Comparison

Graphulator With Calculus vs Stopwatch Library

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

Head to head
About

Graphulator With Calculus

Features
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Graphulator is a numerical graphing calculator for 2 or 3 variable equations. Plot both functions and non-functions. Includes data output! Now includes numerical calculus. Scientific calculator. Trigonometry. Logarithms. Absolute values. Scientific notation. Basic Calculator. Function calculator. Two variable calculator. Three variable calculator. Numerical analysis. Drag grid or use controls to move or change the scale. Drag three variable grid to rotate. Graphulator can miss non-functions 1/50 the grid scale. The user can adjust the accuracy or change the grid scale including adjusting the width and height independently. Changing the accuracy requires upgrade. Graphulator boasts being the only calculator which can perform calculus on non-functions numerically (equations which cannot be reduced to a function). It should be noted that these derivatives differ from standard calculus. Graphulator boasts being the only numerical calculator which can plot three variable non-functions. (Equations of the form f(xyz) = f(xyz)). If you believe either of these claims to be untrue, let us know (contact@Graphulator.com).

About

Stopwatch Library

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Screenshots

Graphulator With Calculus3 screens
Stopwatch Library4 screens

Verdict

The call

The clearest difference is in-app purchases: Graphulator With Calculus at none against Stopwatch Library's 1. Graphulator With Calculus also leads on iOS requirement (8.0 vs 17.0). Stopwatch Library's advantage is update cadence (every 3 days vs every 2 months). On price, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Stopwatch Library sells 1 one-off in-app purchase. Graphulator With Calculus asks for nothing beyond the download.

UpkeepUpdate frequency

Graphulator With Calculus ships an update every 2 months, Stopwatch Library every 3 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard3 real differences ยท 3 level
Graphulator With Calculus versus Stopwatch Library: the parameters behind the verdict, then further details
ParameterGraphulator With CalculusStopwatch Library
PriceFreeFree
Update frequencyEvery 2 monthsEvery 3 days โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS8.0 โ€” better17.0
Further details โ€” not scored
Size79 MB5 MB
Age rating12+4+
DeveloperPaul TurmelNaoyuki Hasegawa

In-app purchases

None

Graphulator With Calculus

No in-app purchases

1 purchases

Stopwatch Library

One-time1
  • ๅบƒๅ‘Šใ‚’ๅ‰Š้™ค$2.99

Questions

Is Graphulator With Calculus free?
Graphulator With Calculus is free to download, with no in-app purchases.
Is Stopwatch Library free?
Stopwatch Library is free to download, with in-app purchases available.
Do Graphulator With Calculus or Stopwatch Library have ads?
Neither Graphulator With Calculus nor Stopwatch Library shows ads.
Which is updated more often, Graphulator With Calculus or Stopwatch Library?
Graphulator With Calculus ships an update every 2 months, and Stopwatch Library every 3 days. Most recently, Graphulator With Calculus was updated on October 26, 2026 and Stopwatch Library on October 25, 2026.

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