Comparison

Acc Calculator vs Muzz

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

Head to head
About

Acc Calculator

Perform basic arithmetic calculations with a clear two-line display that shows the formula and result simultaneously. Features large buttons, a paper tape for history, and customizable display options for ease of use.

Highlights
  • Two-line display
  • Paper tape
  • Big buttons
  • Thousands separators
  • Rounding and decimal modes
  • Copy/Paste functionality
Features
Read full description

Acc Calculator offers basic arithmetics with two line display and paper tape. Displays the calculation formula with its result at the same time. Beautiful interface design with big button. Features: - Big buttons for ease of use. - Two line display - 10 digits - Paper tape - MC, MR, M+, M-, Display current MR value (Lanscape only) - Percent operation - Thousands separators (Support multi format x.xxx,xx and x,xxx.xx) - Rounding Mode (Down, 5/4 and up ) - Decimal Points Mode (0, 1, 2, 3, 4) - Large size '+' button - Copy/Paste button - Sound Setting (on/off) - Click sound

About

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.

Highlights
  • 21 spectrum analyzer types
  • Load audio files
  • Live audio mode
  • Dark and light modes
  • Peak enhancer
Features
Read full description

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

Acc Calculator4 screens
Muzz4 screens

Verdict

The call

The clearest difference is review sentiment: Acc Calculator at 91% against Muzz's 29%. Acc Calculator also leads on price ($0.99 vs $12.99) and rating (4.7 vs 1.0). Muzz's advantage is in-app purchases (none vs 1) and update cadence (fortnightly vs every 4 months). On ads 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

Acc Calculator costs $0.99 and Muzz $12.99 up front. Acc Calculator sells 1 one-off in-app purchase. Muzz asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Acc Calculator holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Acc Calculator has 133 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 91% of Acc Calculator's written reviews are positive against 29% of Muzz's.

UpkeepUpdate frequency

Acc Calculator ships an update every 4 months, Muzz fortnightly. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.

Scorecard8 real differences · 2 level
Acc Calculator versus Muzz: the parameters behind the verdict, then further details
ParameterAcc CalculatorMuzz
Price$0.99 — better$12.99
Rating4.7 (133 ratings) — better1.0 (2 ratings)
Positive reviews91.4% of reviews — better28.6% of reviews
Number of ratings133 — better2
Update frequencyEvery 4 monthsFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS9.0 — better15.0
Further details — not scored
Size11 MB19 MB
Age rating4+4+
DeveloperDigital Mind Co., Ltd.Amit Nadir

Customer experience

Acc Calculator

All ratings133 ratings
Positive94.7%
Neutral0.0%
Negative5.3%
Written reviews139 reviews
Positive91.4%
Neutral2.9%
Negative5.8%

Muzz

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews7 reviews
Positive28.6%
Neutral0.0%
Negative71.4%

Bugs and requests

Acc Calculator

Reported bugs

3 issues
  • Login screen freezes
  • Incompatible with older devices/OS versions
  • Crashes when opening or during use

Requested features

4 requests
  • Add dark mode option
  • Allow saving/printing of calculation history
  • Improve compatibility with external keyboards
  • Provide more customization options

Muzz

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Acc Calculator

One-time1
  • Basic theme set$0.99
None

Muzz

No in-app purchases

Questions

Is Acc Calculator free?
Acc Calculator costs $0.99, and also offers in-app purchases.
Is Muzz free?
Muzz costs $12.99, with no in-app purchases.
Which has better reviews, Acc Calculator or Muzz?
Acc Calculator is rated higher. Acc Calculator averages 4.7 out of 5 from 133 ratings, while Muzz averages 1.0 from 2 ratings.
Do Acc Calculator or Muzz have ads?
Neither Acc Calculator nor Muzz shows ads.
Which is updated more often, Acc Calculator or Muzz?
Acc Calculator ships an update every 4 months, and Muzz fortnightly. Most recently, Acc Calculator was updated on September 21, 2026 and Muzz on September 18, 2026.

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