Comparison

Calcularium vs Programmer's Calculator

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

Head to head
About

Calcularium

This app offers real-time calculations, allowing you to see results as you type. It goes beyond basic arithmetic with advanced functions, unit conversions, and customizable expressions, acting as a powerful helper for complex calculations.

Highlights
  • Reactive Calculations
  • Voice Control (Siri)
  • Script and Photo Input
  • Multi-Level Sub-Calculations
  • Editable History
  • Unit and Currency Conversion
  • Customizable Functions
Features
Read full description

Here are Calcularium users describing the app: "You know how you're slowly calculating something and you're in the middle of an expression so you want to know how you're doing? Yeah well that's real time calculation and I couldn't find an app that did it right, tried dozens of them and still nothing, BUT this app does it the perfect way, actually the way it should work, this app is definitely worth it, thanks a lot devs, big love. Edit: OMG this is better than I thought, I just noticed the tutorials given and this app has more functions than I noticed, this is super amazing, devs, you're the best." – Anton31kah10 "I mean it literally. The tiny app packs impressive amount of useful stuff for a mere calculator. I would say it’s like mobile Excel. Math functions, unit conversion, currency exchange rates, and, even simple programmers functions. I wrote a small formula to calculate tips for our county. Easier and better than any tipping app! I hope the developer expands these functions for Shortcuts and Siri. This would be real killer app! Thanks guys!" – Z!KeepeR "What looks like just a clean calculator app is in fact a powerhouse full of advanced features you could only get with custom Excel mega sheet." – AlexDbk "You can find a lot of different kind of calculators but this is something completely new and awesome. It is not an another boring calculator. This is your real helper if you need to calculate something more than 2+2 :). Tutorial is great and helpful. History, customizable functions, variables, converter and much more. Great! It is definitely the next generation of the regular things." – Lysyk CALCULARIUM FEATURES: • Voice-controlled, backed by Siri • Script and Photo input modes • Reactive Calculations • Multi-Level Sub-Calculations with No Limits • History: Editable and Reusable • Self-Explanatory Naming for Every Component • Functions and Reusable Expressions • Constants and Reusable Numbers • Multiple Reversible Conversions (350+ units and 160+ currencies) • Advanced Search • Built-In Scientific Functions CONTROL BY VOICE Calcularium is also can be controlled by voice and has the ability to understand spoken math questions and calculate the answer. Tell it: "6 bottles by 15 dollars” - and it will give you the right result! It works by using verbal numbers and mathematical operations. FLUID DESIGN The design language of the Calcularium is based on tokens. All tokens are of the same structure: the left part shows a type of the element, the right part has a result or an entered value and its name on top. In addition to tokens there are pure numbers and math operators. HISTORY You can set an expression as a variable with the goal to use it afterwards in other expressions and give every component a clear name to recall what it stands for easily. Create a calculation, and next time you reuse it from History section, every component will clearly speak to you. Almighty Version is a recurrent subscription with such options: 1 month, 6 month and 1 year. Confirmation of purchase is required to start free one week trial period. The subscription begins immediately. Payment will be charged to iTunes Account at the end of the trial period. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. Any unused portion of a free trial period will be forfeited when the user purchases a subscription. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Privacy Policy https://www.invoodoo.com/privacy-policy Terms of Use https://www.invoodoo.com/terms-of-use

About

Programmer's Calculator

This application serves as a versatile calculator designed for programmers. It supports conversions and calculations across binary, decimal, and hexadecimal number systems.

Highlights
  • Binary number support
  • Decimal number support
  • Hexadecimal number support
  • Number system conversions
  • Programmer-focused calculations
Features
Read full description

A calculator for programmers that supports binary numbers, decimal numbers, and hexadecimal numbers. Terms of Use : https://norche.jp/app_terms.html Privacy Policy : https://norche.jp/app_policy.html

Screenshots

Calcularium4 screens
Programmer's Calculator1 screens

Verdict

The call

The clearest difference is ads: Programmer's Calculator at none against Calcularium's shown. Programmer's Calculator also leads on iOS requirement (10.0 vs 18.0). Calcularium's advantage is update cadence (fortnightly vs every 6 months). On price, rating, review sentiment and ratings volume 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. Calcularium sells 7 in-app purchases, starting at $3.99 per month and Programmer's Calculator sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Calcularium against 4.7 for Programmer's Calculator. Both are backed by a comparable volume of ratings — 2.2K and 845 respectively. Written reviews are what separate them: 67% of Calcularium's written reviews are positive against 62% of Programmer's Calculator's.

