Audio Toolbox vs WAIL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Tone Generator (20Hz-22KHz)
- Multiple Waveform Options
- Fast Fourier Analysis
- Audio Oscilloscope
- Frequency and Note Detection
- SPL Meter with LEQ
- CSV Data Export
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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.
WAIL
Transform unstable feedback into a powerful, playable instrument. This app offers direct control over harsh drones, soaring screams, and aggressive textures with an intuitive interface and real-time visual feedback.
- Dynamic XY Pads for tactile control
- Dedicated Performance Knobs for precise adjustments
- Real-time oscilloscope waveform display
- MIDI keyboard and sequencer support
- AUv3 integration with host sync
- Standalone app functionality
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WAIL - Industrial Feedback Synthesiser, Drone and AUV3 FX Turn unstable feedback into a playable instrument. WAIL forces a self-resonating signal into submission, generating harsh drones, soaring screams, and aggressive textures that traditional synths refuse to touch. Built for zero menu-diving and pure performance, WAIL delivers raw, uncompromised noise control in a single intuitive screen. TAME THE NOISE: 4 Dynamic XY Pads: Instant tactile control over Feedback/Filter, Bite/Space, Ring/Fold, and Comb/Sub. Dedicated Performance Knobs: Master, Spread, Grind, and Tune, with dual-axis Coarse/Fine tuning designed for precise, subtle adjustments mid-performance. Real-Time Visuals: Built-in integrated oscilloscope displays waveform stability and feedback saturation as you play. Drone or MIDI Triggered: Play as an evolving drone, or connect a MIDI keyboard or sequencer. AUv3 FX: Load WAIL as an effect in your host and run any track through its feedback engine. Push a drum loop, a vocal, or a synth line into full self-resonating collapse, or layer WAIL's own drone on top of what you send in. Seamless AUv3 Integration: Full host transport sync, preset save/recall, and universal MIDI CC learn across all 12 parameters. Universal Support: Formatted natively for both iPad and iPhone as an AUv3 plugin or Standalone app. 12 parameters. 4 XY pads. One feedback loop trying to escape. Sound demo here - https://www.youtube.com/watch?v=Z18IcVSqtwY Crafted by NOIDED Industries, Rochdale, England
Screenshots
Verdict
The clearest difference is price: Audio Toolbox at $3.99 against WAIL's $9.99. Audio Toolbox also leads on review sentiment (100% vs 83%) and iOS requirement (13 vs 15.6). WAIL's advantage is update cadence (every 6 weeks vs every 8 months) and chart position (#158 vs unranked). On rating, 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
Audio Toolbox costs $3.99 and WAIL $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Audio Toolbox against 5.0 for WAIL. Both are backed by a comparable volume of ratings — 7 and 9 respectively. Written reviews are what separate them: 100% of Audio Toolbox's written reviews are positive against 83% of WAIL's.
Audio Toolbox ships an update every 8 months, WAIL every 6 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.
| Parameter | Audio Toolbox | WAIL |
|---|---|---|
| Price | $3.99 — better | $9.99 |
| Rating | 5.0 (7 ratings) | 5.0 (9 ratings) |
| Positive reviews | 100.0% of reviews — better | 83.3% of reviews |
| Number of ratings | 7 | 9 — better |
| Update frequency | Every 8 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #158 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13 — better | 15.6 |
| Further details — not scored | ||
| Size | 3 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | 4Pockets.com | Anthony Moran |
Customer experience
Audio Toolbox
WAIL
In-app purchases
Audio Toolbox
No in-app purchases
WAIL
No in-app purchases









