AudioCalc vs Muzz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AudioCalc
This tool provides audio-specific conversion formulas for HiFi enthusiasts, home theater buffs, and audio professionals. It includes converters for frequency, band, delay, volume, and room modes, aiding in loudspeaker positioning, EQ setup, and room acoustics. Supports both imperial and metric units.
- Frequency, period, and wavelength converter
- Parametric EQ band setup tool
- Speaker distance and delay calculator
- Amplifier power calculation
- Room mode response computation
- Imperial and metric unit support
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HiFi enthousiasts, Home Theater buffs and audio professionals alike make sure you always have those handy formulas with you. This tool offers you a collection of audio targeted conversion tools. The frequency, period and wavelength converter comes in quite handy for positioning loudspeakers. The band tool helps you setup a parametric EQ. The delay part gives you an insight when setting speaker distances and delays. The volume tool helps you determine the amplifier power required for a given set of speakers. The room modal response tool allows you to compute the room modes present in a room. This is crucial when placing a subwoofer provide correct bass response. It can also be used when designing a room to avoid dimensions that would lead to a poor modal response. AudioCalc works in both imperial and metric units. Simply swipe down to reveal the unit selection view. If you liked this tool, be sure to also check VideoCalc, the companion tool that addresses your video needs.
Muzz
Analyze audio signals with 21 different spectrum analyzers. Visualize fundamental frequencies, harmonics, and feedback for both beginners and experts. Supports loading audio files or using live microphone input.
- 21 spectrum analyzer types
- Load audio files
- Live audio mode
- Dark and light modes
- Peak enhancer
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Muzz is a professional-grade real-time spectrum analyzer built for audio technicians, acoustic engineers, musicians, and sound enthusiasts. Whether you're diagnosing room acoustics, analyzing live microphone input, inspecting harmonics and feedback, or studying the frequency characteristics of any audio signal — Muzz gives you the tools to see exactly what you're hearing. 21 spectrum graph types, from standard linear analyzers to advanced harmonic alignment and octave-aligned displays, give you flexibility no single visualization tool can match. NEW IN 1.0.8 — Live frequency axis: Hz markers (100–8kHz) displayed permanently along the bottom of every visualization — Long press anywhere on the visualization to pin the exact frequency at that point for 2 seconds — Continuous background audio: Muzz now keeps analyzing when your screen locks or you switch apps — critical for live monitoring sessions — CarPlay compatible: enabling the microphone no longer interrupts audio playing through your car system — Frequency labels adapt automatically to dark and light mode Core Features — Load any audio file and visualize its full spectrum in real time — Live analysis mode via device microphone — ideal for room acoustics, stage monitoring, and field work — Persistent Hz frequency axis on every visualization — Long press to inspect exact frequencies at any point on the spectrum — Peak enhancer: isolates spectral lines (harmonics, fundamentals) and suppresses percussive noise — Toggle visualization variants to explore alternative display modes — Gain and treble controls to calibrate the display to your signal level — Dark and light mode with automatic label color adaptation — Runs continuously in the background — no interruptions during live sessions 21 Spectrum Graph Types Bars Extended Bars Short Line Spectrum Music Spectrum Linear OAS Overlapped Octaves Octave Aligned Spectrum Elliptical OAS Spiral OAS Harmonic Alignment TriOct Spectrum Overlapped Harmonics Harmonograph Cymbal Rainbow Spectrum Waterfall Rainbow OAS Rainbow Ellipse Spinning Ellipse Out of the Rabbit Hole Down the Rabbit Hole For in-depth theory on each spectrum type, tap the info icon to access the full Visualizations Guide. Questions, bug reports, or feature ideas — we want to hear from you: amitnadir@gmail.com
Screenshots
Verdict
The clearest difference is price: AudioCalc at $2.99 against Muzz's $12.99. AudioCalc also leads on rating (3.0 vs 1.0) and iOS requirement (7.0 vs 15.0). Muzz's advantage is update cadence (fortnightly vs every 7 months) and device support (4 vs 2). On review sentiment, ratings volume, ads and in-app purchases 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
AudioCalc costs $2.99 and Muzz $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.
AudioCalc holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 33% of AudioCalc's written reviews are positive against 29% of Muzz's.
AudioCalc ships an update every 7 months, Muzz fortnightly. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.
| Parameter | AudioCalc | Muzz |
|---|---|---|
| Price | $2.99 — better | $12.99 |
| Rating | 3.0 (1 ratings) — better | 1.0 (2 ratings) |
| Positive reviews | 33.3% of reviews — better | 28.6% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 7 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 7.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 3 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Nelcea | Amit Nadir |
Customer experience
AudioCalc
Muzz
In-app purchases
AudioCalc
No in-app purchases
Muzz
No in-app purchases









