folding windows. The core design functionality is available for free. Auto-renewing Subscription Terms for Members - Monthly Continuous Subscription - Subscription Period: 1 month - Subscription Price: As shown on the user's subscription page - Payment: The monthly continuous subscription is an auto-renewing product. After the user confirms the purchase and makes the payment, it will be charged to the iTunes account. - Renewal: 24 hours before the expiration, the Apple iTunes account will deduct the fee. Once the deduction is successful, the subscription period will be extended for one subscription period. - Cancellation of Renewal: Open the "Settings" on your iPhone > Enter "iTunes Store & App Store" > Select "Apple ID" > Click "View Apple ID" > On the account settings page, click "Subscriptions" > Cancel the subscription. Privacy Policy: https://document.windowdraw.com/private_policy.html Membership Service Agreement: https://document.windowdraw.com/member_service_agreement_v2.html

Screenshots

Arc+3 screens
WindowDraw4 screens

Verdict

The call

The clearest difference is review sentiment: WindowDraw at 100% against Arc+'s 50%. WindowDraw also leads on update cadence (every 2 weeks vs every 4 months) and rating (4.9 vs 4.6). Arc+'s advantage is monetization model (free vs freemium) and ratings volume (113 vs 7). On price, ads, in-app purchases and device support 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

Both are free to download. Arc+ sells 1 one-off in-app purchase and WindowDraw sells 3 in-app purchases, starting at $9.90 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

WindowDraw holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Arc+ has 113 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 50% of Arc+'s written reviews are positive against 100% of WindowDraw's.

UpkeepUpdate frequency

Arc+ ships an update every 4 months, WindowDraw every 2 weeks. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.

Scorecard6 real differences · 4 level
Arc+ versus WindowDraw: the parameters behind the verdict, then further details
ParameterArc+WindowDraw
PriceFreeFree
Rating4.6 (113 ratings)4.9 (7 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings113 — better7
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size4 MB37 MB
Age rating4+17+
DeveloperMohamed Saad南昌工硕网络科技有限公司

Customer experience

Arc+

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

WindowDraw

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Arc+

One-time1
  • Ad Blocker$4.99
3 purchases

WindowDraw

Subscriptions1
  • MonthVip$9.901 Month
One-time2
  • Monthly Plan$6.99
  • Annual Plan$55.99

Questions

Is Arc+ free?
Arc+ is free to download, with in-app purchases available.
Is WindowDraw free?
WindowDraw is free to download, with in-app purchases available.
Which has better reviews, Arc+ or WindowDraw?
WindowDraw is rated higher. Arc+ averages 4.6 out of 5 from 113 ratings, while WindowDraw averages 4.9 from 7 ratings.
Do Arc+ or WindowDraw have ads?
Neither Arc+ nor WindowDraw shows ads.
Which is updated more often, Arc+ or WindowDraw?
Arc+ ships an update every 4 months, and WindowDraw every 2 weeks. Most recently, Arc+ was updated on September 22, 2026 and WindowDraw on September 19, 2026.

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