Comparison

Graph Calc Plus vs World History Map

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

World History Map

Explore ancient civilizations and modern historical developments with detailed maps. This atlas covers regions from ancient Egypt and Babylon to the Roman Empire and the 15th-century global landscape. It's a practical tool for visualizing world history.

Highlights
  • Ancient civilization maps
  • Modern history maps (15th-1912)
  • Focus on West Asia and North Africa
  • Mediterranean and Roman Empire maps
  • Global historical development visualization
  • Clear display of historical events
Features
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The World History Atlas contains two parts: ancient history and modern history. Ancient history mainly includes maps of ancient civilizations in West Asia and North Africa starting around 3000 BC, such as ancient Egypt and ancient Babylon. It also includes historical maps of ancient Greece and countries along the Mediterranean Sea, as well as historical maps of the Roman Empire and the Byzantine Empire. The modern history part includes maps of the historical development of Europe, America, Africa, Asia, and Oceania from the 15th century to 1912. It freshly and clearly displays various famous events in the process of world history. It is a very practical tool for understanding the development process of world history.

Screenshots

Graph Calc Plus4 screens
World History Map4 screens

Verdict

The call

The clearest difference is price: World History Map at Free against Graph Calc Plus's $2.99. World History Map also leads on update cadence (every 9 months vs every 39 months). Graph Calc Plus's advantage is in-app purchases (none vs 7). 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

World History Map is free to download; Graph Calc Plus costs $2.99 up front. World History Map sells 7 one-off in-app purchases. Graph Calc Plus asks for nothing beyond the download.

UpkeepUpdate frequency

Graph Calc Plus ships an update every 39 months, World History Map every 9 months. The most recent releases landed on September 20, 2026 and June 1, 2026 respectively.

Scorecard3 real differences · 6 level
Graph Calc Plus versus World History Map: the parameters behind the verdict, then further details
ParameterGraph Calc PlusWorld History Map
Price$2.99Free — better
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 39 monthsEvery 9 months — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013.0 — better
Further details — not scored
Size1 MB711 MB
Age rating4+4+
DeveloperHeng Jia Liang跃伟 侯

In-app purchases

None

Graph Calc Plus

No in-app purchases

7 purchases

World History Map

One-time7
  • 1 X 10$0.99
  • 1 X 20$1.99
  • 1 X 30$2.99
Show 4 more
  • 1 X 40$3.99
  • 1 X 50$4.99
  • 1 X 60$5.99
  • 1 X 70$6.99

Questions

Is Graph Calc Plus free?
Graph Calc Plus costs $2.99, with no in-app purchases.
Is World History Map free?
World History Map is free to download, with in-app purchases available.
Do Graph Calc Plus or World History Map have ads?
Neither Graph Calc Plus nor World History Map shows ads.
Which is updated more often, Graph Calc Plus or World History Map?
Graph Calc Plus ships an update every 39 months, and World History Map every 9 months. Most recently, Graph Calc Plus was updated on September 20, 2026 and World History Map on June 1, 2026.

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