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

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.

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.

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.

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.

## The numbers

| Metric | Dev Calc Pro (Hex Dec Oct Bin) | Visual Trig Func |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/dev-calc-pro-hex-dec-oct-bin/id638232609/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/visual-trig-func/id645214237/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 42.9% of reviews | **61.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 5 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 6 MB | 4 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [QQ TSUBASA](https://appshunter.io/developer/568750169) | [yukihiro fujita](https://appshunter.io/developer/537078708) |

## What reviewers say

### Dev Calc Pro (Hex Dec Oct Bin)

[App page](https://appshunter.io/ios/app/dev-calc-pro-hex-dec-oct-bin/id638232609)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Visual Trig Func

[App page](https://appshunter.io/ios/app/visual-trig-func/id645214237)

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:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add Calculation 360!   (You can calc trig functions for over 90 degrees.) | $0.99 | one-time |


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*