Sub System vs SciCalc Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Virtual speaker placement
- Sound pressure level visualization
- Frequency response graphs
- Virtual microphone simulation
- Touch-based manipulation
- Acoustical summation understanding
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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.
SciCalc Pro
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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
Verdict
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
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.
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.
| Parameter | Sub System | SciCalc Pro |
|---|---|---|
| Price | $30.00 | Free — better |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 10 days — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 48 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | sebastian rivas | Nehemiah Pettway |
In-app purchases
Sub System
No in-app purchases
SciCalc Pro
No in-app purchases
Questions
Is Sub System free?
Is SciCalc Pro free?
Do Sub System or SciCalc Pro have ads?
Which is updated more often, Sub System or SciCalc Pro?
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