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

The clearest difference is review sentiment: Dev Calc Pro (Hex Dec Oct Bin) at 43% against Fisika's 0%. Dev Calc Pro (Hex Dec Oct Bin) also leads on rating (3.5 vs 2.0) and iOS requirement (8.0 vs 11.0). Fisika's advantage is price ($1.99 vs $2.99). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Dev Calc Pro (Hex Dec Oct Bin) costs $2.99 and Fisika $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Dev Calc Pro (Hex Dec Oct Bin) holds the better App Store score, 3.5 against 2.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 43% of Dev Calc Pro (Hex Dec Oct Bin)'s written reviews are positive against 0% of Fisika's.

Dev Calc Pro (Hex Dec Oct Bin) ships an update every 7 months, Fisika every 5 months. The most recent releases landed on July 18, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Dev Calc Pro (Hex Dec Oct Bin) | Fisika |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/dev-calc-pro-hex-dec-oct-bin/id638232609/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/fisika-physics-app/id1586848633/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | **42.9% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 months** |
| Monetization | Paid | Paid |
| Size | 6 MB | 70 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [QQ TSUBASA](https://appshunter.io/developer/568750169) | [Anas Abubakar](https://appshunter.io/developer/1581534101) |

## 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


### Fisika

[App page](https://appshunter.io/ios/app/fisika-physics-app/id1586848633)

Master physics, math, and engineering with this comprehensive iOS app. It offers intuitive tools for complex calculations, interactive simulations, and covers a wide range of physics topics from classical to quantum mechanics.

**Highlights:** Equations of Motion calculator, Newton's Laws of Motion tools, Projectile Motion solver, Fluid Mechanics calculations, Optics exploration, Thermodynamics tools, Electricity & Magnetism, Quantum Mechanics concepts, Interactive simulations

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## 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 Fisika free?

Fisika costs $1.99, with no in-app purchases.

### Which has better reviews, Dev Calc Pro (Hex Dec Oct Bin) or Fisika?

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 Fisika averages 2.0 from 1 ratings.

### Do Dev Calc Pro (Hex Dec Oct Bin) or Fisika have ads?

Neither Dev Calc Pro (Hex Dec Oct Bin) nor Fisika shows ads.

### Which is updated more often, Dev Calc Pro (Hex Dec Oct Bin) or Fisika?

Dev Calc Pro (Hex Dec Oct Bin) ships an update every 7 months, and Fisika every 5 months. Most recently, Dev Calc Pro (Hex Dec Oct Bin) was updated on July 18, 2026 and Fisika on September 9, 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.*