Comparison

Graph Calc Plus vs HTML Sandbox 2

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

Head to head
About

Graph Calc Plus

Features
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Graph Calculator define the graph of [f] to be the graph of the equation y = f(x). So, the graph of a function if a special case of the graph of an equation. Features: ∙ Set individual line color. ∙ Show/Hide individual mathematical expression. ∙ Pinch to Zoom in/out Graph View. ∙ Pan to reposition Graph View. ∙ Add up to 22 mathematical expressions. ∙ Full screen preview. Graph Features: ∙ Custom background color for Graph. ∙ Custom grid color for Graph. ∙ Show/Hide Grid Lines/Minor Grid Lines. ∙ Show/Hide Axis Number. ∙ Show/Hide X-Axis. ∙ Show/Hide Y-Axis. ∙ Set Graph Line Width range from 0.5~5.0. Some of the most commonly used functions: y = mx + b y = x**2 [x²] y = x**3 [x³] y = sqrt(x) [√x] y = ln(x) y = log(x) y = sin(x) y = cos(x) y = tan(x) Standard Operators: + - addition and unary positive - - subtraction and negation * - multiplication / - division ! - factorial ** - pow, exponentiation sqrt(x) - square root cuberoot(x) - cubic root Standard parameters (constant): phi - returns the value of ϕ (the Golden Ratio). Also recognized as ϕ() pi - returns the value of π. Also recognized as π() pi_2 - returns the value of π/2 pi_4 - returns the value of π/4 tau - returns the value of τ. Also recognized as τ() sqrt2 - returns the value of the square root of 2 e - returns the value of e log2e - returns the value of the log base 2 of e log10e - returns the value of the log base 10 of e ln2 - returns the value of the log base e of 2 ln10 - returns the value of the log base e of 10 Standard Functions that take 1 parameter: sqrt() - returns the square root of the passed parameter log() - returns the base 10 log of the passed parameter ln() - returns the base e log of the passed parameter log2() - returns the base 2 log of the passed parameter ceil() - returns the passed parameter rounded up floor() - returns the passed parameter rounded down Trigonometric functions: sin(), cos(), tan() Their inverses (asin, acos, atan, atan2) Their reciprocals (csc, sec, cotan) The reciprocals of the inverses (acsc, asec, acotan) The hyperbolic variations of all the above functions (sinh, cosh, tanh, asinh, acosh, atanh, csch, sech, cotanh, acsch, asech, acotanh) The versine functions (versin, vercosin, coversin, covercosin, haversin, havercosin, hacoversin, hacovercosin, exsec, excsc, crd) dtor() - converts the passed parameter from degrees to radians rtod() - converts the passed parameter from radians to degrees Quick Start: 1. Tap on [+] button. 2. Change the equation of the line to y=3x+1 and see graphed. 3. You can also enter equations that are not solved for x e.g. x=2y+2 About Graph Calculator In mathematics, the graph of a function f is the set of ordered pairs (x,y), where f(x)=y. In the common case where x and f(x) are real numbers, these pairs are Cartesian coordinates of points in two-dimensional space and thus form a subset of this plane. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

About

HTML Sandbox 2

Create custom lock and home screens using HTML and various data sources like weather, battery, and calendar events. Download themes from a large community and receive support.

Highlights
  • Custom lock screen design
  • Custom home screen design
  • Integrate weather data
  • Integrate battery status
  • Integrate calendar events
  • Integrate RSS feeds
  • Community theme downloads
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The HTML Sandbox app is a productivity tool for the HTML Sandbox shortcut. With the shortcut you can create your own lockscreen and/or homescreen using e.g. weather data, battery status, calendar events, RSS-feeds and much more. Download the HTML Sandbox shortcut from the app. Join our iNNOVATION community with 18k+ members and download your favourite themes. Get 24/7 support from iNNOVATION community.

Screenshots

Graph Calc Plus4 screens
HTML Sandbox 24 screens

Verdict

The call

The clearest difference is price: HTML Sandbox 2 at Free against Graph Calc Plus's $2.99. HTML Sandbox 2 also leads on update cadence (every 5 days vs every 39 months). Graph Calc Plus's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.0). 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

HTML Sandbox 2 is free to download; Graph Calc Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Graph Calc Plus ships an update every 39 months, HTML Sandbox 2 every 5 days. The most recent releases landed on October 27, 2026 and October 21, 2026 respectively.

Scorecard4 real differences · 6 level
Graph Calc Plus versus HTML Sandbox 2: the parameters behind the verdict, then further details
ParameterGraph Calc PlusHTML Sandbox 2
Price$2.99Free — better
Rating—4.8 (51 ratings) — better
Positive reviews—84.6% of reviews
Number of ratings—51 — better
Update frequencyEvery 39 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better16.0
Further details — not scored
Size1 MB14 MB
Age rating4+4+
DeveloperHeng Jia LiangEric Roembach

In-app purchases

None

Graph Calc Plus

No in-app purchases

None

HTML Sandbox 2

No in-app purchases

Questions

Is Graph Calc Plus free?
Graph Calc Plus costs $2.99, with no in-app purchases.
Is HTML Sandbox 2 free?
HTML Sandbox 2 is free to download, with no in-app purchases.
Do Graph Calc Plus or HTML Sandbox 2 have ads?
Neither Graph Calc Plus nor HTML Sandbox 2 shows ads.
Which is updated more often, Graph Calc Plus or HTML Sandbox 2?
Graph Calc Plus ships an update every 39 months, and HTML Sandbox 2 every 5 days. Most recently, Graph Calc Plus was updated on October 27, 2026 and HTML Sandbox 2 on October 21, 2026.

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