Comparison

Calculator X vs Dev Calc

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

Head to head
About

Calculator X

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Calculator X is a powerful calculator built for developers, students, and anyone who works with numbers beyond the basics. PROGRAMMER'S CALCULATOR Work seamlessly across decimal, binary, hexadecimal, and octal. Toggle individual bits directly on a 64-bit grid, perform bitwise operations (AND, OR, XOR, NOT), and watch all four bases update in real time as you type. 2D FUNCTION GRAPHING Plot any mathematical function of x instantly. Pan and pinch-to-zoom to explore the curve at any scale. Perfect for visualizing equations, finding intersections, and understanding function behavior. 3D SURFACE PLOTTING Enter any function of x and y and see it rendered as a live 3D surface. Rotate with one finger, zoom with a pinch, and pan with two fingers. Gradient coloring makes it easy to read the shape of any surface. MATRIX CALCULATOR Work with matrices up to 8×8. Perform addition, subtraction, multiplication, transpose, determinant, and inverse — all in one place. Results scroll so nothing gets cut off no matter how large your matrix is. ALL FEATURES FREE Every tool is available to every user, no subscription required.

About

Dev Calc

This app assists developers and programmers with immediate numeric conversions between binary, octal, decimal, and hexadecimal formats. It also provides tools for generating color codes from RGB, HSL, and HSV values, with a color picker and preset options.

Highlights
  • Numeric conversion (Bin, Oct, Dec, Hex)
  • Signed/Unsigned options
  • Adjustable bit sizes (8, 16, 32, 64)
  • RGB, HSL, HSV color code generation
  • Color picker
  • Preset color options
Features
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You can convert numeric to Bin, Oct, Dec, Hex immediately with Signed, Unsigned. ** Introduction ** This is a calculator app to help System Developers and Programmers. Convert numeric to binary, octal, decimal, hex immediately. You can set conversion bit number and signed/unsigned, so you can adjust settings for binary, short, int, long. Also you can get clolor code for system application from RGB and Color Picker. And you can choose preset color simply. ** Overview ** - Convert numeric to binary, octal, decimal, hex immediately. - You can edit each digits for detailed confirmation. - You can get color code from RGB, HSL, HSV and Color Picker. - Using preset color, you can get color code quickly. ** Characteristics ** >> Numeric conversion - You can input numeric in binary, octal, decimal, hex. - You can choose bits size from 8bits, 16bits, 32bits, 64bits. - You can choose signed numeric or unsigned numeric. - you can edit each digits directly. >> Color code - You can see a color code in Hex, RGB, HSL and HSV. - Support alpha channel of color. - You can get a color code from RGB, HSL, HSV adjuster and Color Picker. - You can get a color code just by choosing a preset color. ** Terms of Use ** https://coconutsdevelop.com/en/terms/terms_of_use.html ** Developer website ** https://coconutsdevelop.com/

Screenshots

Calculator X3 screens
Dev Calc4 screens

Verdict

The call

The clearest difference is in-app purchases: Calculator X at none against Dev Calc's 1. Calculator X also leads on update cadence (every 4 weeks vs every 2 months). Dev Calc's advantage is device support and iOS requirement (13.0 vs 15.6). On price 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

Both are free to download. Dev Calc sells 1 in-app purchase, starting at $1.99 per month. Calculator X asks for nothing beyond the download.

UpkeepUpdate frequency

Calculator X ships an update every 4 weeks, Dev Calc every 2 months. The most recent releases landed on September 18, 2026 and June 4, 2026 respectively.

Scorecard4 real differences · 6 level
Calculator X versus Dev Calc: the parameters behind the verdict, then further details
ParameterCalculator XDev Calc
PriceFreeFree
Rating—2.0 (2 ratings) — better
Positive reviews—60.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 4 weeks — betterEvery 2 months
Ads—Yes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
Devices—iPhone, iPad, iPod — better
Requires iOS15.613.0 — better
Further details — not scored
Size4 MB51 MB
Age rating4+4+
DeveloperAhed QaraqraToshiya Hondo

In-app purchases

None

Calculator X

No in-app purchases

1 purchases

Dev Calc

Subscriptions1
  • Remove Ads (Monthly)$1.991 Month

Questions

Is Calculator X free?
Calculator X is free to download, with no in-app purchases.
Is Dev Calc free?
Dev Calc is free to download, with in-app purchases available.
Which is updated more often, Calculator X or Dev Calc?
Calculator X ships an update every 4 weeks, and Dev Calc every 2 months. Most recently, Calculator X was updated on September 18, 2026 and Dev Calc on June 4, 2026.

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