Comparison

Audio Toolbox vs ClockBridge

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

Head to head
About

Audio Toolbox

This app provides a comprehensive suite of audio analysis tools, including a tone generator, oscilloscope, and FFT analysis engine. It allows users to create and analyze various waveforms, detect frequencies, and tune instruments with high accuracy.

Highlights
  • Tone Generator (20Hz-22KHz)
  • Multiple Waveform Options
  • Fast Fourier Analysis
  • Audio Oscilloscope
  • Frequency and Note Detection
  • SPL Meter with LEQ
  • CSV Data Export
Features
Read full description

Audio Toolbox is a suite of audio analysis tools for the iPhone and iPad. It comprises both audio waveform generators as well as a highly accurate Fast Fourier analysis engine, an audio oscilloscope and various frequency detection and tuning tools. The Tone Generator allows you to create anything from a simple sine, triangle, square, or sawtooth waveform as well as white and pink noise. It also supports log and linear sweep tones with definable range and level and complex wave construction using sine waves. The later is great for teaching audio theory with its DTMF and complex tone generation tools you can build complex waveforms and then analyse their component parts using FFT and the oscilloscope. Build DTMF, triangle, square or saw waves using multiple sine waves etc. The Audio Oscilloscope allows you to analyse directly from the tone generator or microphone. The scope features both free running and single shot modes with adjustable triggering options. The single shot mode automatically starts and stops capturing when short bursts of sound exceed a threshold. The oscilloscope also features a simple measuring tool to help measure duration and frequency of a waveform. The FFT Analysis section provides both Linear, Logarithmic as well as 1:1, 1:3 and 1:6 Octave modes. There is also an SPL meter complete with LEQ options and A/C weighting, log and linear Spectrograph and Mixer EQ modes for setting up audio mixers. All screens support 10x zoom, full screen and pause modes to aid analysis. There are also specific modes to detect peak frequencies, musical notes with cents offset, perfect for instrument tuning. Definable calibration tuning allows you to tune +/- 40Hz. Features: •20Hz-22KHz Tone Generator. •Sine, Square, Saw, Triangle, Sweep and MultiTone options. •Accurate 8K Fast Fourier Analysis. •32bit / 44KHz floating point audio sampling. •Standard ANSI/IEC A and C weighting curves. •Up to 64x oversampling. •Smoothing (alternative to averaging). •Automatic noise cancellation. •Automatic peak note / frequency and octave display. •Narrow band Linear and Logarithmic scalable displays. •Spectrogram display with Log and Linear Modes. •1:1, 1:3 and 1:6 octave display modes. •1:1, 1:3 and 1.6 Mixer tuning modes. •SPL (Sound Pressure Level) display. •Max, Min and Peak level capture. •LEQ Mode (Equivalent Continuous Sound Level). •Variable definable decibel scales. •Touch screen display of nearest point with frequency and decibel readout. •Audio Oscilloscope - Free Running and One Shot modes. •0.1 to 1000Hz timebase. •0.25-50x scope Magnification. •Definable trigger (leading and trailing edge). •10x zoom and full screen modes. •Pause facility freezes the live trace to aid analysis of data. •Camera Roll capture facility. •Export and Email CSV data from FFT or Scope. •Built in web server for transferring files. •Capture peaks over time facility. •Works on both iPhone and iPads.

About

ClockBridge

Features
Read full description

AUM can send MIDI clock, but it can't follow one. ClockBridge closes that gap. Load ClockBridge in AUM as a MIDI processor, route your hardware's MIDI into it and turn on Link. Your groovebox or sequencer now sets the tempo, and pressing play on it starts AUM straight away, on the hardware's downbeat. Stop stops it. It's one button. The ring tells you what's happening: grey while it waits for clock, yellow once it has locked on, red if the clock goes away. Pull the cable mid-song and the tempo holds and the music keeps going. • Follows tempo changes as you turn the knob • Starts AUM on the hardware's downbeat instead of at the next bar • Steady timing even when the host delivers clock in audio-buffer steps • Timing offset in milliseconds, to line up with your hardware's latency • Sync can be mapped to a hardware button in the host • Light enough to load in every project ClockBridge uses Ableton Link, so the tempo is shared with every Link-enabled app on your iPad and your local network.

Screenshots

Audio Toolbox4 screens
ClockBridge2 screens

Verdict

The call

The clearest difference is update cadence: ClockBridge at every 6 days against Audio Toolbox's every 8 months. Audio Toolbox's advantage is iOS requirement (13 vs 17.0). On price, 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

Audio Toolbox costs $3.99 and ClockBridge $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Audio Toolbox ships an update every 8 months, ClockBridge every 6 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
Audio Toolbox versus ClockBridge: the parameters behind the verdict, then further details
ParameterAudio ToolboxClockBridge
Price$3.99$3.99
Rating5.0 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 8 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13 — better17.0
Further details — not scored
Size3 MB3 MB
Age rating4+4+
Developer4Pockets.comTanel Teemusk

In-app purchases

None

Audio Toolbox

No in-app purchases

None

ClockBridge

No in-app purchases

Questions

Is Audio Toolbox free?
Audio Toolbox costs $3.99, with no in-app purchases.
Is ClockBridge free?
ClockBridge costs $3.99, with no in-app purchases.
Do Audio Toolbox or ClockBridge have ads?
Neither Audio Toolbox nor ClockBridge shows ads.
Which is updated more often, Audio Toolbox or ClockBridge?
Audio Toolbox ships an update every 8 months, and ClockBridge every 6 days. Most recently, Audio Toolbox was updated on October 24, 2026 and ClockBridge on October 29, 2026.

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