Sub System vs Fraction Calculator Plus +
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.
Fraction Calculator Plus +
This app simplifies complex fraction math with step-by-step visual guidance. It handles various operations, conversions, and simplifications, making it ideal for students, teachers, and professionals. It works offline and offers a user-friendly interface for all your fraction calculation needs.
- Add, subtract, multiply, divide fractions
- Mixed number and improper fraction support
- Visual fraction representation
- Step-by-step solution explanations
- Simplify fractions automatically
- Convert between decimals and fractions
- Offline functionality
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Transform complex fraction math into simple solutions with our intuitive Fraction Calculator. Whether you are a student, teacher, or professional, solve fraction problems effortlessly with step-by-step visual guidance. KEY FEATURES: - Add, subtract, multiply, and divide fractions instantly - Mixed numbers and improper fractions support - Visual fraction representation for better understanding - Step-by-step solution explanations - Simplify fractions to lowest terms automatically - Convert between decimals and fractions - History tracking of all calculations - Clean, user-friendly interface - Works offline PERFECT FOR: - Students learning fraction arithmetic - Teachers demonstrating fraction concepts - Parents helping with homework - Professionals needing quick fraction calculations - Anyone working with recipes, measurements, or construction - No internet needed ADVANCED CAPABILITIES: - Handle complex fraction expressions - Multiple fraction operations in one calculation - Precise decimal-to-fraction conversions - Smart input recognition - Dark and light theme options Our fraction calculator eliminates the guesswork from fraction math. Input your fractions using our intuitive keypad, and get instant results with clear explanations. The visual representation helps users understand fraction concepts better than traditional calculators. Whether you are adding 1/4 + 3/8, converting 0.75 to a fraction, or solving complex mixed number problems, our calculator provides accurate results every time. The step-by-step breakdown shows exactly how each calculation is performed, making it an excellent learning tool. No more struggling with fraction homework or second-guessing your calculations. Download now and make fraction math simple, fast, and accurate! Perfect for elementary, middle school, high school, and college-level mathematics. Also invaluable for cooking, carpentry, engineering, and any field requiring precise fraction calculations. Terms:https://sites.google.com/view/fraction-calculator-app/terms Privacy:https://sites.google.com/view/fraction-calculator-app/home
Screenshots
Verdict
The clearest difference is price: Fraction Calculator Plus + at Free against Sub System's $30.00. Sub System's advantage is ads (none vs shown) and update cadence (every 10 days vs every 14 months). On in-app purchases, monetization model, device support and iOS requirement 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
Fraction Calculator Plus + 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, Fraction Calculator Plus + every 14 months. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.
| Parameter | Sub System | Fraction Calculator Plus + |
|---|---|---|
| Price | $30.00 | Free — better |
| Rating | — | 4.3 (12 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | — | 12 — better |
| Update frequency | Every 10 days — better | Every 14 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 48 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | sebastian rivas | JanoGroup LLC |
Customer experience
Sub System
Fraction Calculator Plus +
In-app purchases
Sub System
No in-app purchases
Fraction Calculator Plus +
No in-app purchases
Questions
Is Sub System free?
Is Fraction Calculator Plus + free?
Do Sub System or Fraction Calculator Plus + have ads?
Which is updated more often, Sub System or Fraction Calculator Plus +?
Other comparisons
