Comparison

Visual Trig Func vs gDraw

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

Head to head
About

Visual Trig Func

This app visually demonstrates trigonometric functions, making them easier to understand and calculate. It offers interactive tools for exploring values, viewing wave graphs, and accessing lists of trigonometric ratios. Ideal for students and educators seeking a clearer grasp of trigonometry.

Highlights
  • Visual trigonometric functions
  • Interactive radius and angle manipulation
  • Comprehensive lists of trig ratios
  • Wave graph visualizations
  • Adjustable values via text fields
  • Tap-to-check degree and value functionality
Features
Read full description

Do you know trigonometric functions? Or want to learn it? Generally it makes people to be complicated a little, but if you use Trig Func, this will help you to more easily understand! Also this app is easy/quick to confirm the value of trig functions, so I wish this is really useful for students, teachers, developers and more! *** Features *** - Visual trig functions! - Comfortable moving for calculations! - Great lists(sin,cos,tan,csc,sec,cot) - Images for the wave graphs *** How to use it *** [ Calc ] You can drag a radius line between 0 to 90 degrees, and if you do that, it will move to be based on "Radius" and "Angle". Also you can set any numbers up to text fields with segmented buttons. Such as if you edit Text1 with "X" button and Text2 with "Y" button, the triangle view will change to be based on "X" and "Y". Which means, there are 6 cases. ( Radius - Angle ) ( Radius - X ) ( Radius - Y ) ( Angle - X ) ( Angle - Y ) ( X - Y ) [ List ] No need to explain about it. Just scroll it. Oh, wait. You can change these values if you tap column names, like below... Degrees --- Radian sin --- csc(cosec) cos --- sec tan --- cot [ Wave ] There are 2 graphs, so if you tap the button of bottom right, the graph will change another one. (sin, cos, tan) --- (csc, sec, cot) Also you can tap anywhere for checking degrees and values. I hope this app helps you, even a little bit.

About

gDraw

Features
Read full description

Move! Move! It moves! You can draw and move your graphs! Setting invariables in the formula and changing the value, you can move your graphs freely! AMAZINGLY MANY KINDS OF GRAPHS! You can draw many kinds of graphs by setting function such as y=f(x), x=f(y), x=f(t) and y=g(t), f(x,y)=0, pole equation. MOVE GRAPHS! This is the greatest feature of this app! We prepared "m" as an invariable. You can change the value continuously and see the graph moving. Using this feature, you can see many interesting moves, such as simple oscillation, cycloid curve, synthesis of waves. ORIGINAL KEYBOARD! We prepared the original keyboard specialized for mathematical formulas. You can type mathematical formulas very easily. SEE MANY GRAPHS SIMULTANEOUSLY! You can set unlimited number of graphs and see them simultaneously. VERY CONVENIENT TOOL "com". By using this, you can draw line segments, circles, points and texts very easily. For example, you can draw a line segments by setting the starting point and the end point. MANY INTERESTING SAMPLES! You can load many interesting samples from “Load SampleCom”. They are not only interesting, but also help you to master this app. SAVE AND LOAD GRAPHS! You can save and load your original graphs! TAKE A PHOTO OF YOUR GRAPH! You easily take a photo of your graph by pushing “photo button”.

Screenshots

Visual Trig Func4 screens
gDraw4 screens

Verdict

The call

The clearest difference is price: Visual Trig Func at Free against gDraw's $1.99. gDraw's advantage is in-app purchases (none vs 1) and ads (none vs shown). On 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

Visual Trig Func is free to download; gDraw costs $1.99 up front. Visual Trig Func sells 1 one-off in-app purchase. gDraw asks for nothing beyond the download.

UpkeepUpdate frequency

Visual Trig Func ships an update every 5 months, gDraw every 2 months. The most recent releases landed on June 1, 2026 and May 19, 2026 respectively.

Scorecard5 real differences · 5 level
Visual Trig Func versus gDraw: the parameters behind the verdict, then further details
ParameterVisual Trig FuncgDraw
PriceFree — better$1.99
Rating1.0 (2 ratings) — better—
Positive reviews61.1% of reviews—
Number of ratings2 — better—
Update frequencyEvery 5 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.012.0 — better
Further details — not scored
Size4 MB7 MB
Age rating4+4+
Developeryukihiro fujitaJirou Fukuda

In-app purchases

1 purchases

Visual Trig Func

One-time1
  • [ Add Calculation 360! ] (You can calc trig functions for over 90 degrees.)$0.99
None

gDraw

No in-app purchases

Questions

Is Visual Trig Func free?
Visual Trig Func is free to download, with in-app purchases available.
Is gDraw free?
gDraw costs $1.99, with no in-app purchases.
Do Visual Trig Func or gDraw have ads?
Visual Trig Func shows ads; gDraw does not.
Which is updated more often, Visual Trig Func or gDraw?
Visual Trig Func ships an update every 5 months, and gDraw every 2 months. Most recently, Visual Trig Func was updated on June 1, 2026 and gDraw on May 19, 2026.

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