Comparison

FrackCalc vs Vector Calculator Plus

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

Head to head
About

FrackCalc

This app provides on-the-go hydraulic fracturing calculations for the oilfield. It helps determine chemical rates, fluid clean-up, proppant amounts, and pump speeds. Includes a unit converter for common oilfield measurements.

Highlights
  • Hydraulic fracturing calculations
  • Proppant amount and height determination
  • RPM calculator for pumping speeds
  • Hydrostatic calculator for proppant-laden slurry
  • Oilfield unit converter
  • Pump rate calculation based on transmission curves
Features
Currently charting
Read full description

FracCalc is an all-in-one oilfield calculator engineered by Moosaa Young specifically for hydraulic fracturing operations. Perform essential oilfield calculations and track your stage bonuses on the fly directly from your phone — no internet connection or manual equation lookups required! Key Features & Calculators: • Stage Bonus & Salary Calculator: Log daily pumped stages, customize stage rate schedule templates (1 to 40 stages), calculate total bonus and salary earnings with multi-currency support, share/import schedules via AirDrop or file picker, and track multi-year earnings history. • Brine & Acid-Brine Calculator: Calculate Specific Gravity (SG), solution density (ppg), final bbl volume, and dry salt requirements (lbs/bbl) for KCl, CaCl2, CaBr2, and NaCl brines with built-in solubility limits and interactive reference tables. • Frac Pump Simulator: Simulate Caterpillar and Allison transmission curve outputs to view exact pump rates in high-visibility BPM with live lockup status and pressure safety limits. • Chemical & Fluid Rates: Rapidly determine chemical injection rates and fluid clean rates during operations. • Screenout & Proppant Height: Calculate exact proppant volume and settled height post-screenout, giving Coiled Tubing teams precise estimates of where tool tag is expected. • Auger RPM Calculator: User-friendly sliders and steppers help you dial in exact auger speeds while pumping, eliminating target undershoot or overshoot. • Hydrostatic & Slurry Pressure: Calculate proppant-laden slurry hydrostatic pressure in the wellbore to forecast surface pressure drops as proppant concentration increases. • Oilfield Unit Converter: Quick conversion utility for all standard oilfield engineering units. • Modern Dark-Mode & Edge Swipe Navigation: Enjoy a sleek, dark-mode friendly card interface with fluid edge-swipe navigation designed for fast field use. Designed by field engineers for field engineers — put fast, reliable frac calculations, instant AirDrop template sharing, and stage bonus tracking right in your pocket!

About

Vector Calculator Plus

This app simplifies vector addition for students and educators. It allows for quick calculations of multiple vectors, visualizing the results with generated graphs. Users can customize graph elements and save images for later use.

Highlights
  • Instant vector calculation
  • Add multiple vectors by x, y, magnitude, or angle
  • Generate vector images
  • Save vector images to camera roll
  • Customize graph display options
  • Set background color for graphs
Features
Read full description

Vector Calculator is math calculator to find vector addition fast and easy. Vector Calculator give operation of adding two or more vectors together into a vector sum. The parallelogram law gives the rule for vector addition of two or more vectors. Features: • Instant vector calculation. • Add multiple vector by x, y, magnitude or angle. • Vector Image is generated upon calculation. • Save Vector Image into camera roll. • Option to show/hide Grid, Indicator, Label, Vector Label or Magnitude Label for Vector Graph. • Option to enable/disable Background for Vector Graph. • Option to set Background Colour for Vector Graph. A Vector has magnitude [size] and direction. No matter which order you add them, you will get the same result. Magnitude of a Vector: The magnitude of a vector is shown by two vertical bars on either side of the vector |a| Adding Vectors: Vectors can add by adding the x parts and adding the y parts: Example: add the vectors a = (2,3) and b = (4,5) |a+b| = |a| + |b| |a+b| = (2,3) + (4,5) = (2+4,3+5) = (6,8) Common examples of vectors are force and velocity. Both force and velocity are in a particular direction. The magnitude of the vector would indicate the strength of the force or the speed associated with the velocity. Vector Calculator is useful for math teachers, educator, or anyone who want to prepare vector math material for teaching. Also for students who need to learn more detail or understanding of math vector addition operation. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

Screenshots

FrackCalc4 screens
Vector Calculator Plus4 screens

Verdict

The call

The clearest difference is review sentiment: FrackCalc at 100% against Vector Calculator Plus's 0%. FrackCalc also leads on rating (5.0 vs 2.5) and update cadence (weekly vs every 43 months). Vector Calculator Plus's advantage is price ($2.99 vs $9.99) and iOS requirement (13 vs 16.0). On ratings volume, ads, in-app purchases and monetization model 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

FrackCalc costs $9.99 and Vector Calculator Plus $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

FrackCalc holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 100% of FrackCalc's written reviews are positive against 0% of Vector Calculator Plus's.

UpkeepUpdate frequency

FrackCalc ships an update weekly, Vector Calculator Plus every 43 months. Both last shipped on October 11, 2026.

Scorecard6 real differences · 5 level
FrackCalc versus Vector Calculator Plus: the parameters behind the verdict, then further details
ParameterFrackCalcVector Calculator Plus
Price$9.99$2.99 — better
Rating5.0 (1 ratings) — better2.5 (2 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings12 — better
Update frequencyWeekly — betterEvery 43 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#180 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013 — better
Further details — not scored
Size14 MB1 MB
Age rating4+4+
DeveloperMoosaa YoungHeng Jia Liang

Customer experience

FrackCalc

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Vector Calculator Plus

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

FrackCalc

No in-app purchases

None

Vector Calculator Plus

No in-app purchases

Questions

Is FrackCalc free?
FrackCalc costs $9.99, with no in-app purchases.
Is Vector Calculator Plus free?
Vector Calculator Plus costs $2.99, with no in-app purchases.
Which has better reviews, FrackCalc or Vector Calculator Plus?
FrackCalc is rated higher. FrackCalc averages 5.0 out of 5 from 1 ratings, while Vector Calculator Plus averages 2.5 from 2 ratings.
Do FrackCalc or Vector Calculator Plus have ads?
Neither FrackCalc nor Vector Calculator Plus shows ads.
Which is updated more often, FrackCalc or Vector Calculator Plus?
FrackCalc ships an update weekly, and Vector Calculator Plus every 43 months. Most recently, FrackCalc was updated on October 11, 2026 and Vector Calculator Plus on October 11, 2026.

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