Comparison

Dev Calc Pro (Hex Dec Oct Bin) vs Fisika

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

Fisika

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
Read full description

Master Physics with the Ultimate iOS App for Students and Engineers! Dive into the world of physics, mathematics, and engineering with an app designed to simplify complex calculations and enhance your understanding. Whether you're exploring classical mechanics, tackling quantum mechanics, or solving problems in modern physics, this app is your go-to solution! Built with students in mind, this app offers a comprehensive and intuitive interface to make physics calculations effortless. Solve equations, explore interactive simulations, and access a variety of tools to tackle even the toughest challenges in science and engineering. Features Tailored for Success: ○ Equations of Motion: Effortlessly calculate displacement, velocity, and acceleration. ○ Newton’s Laws of Motion & Gravity: Simplify fundamental concepts with accurate tools. ○ Projectile Motion: Solve for trajectory, range, and time of flight. ○ Centripetal Force and Acceleration: Perfect for studying circular motion. ○ Fluid Mechanics: Dive into calculations for pressure, buoyancy, and flow. ○ Optics: Explore geometric and wave optics. ○ Thermodynamics: Understand heat, energy, and efficiency. ○ Electricity & Magnetism: Includes electromagnetic waves and circuits. ○ Quantum Mechanics: Tackle wave-particle duality and advanced concepts. ○ Interactive Simulations: Visualize physics principles for better understanding. ○ Engineering Physics Section: Tailored tools for engineering students. And much more!

Screenshots

Dev Calc Pro (Hex Dec Oct Bin)4 screens
Fisika4 screens

Verdict

The call

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.

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

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Dev Calc Pro (Hex Dec Oct Bin) versus Fisika: the parameters behind the verdict, then further details
ParameterDev Calc Pro (Hex Dec Oct Bin)Fisika
Price$2.99$1.99 — better
Rating3.5 (2 ratings) — better2.0 (1 ratings)
Positive reviews42.9% of reviews — better0.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 7 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better11.0
Further details — not scored
Size6 MB70 MB
Age rating4+4+
DeveloperQQ TSUBASAAnas Abubakar

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%

Fisika

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

In-app purchases

None

Dev Calc Pro (Hex Dec Oct Bin)

No in-app purchases

None

Fisika

No in-app purchases

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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