UpkeepUpdate frequency

Calcularium ships an update fortnightly, Programmer's Calculator every 6 months. The most recent releases landed on September 25, 2026 and September 22, 2026 respectively.

Scorecard3 real differences · 7 level
Calcularium versus Programmer's Calculator: the parameters behind the verdict, then further details
ParameterCalculariumProgrammer's Calculator
PriceFreeFree
Rating4.6 (2.2K ratings)4.7 (845 ratings) — better
Positive reviews67.3% of reviews — better62.1% of reviews
Number of ratings2.2K — better845
Update frequencyFortnightly — betterEvery 6 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS18.010.0 — better
Further details — not scored
Size52 MB21 MB
Age rating4+4+
DeveloperInVooDoo LLCYuma Kitasei

Customer experience

Calcularium

All ratings2,174 ratings
Positive89.7%
Neutral3.3%
Negative7.1%
Written reviews49 reviews
Positive67.3%
Neutral6.1%
Negative26.5%

Programmer's Calculator

All ratings844 ratings
Positive94.8%
Neutral2.8%
Negative2.4%
Written reviews29 reviews
Positive62.1%
Neutral13.8%
Negative24.1%

User reviews

Calcularium

From 2.2K App Store ratings

What we love

  • 🚀 Powerful and feature-packed
  • 👍 Easy to use with great tutorials
  • 🎨 Beautiful and customizable design
  • 💡 Innovative features like real-time calculation
  • 🙌 Excellent value for money

Room to improve

  • 🔍 Confusing or unintuitive interface
  • 📢 Excessive advertisements
  • 🐛 Calculation errors or inconsistencies
  • 🔒 Limited functionality in free version

Programmer's Calculator

From 845 App Store ratings

What we love

  • 🚀 Straightforward and highly functional
  • 👍 Easy to use
  • 💡 Useful for coding and calculations
  • 👍 Practical for binary and hex operations
  • 👍 Displays decimal, binary, and hex simultaneously

Room to improve

  • 🐛 Ads take too long to click out of
  • 🐛 Subscription did not remove ads
  • 🐛 App freezes and crashes
  • 🔋 High battery consumption

Bugs and requests

Calcularium

Reported bugs

3 issues
  • Crashes or freezes on certain devices
  • Incompatibility with older iOS versions
  • Issues with calculator widget functionality

Requested features

4 requests
  • Add basic calculator functions like equal and clear buttons
  • Improve unit conversion and scientific functions
  • Integrate with Shortcuts and Siri
  • Provide more customization options

Programmer's Calculator

Reported bugs

2 issues
  • Login screen freezes
  • Incompatible with older devices

Requested features

6 requests
  • Add octal support
  • Implement RPN input mode
  • Add 2's complement and bit shift functions
  • Provide visual feedback on calculations
  • Allow setting number of bits
Show 1 more
  • Add landscape mode support

In-app purchases

7 purchases

Calcularium

Subscriptions4
  • Almighty Version$3.991 Month
  • Almighty Version$4.996 Months
  • InVooDoo One$5.991 Month
Show 1 more
  • Almighty Version$29.991 Year
One-time3
  • Unlock Pro Version$199.99
  • Lifetime Almighty Version$199.99
  • Remove Ads Only$199.99
1 purchases

Programmer's Calculator

Subscriptions1
  • Premium member$0.991 Month

Questions

Is Calcularium free?
Calcularium is free to download, with in-app purchases available.
Is Programmer's Calculator free?
Programmer's Calculator is free to download, with in-app purchases available.
Which has better reviews, Calcularium or Programmer's Calculator?
Programmer's Calculator is rated higher. Calcularium averages 4.6 out of 5 from 2.2K ratings, while Programmer's Calculator averages 4.7 from 845 ratings.
Do Calcularium or Programmer's Calculator have ads?
Calcularium shows ads; Programmer's Calculator does not.
Which is updated more often, Calcularium or Programmer's Calculator?
Calcularium ships an update fortnightly, and Programmer's Calculator every 6 months. Most recently, Calcularium was updated on September 25, 2026 and Programmer's Calculator on September 22, 2026.

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