Comparison

Calcularium vs Pipefitter_Pro

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

Pipefitter_Pro

This app is a pipe calculation tool that helps determine offsets, angles, and pipe segments. It offers a visual representation of angles and a slider for quick offset dimensioning, with dynamic angle updates. Future updates aim to include 3D angle calculations.

Highlights
  • Calculate pipe offsets
  • Determine angles
  • Calculate pipe segments
  • Visual angle representation
  • Slider for offset dimensioning
  • Dynamic angle updates
Features
Read full description

Pipefitter Pro is a calculator for pipefitters. It calculates offsets, elbow angles and spool lengths, and draws what it works out. Choose a case from the menu, enter the pipe diameter and elbow radius on the workshop keypad, then read the available results: angles, the spool between elbows, elbow takeout, arc lengths and caliper dimensions. CASES AND VIEWS • BACK TO BACK — two elbows, with either the angle or the offset unknown. • S TYPE — offset, travel or a fixed 45° option. • TEE OFFSET — calculations that include the branch diameter. • CALCULATOR — one elbow cut out of a 90°. • 3D — two elbows in space, set using the A, B and C dimensions of a box. • SLIDER / SLIDER S TYPE / SLIDER TEE — change the angle and watch the offset change. • 3D SLIDER — set the elbow orientation in a spatial model and read the angles, the insert and the live box dimensions. The box is a visual reference, not a cut length. Depending on the case, results appear on the Angle, Dimensions and Elbow tabs; selected cases add a 3D view you can rotate and zoom. UNITS AND INPUT Lengths in millimeters, centimeters and inches. Feet-and-inches notation and decimal or fractional inches are also supported. Choose 1/16 or 1/32 precision for inch fractions. Angles are given in decimal degrees. The workshop keypad and fraction picker help you enter dimensions; add frequently used cases to favorites. PIPE AND ELBOW DIMENSIONS The DIMENSIONS tile opens the built-in NPS/DN table. It contains outside diameters and centerline radii for long-radius and short-radius elbows. Add and edit dimensions, then use them in calculations. Save a list backup to a file and restore the list from a backup. BEFORE YOU CUT Pipefitter Pro supports the preparation of workshop work. Check the dimensions against your technical documentation and your shop procedures before cutting and welding.

Screenshots

Calcularium4 screens
Pipefitter_Pro4 screens

Verdict

The call

The clearest difference is price: Calcularium at Free against Pipefitter_Pro's $10.99. Calcularium also leads on rating (4.6 vs 3.0) and update cadence (fortnightly vs every 47 months). Pipefitter_Pro's advantage is in-app purchases (none vs 7) and ads (none vs shown). On device support 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

Calcularium is free to download; Pipefitter_Pro costs $10.99 up front. Calcularium sells 7 in-app purchases, starting at $3.99 per month. Pipefitter_Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calcularium holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Calcularium has 2.2K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 67% of Calcularium's written reviews are positive against 50% of Pipefitter_Pro's.

UpkeepUpdate frequency

Calcularium ships an update fortnightly, Pipefitter_Pro every 47 months. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

Scorecard10 real differences · 1 level
Calcularium versus Pipefitter_Pro: the parameters behind the verdict, then further details
ParameterCalculariumPipefitter_Pro
PriceFree — better$10.99
Rating4.6 (2.2K ratings) — better3.0 (2 ratings)
Positive reviews67.3% of reviews — better50.0% of reviews
Number of ratings2.2K — better2
Update frequencyFortnightly — betterEvery 47 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank—#126 — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS18.015.0 — better
Further details — not scored
Size52 MB50 MB
Age rating4+4+
DeveloperInVooDoo LLCTomasz Szymanski

Customer experience

Calcularium

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

Pipefitter_Pro

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews12 reviews
Positive50.0%
Neutral8.3%
Negative41.7%

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

Pipefitter_Pro

Not enough reviews yet to summarise bugs or requests.

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
None

Pipefitter_Pro

No in-app purchases

Questions

Is Calcularium free?
Calcularium is free to download, with in-app purchases available.
Is Pipefitter_Pro free?
Pipefitter_Pro costs $10.99, with no in-app purchases.
Which has better reviews, Calcularium or Pipefitter_Pro?
Calcularium is rated higher. Calcularium averages 4.6 out of 5 from 2.2K ratings, while Pipefitter_Pro averages 3.0 from 2 ratings.
Do Calcularium or Pipefitter_Pro have ads?
Calcularium shows ads; Pipefitter_Pro does not.
Which is updated more often, Calcularium or Pipefitter_Pro?
Calcularium ships an update fortnightly, and Pipefitter_Pro every 47 months. Most recently, Calcularium was updated on September 28, 2026 and Pipefitter_Pro on September 30, 2026.

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