Comparison

Sub System vs SciCalc Pro

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

Head to head
About

Sub System

This app allows audio engineers and sound designers to visualize sound pressure levels and their interactions. Users can place virtual speakers and microphones, manipulate them with touch gestures, and observe colorful graphs of SPL and frequency response to understand acoustical summation.

Highlights
  • Virtual speaker placement
  • Sound pressure level visualization
  • Frequency response graphs
  • Virtual microphone simulation
  • Touch-based manipulation
  • Acoustical summation understanding
Features
Read full description

An app for audio engineers and sound designers. It will let the user place virtual speakers around and see the sound pressure levels that they produce, including the interactions between sources. Colorful graphs for SPL. Frequency response based on virtual microphones. Speakers and Mics are moved around using touch functions. Zoom in, out. All graphics are touchable. Best use is to understand how acoustical summation is produced.

About

SciCalc Pro

Features
Read full description

Meet SciCalc Pro—a fast, precise scientific calculator built for real work. From everyday math to university-level statistics, it delivers pro-grade results with a clean interface, history, and a searchable in-app user guide. Why you’ll love it Accurate results you can trust High-precision math with careful numerics under the hood. Advanced statistics & probability PDFs, CDFs, and inverse CDFs (quantiles) for Normal, t, χ², F, Binomial, Poisson, Negative Binomial, and Hypergeometric. Built-in regression tools Linear, quadratic, logarithmic, and exponential fits with r and r². Complex numbers made easy cis(θ), rectangular/polar forms, conjugate, argument, and formatting. Clear modes & syntax Degrees/radians, scientific notation (EE), powers/roots, logs, and more. History & user guide Review previous calculations and search the integrated manual for functions, examples, and tips. Thoughtful percent behavior Intuitive operations for add/subtract/multiply/divide by percent. Key functions (non-exhaustive) Core math: sin, cos, tan, asin, acos, atan, sqrt, abs, exp, ln, log10, powers x^y Statistics: mean, variance, standard deviation, regressions (linear, quadratic, logarithmic, exponential) Distributions: Normal, Student’s t, Chi-Square, F, Binomial, Poisson, Negative Binomial, Hypergeometric with PDF/CDF/Inv Whether you’re studying, engineering, teaching, or double-checking a dataset, SciCalc Pro gives you the precision and control you need—without the clutter.

Screenshots

Sub System4 screens
SciCalc Pro4 screens

Verdict

The call

The clearest difference is price: SciCalc Pro at Free against Sub System's $30.00. Sub System's advantage is update cadence (every 10 days vs every 13 months) and iOS requirement (13.0 vs 17.6). On ads, in-app purchases and 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

SciCalc Pro is free to download; Sub System costs $30.00 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sub System ships an update every 10 days, SciCalc Pro every 13 months. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 5 level
Sub System versus SciCalc Pro: the parameters behind the verdict, then further details
ParameterSub SystemSciCalc Pro
Price$30.00Free — better
Positive reviews100.0% of reviews—
Update frequencyEvery 10 days — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size48 MB12 MB
Age rating4+4+
Developersebastian rivasNehemiah Pettway

In-app purchases

None

Sub System

No in-app purchases

None

SciCalc Pro

No in-app purchases

Questions

Is Sub System free?
Sub System costs $30.00, with no in-app purchases.
Is SciCalc Pro free?
SciCalc Pro is free to download, with no in-app purchases.
Do Sub System or SciCalc Pro have ads?
Neither Sub System nor SciCalc Pro shows ads.
Which is updated more often, Sub System or SciCalc Pro?
Sub System ships an update every 10 days, and SciCalc Pro every 13 months. Most recently, Sub System was updated on October 7, 2026 and SciCalc Pro on September 30, 2026.

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