Comparison

Dev Calc Pro (Hex Dec Oct Bin) vs Visual Trig Func

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

Head to head
About

Dev Calc Pro (Hex Dec Oct Bin)

This app converts numbers between binary, octal, decimal, and hexadecimal bases on a single screen. It also displays color hex codes and RGB values. It is designed for developers and does not include scientific or unit conversion functions.

Highlights
  • Binary, octal, decimal, hexadecimal conversion
  • Color hex code and RGB display
  • Large 19-digit decimal display
  • Conversion reset toggle
  • No ads (Pro Version)
Features
Read full description

The Calculator for Developer ※What is for Pro Version: No Ad & Full Screen Developer Calc includes the following features: ■ Binary, octal, decimal, and hexadecimal in one screen ■ Color Hex code, RGB in one screen ■ The maximum value : 0x0FFF FFFF FFFF FFFF ■ The minimum value : 0xF000 0000 0000 0000 ■ The large 19-digit display of decimal ■ Conversion reset ON/OFF The following features are not included: (Just For Simple) ■ Scientific: trigonometric, hyperbolic, and logarithmic functions ■ Conversion: length, area, volume, speed, weight, temperature; unit arithmetic

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.

Screenshots

Dev Calc Pro (Hex Dec Oct Bin)4 screens
Visual Trig Func4 screens

Verdict

The call

The clearest difference is price: Visual Trig Func at Free against Dev Calc Pro (Hex Dec Oct Bin)'s $2.99. Visual Trig Func also leads on review sentiment (61% vs 43%). Dev Calc Pro (Hex Dec Oct Bin)'s advantage is rating (3.5 vs 1.0) and in-app purchases (none vs 1). On ratings volume, update cadence and 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; Dev Calc Pro (Hex Dec Oct Bin) costs $2.99 up front. Visual Trig Func sells 1 one-off in-app purchase. Dev Calc Pro (Hex Dec Oct Bin) asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Dev Calc Pro (Hex Dec Oct Bin) holds the better App Store score, 3.5 against 1.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews complicate that: 43% of Dev Calc Pro (Hex Dec Oct Bin)'s written reviews are positive against 61% of Visual Trig Func's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Dev Calc Pro (Hex Dec Oct Bin) ships an update every 7 months, Visual Trig Func every 5 months. The most recent releases landed on July 18, 2026 and June 1, 2026 respectively.

Scorecard7 real differences · 3 level
Dev Calc Pro (Hex Dec Oct Bin) versus Visual Trig Func: the parameters behind the verdict, then further details
ParameterDev Calc Pro (Hex Dec Oct Bin)Visual Trig Func
Price$2.99Free — better
Rating3.5 (2 ratings) — better1.0 (2 ratings)
Positive reviews42.9% of reviews61.1% of reviews — better
Number of ratings22
Update frequencyEvery 7 monthsEvery 5 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better14.0
Further details — not scored
Size6 MB4 MB
Age rating4+4+
DeveloperQQ TSUBASAyukihiro fujita

Customer experience

Dev Calc Pro (Hex Dec Oct Bin)

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews7 reviews
Positive42.9%
Neutral14.3%
Negative42.9%

Visual Trig Func

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews18 reviews
Positive61.1%
Neutral16.7%
Negative22.2%

In-app purchases

None

Dev Calc Pro (Hex Dec Oct Bin)

No in-app purchases

1 purchases

Visual Trig Func

One-time1
  • [ Add Calculation 360! ] (You can calc trig functions for over 90 degrees.)$0.99

Questions

Is Dev Calc Pro (Hex Dec Oct Bin) free?
Dev Calc Pro (Hex Dec Oct Bin) costs $2.99, with no in-app purchases.
Is Visual Trig Func free?
Visual Trig Func is free to download, with in-app purchases available.
Which has better reviews, Dev Calc Pro (Hex Dec Oct Bin) or Visual Trig Func?
Dev Calc Pro (Hex Dec Oct Bin) is rated higher. Dev Calc Pro (Hex Dec Oct Bin) averages 3.5 out of 5 from 2 ratings, while Visual Trig Func averages 1.0 from 2 ratings.
Do Dev Calc Pro (Hex Dec Oct Bin) or Visual Trig Func have ads?
Visual Trig Func shows ads; Dev Calc Pro (Hex Dec Oct Bin) does not.
Which is updated more often, Dev Calc Pro (Hex Dec Oct Bin) or Visual Trig Func?
Dev Calc Pro (Hex Dec Oct Bin) ships an update every 7 months, and Visual Trig Func every 5 months. Most recently, Dev Calc Pro (Hex Dec Oct Bin) was updated on July 18, 2026 and Visual Trig Func on June 1, 2026.

Other comparisons