Comparison

Classicalc calculator vs Flying Chalk

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

Head to head
About

Classicalc calculator

This calculator app offers instant calculations as you type, following the mathematical order of operations. It features unique piano sound themes and allows seamless continuation of calculations across iPhone and Apple Watch. Your equations are automatically saved for convenience.

Highlights
  • Instant calculation as you type
  • Mathematical order of operators
  • Cross-device continuity (iPhone/Watch)
  • Automatic equation saving
  • 14 piano sound themes
  • Copy result to clipboard
Read full description

Classicalc is a unique, the most classy calculator app on the App Store. It's designed to be beautiful and simple, but also… to sound amazing! Each color theme has its own, actual Grand Piano major scale! It's Chopin-awesome! Underneath it beautiful simplicity, there's some serious technology powering Classicalc: ## Instant Calculation calculates the formula as you type, so you never have to use the equals sign (=). We spare you one unnecessary tap at a time. ## Classicalc calculates result using mathematical order of operators (× ÷ + -) so if you would like to add 1 to 1 and then multiply the result by 2, you should write (1 + 1) × 2 instead of 1 + 1 × 2 ## You can start your calculations on your iPhone, then Continue on your Apple Watch, and the other way around. ## Your most recent equation is always saved, even if you shut the app. When you run it again, The formula is instantly there. ## 14 great-looking backgrounds with related actual Grand Piano major scales. Change colors and major scales on iPhone app (by pressing little diamond in top-left corner) to change colors on Apple Watch. ## In case the numbers bore you, you can always play a song. It's Chopin-awesome! *** Tips *** - long press "backspace" button to clear whole expression (you can also force touch on your Watch) - long press the result on your iPhone/iPad to copy it to the system clipboard

About

Flying Chalk

This app simulates the tactile experience of drawing with chalk on various surfaces. It offers realistic stroke physics, customizable boards, and tools for both educational tracing and creative drawing, all optimized for iPad and Apple Pencil.

Highlights
  • Realistic chalk stroke physics
  • Multiple drawing surfaces
  • Trace guides for step-by-step drawing
  • Layer support for diagrams
  • Color mixing and saving
  • Drawing library and sharing options
Features
Read full description

Chalk that behaves like chalk. Every stroke is stamped grain by grain — not traced with a smooth line. Flick your wrist and the stroke feathers and breaks up, the way a real stick skips across a board. Slow down and it packs in, dense and powdery. Press harder and it bites. Lay the Pencil over on its side and you get a broad, soft side-stroke — the same move a teacher uses to shade in a hillside. Built for iPad, in landscape, with Apple Pencil. FOR THE CLASSROOM Pick the surface the lesson needs: a classic chalkboard, a green board, a whiteboard, kraft and sketch paper, ruled and grid pages, a character practice grid for handwriting, Xuan paper, a music staff. Change the board and your drawing stays exactly where it was. Trace guides break a simple drawing into steps, so a class can follow along stroke by stroke — the point is the stroke order, not the finished shape. Shapes give you clean lines, arrows and polygons when you need a diagram instead of a doodle. Layers let you build a diagram up and peel it back. FOR KIDS It is just a board and a stick. Tap, draw, wipe it off. The trace guides turn into a quiet game: follow the guide line, finish the cat. THE THINGS PEOPLE COMPLAIN ABOUT - A tip that goes thin when you want it thin, and stays thin. - Pinch to zoom deep into the board and keep drawing at full grain. - Palm rejection. Rest your hand on the glass; only the Pencil writes. - The toolbar fades out the moment you put the Pencil down and comes back when you lift it. On a projector or a shared screen, what is on the board is all anyone sees. - Mix your own colors. They are still there tomorrow. KEEP AND SHARE Save a drawing to your works library and come back to it later, filed by date. Turn any board into a share poster, with a QR code if you want one, and send it to a class group or a parent. Chalk sound is there if you like it. Turn it off if you do not. The interface language is switchable inside the app. Everything happens on your iPad.

Screenshots

Classicalc calculator4 screens
Flying Chalk4 screens

Verdict

The call

The clearest difference is price: Flying Chalk at Free against Classicalc calculator's $0.99. Flying Chalk also leads on rating (5.0 vs 3.8) and update cadence (every 6 weeks vs every 20 months). Classicalc calculator's advantage is ratings volume (13 vs 1) and device support (5 vs 2). On ads and in-app purchases 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

Flying Chalk is free to download; Classicalc calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Flying Chalk holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Classicalc calculator has 13 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Classicalc calculator ships an update every 20 months, Flying Chalk every 6 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard7 real differences · 3 level
Classicalc calculator versus Flying Chalk: the parameters behind the verdict, then further details
ParameterClassicalc calculatorFlying Chalk
Price$0.99Free — better
Rating3.8 (13 ratings)5.0 (1 ratings) — better
Positive reviews62.5% of reviews—
Number of ratings13 — better1
Update frequencyEvery 20 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod, Mac, Apple Watch — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size14 MB5 MB
Age rating4+4+
DeveloperLukasz KowalskiWeiyanda (Shanghai) Information Technology Co., Ltd.

Customer experience

Classicalc calculator

All ratings13 ratings
Positive69.2%
Neutral7.7%
Negative23.1%
Written reviews8 reviews
Positive62.5%
Neutral0.0%
Negative37.5%

Flying Chalk

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Classicalc calculator

No in-app purchases

None

Flying Chalk

No in-app purchases

Questions

Is Classicalc calculator free?
Classicalc calculator costs $0.99, with no in-app purchases.
Is Flying Chalk free?
Flying Chalk is free to download, with no in-app purchases.
Which has better reviews, Classicalc calculator or Flying Chalk?
Flying Chalk is rated higher. Classicalc calculator averages 3.8 out of 5 from 13 ratings, while Flying Chalk averages 5.0 from 1 ratings.
Do Classicalc calculator or Flying Chalk have ads?
Neither Classicalc calculator nor Flying Chalk shows ads.
Which is updated more often, Classicalc calculator or Flying Chalk?
Classicalc calculator ships an update every 20 months, and Flying Chalk every 6 weeks. Most recently, Classicalc calculator was updated on October 24, 2026 and Flying Chalk on October 25, 2026.

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