Audio Toolbox vs G.UITAR
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.
G.UITAR
Experience the charm of 80s digital guitars on your smartphone. This app offers customizable sounds, versatile playing modes, and smart chord recognition to help you create unique music.
- Six unique guitar sounds
- Pluck and tap playing modes
- Mute individual strings
- Built-in transpose and auto-tuning
- Smart chord recognition engine
- Dynamic fretboard scaling
- Adjustable fret count (3, 4, or 5)
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G.UITAR – Your Retro Digital Guitar Companion G.UITAR brings the charm of 80s digital guitars straight to your smartphone, reimagined for modern creativity. Whether you're exploring new chord shapes or adding a vintage twist to your sound, G.UITAR offers an expressive, customizable experience for players and producers alike. Choose from six unique guitar sounds and switch effortlessly between pluck and tap modes to match your playing style. Mute individual strings for more percussive textures or open tunings—perfect for crafting original voicings. With built-in transpose and auto-tuning systems, switching keys or tunings takes just a tap. G.UITAR also includes a smart chord recognition engine to help you visualize and learn new shapes in real time—ideal for students, creators, or curious hands. Adjust the fretboard layout with dynamic scaling options to fit any screen or hand size, and select between 3, 4, or 5 frets for new chordal possibilities. Coming soon: MIDI out, theme customization, and AUv3 support—because your digital guitar should evolve with your music.
Screenshots
Verdict
The clearest difference is review sentiment: Audio Toolbox at 100% against G.UITAR's 0%. Audio Toolbox also leads on rating (5.0 vs 4.0) and device support (3 vs 1). On ads, in-app purchases and monetization model 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 G.UITAR $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Audio Toolbox holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews point the same way: 100% of Audio Toolbox's written reviews are positive against 0% of G.UITAR's.
| Parameter | Audio Toolbox | G.UITAR |
|---|---|---|
| Price | $3.99 — better | $4.99 |
| Rating | 5.0 (7 ratings) — better | 4.0 (2 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 7 — better | 2 |
| Update frequency | Every 8 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13 — better | 16.0 |
| Further details — not scored | ||
| Size | 3 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | 4Pockets.com | Paolo Giorgi |
Customer experience
Audio Toolbox
G.UITAR
In-app purchases
Audio Toolbox
No in-app purchases
G.UITAR
No in-app purchases









