SignalScope Pro!

SignalScope Pro for iOS devices is a real-time signal analysis toolset, suitable for use in areas such as acoustics, audio, electronics, and vibration. SignalScope Pro includes tools for dynamic signal analysis, as well as a signal generator for producing test signals. Optionally save a high-resolution PDF file of the spectrogram plot, or save an image to your Photos library.- Octave-band Analyzer Whole and 1/3-octave RTA (based on digital Butterworth bandpass filters) Fast, Slow, and Impulse response times Flat, A, and C frequency weighting Equivalent and time-weighted exponential average levels Max, peak, and elapsed time also captured- Level Meter Equivalent and time-weighted exponential average levels Flat, A, and C frequency weighting Max, peak, and elapsed time also captured- Oscilloscope Time scales from 0.1 to 1.0 second per division Auto, normal, and single-shot triggering Trigger slope and threshold options- Stereo Signal Generator Random and periodic pseudorandom noise (period defined by FFT length) White and pink noise weighting Lin and log frequency sweeps Tone generator

SignalScope Pro alternatives


TurboViewer, winner of the Top 5 ultimate app of all time in the iOS world by Macworld/iWorld TurboViewer is a free application and the first native DWG viewer that supports both 2D and 3D CAD DWG files for the iOS platform. Now available in 15 languages Enjoy smooth multi-touch navigation as you pan, zoom, and 3D orbit effortlessly around your DWG and DXF files. Please stay tuned for future innovative product announcements from IMSI/Design, makers TurboCAD, the #1 best selling CAD in retail, DWG is the native file format for Autodesks AutoCAD software and is a trademark of Autodesk, Inc. Visit for more information and updates.

  • size 298 MB

SketchUp Viewer

SketchUp Viewer brings 3D models to life on your iPad or iPhone allowing you to open and view SketchUp models any time, anywhere, on the device you want to view them on. Version 3.1 now includes options for defining unit preferences, the Position Camera Tool, an improved Tape Measure tool and much more Explore and share 3D models: Download models to your device from your 3D Warehouse, Trimble Connect or Dropbox account for seamless offline viewing Transfer your SketchUp models directly to the app via iTunes, open SketchUp models directly from email attachments, or open files from other cloud service apps like Google Drive. For more information, visit: app is recommended for iPhone/iPad devices with a minimum of 1024Mb of RAM (iPad Mini 2nd Gen or newer, iPhone 5 or newer).

  • rating 4.10526
  • size 45.3 MB

Fusion 360

Autodesk Fusion 360 for iPhone and iPad lets you collaborate on 3D designs with anyone inside or outside your company. With the Fusion 360 app, you have the flexibility to view, mark up, comment, and collaborate on your Fusion 360 CAD modelsanytime, anywhere. Email: [email protected] Forums:

  • rating 4.88259
  • size 118 MB

OmniFocus 2

NEW 2-week free trial OmniFocus Standard and Pro are now in-app purchases, with discounts for OmniFocus 1 and Legacy Support Edition customers. Download the app for details. SUPPORTIf you have any feedback or questions, wed love to hear from you The Omni Group offers free support: you can reach us by email at [email protected], by phone at 1-800-315-6664 or +1-206-523-4152, or on Twitter at @omnifocus.

  • size 62.3 MB

Airmail - Your Mail With You

Airmail is a powerful mail client for Mac, now available for iPhone and iPad. Designed for the latest generation iOS, it supports 3D Touch, fast document previewing, high quality PDF creation, and native integration with other apps and services for a frictionless workflow. Thanks to all the testers on the Slack group that have been involved in the development

  • rating 3.375
  • size 187 MB

More alternatives


Room Reverberation (RT60), SPL (dB) Meter, Spectrum Analyzer, Signal Generator, Polarity Checker. Features 1/1, 1/3 & 1/6 octave RTA modes, Leq, RT60 (wideband, and Octave), spectrogram, peak frequency, Fast, Medium & Slow filters, Flat & A/C Weighting, Averaging, SPL Chart Recorder, Noise Criteria (NC), White/Pink Noise, Sine, Square, Triangle, Sweep, Ramp and Impulse signals & loudspeaker polarity checker. Disclaimer: iAudioTools performance depends on the iPad/iPhone hardware, and is not guaranteed to meet any audio measurement or safety standards.

  • size 1.0 MB
  • version 5.6.16

Audio Tuning Tools for iPad

Audio Tuning Tools for iPad is a powerful audio testing & measurement app bundle that gives you the sound tuning tools on your iPad. We offer with special price set of Spectrum Analyzer (RTA), Spectrogram Analyzer and Signal Generator.- fo-Kannon : Real-time Audio Analyzer with 1/3-octave band and FFT indication.- Onmon : Spectrogram analyzer for audio and voice band.- Audio Tone Generator for iPad : Reference Signal generator with generating sine wave, sweep signal and white/pink noise. Please visit our iOS App Support page for more information on this app.

  • size 5.4 MB

Audio Tuning Pack for iPad - Spectrum Analyzer and Signal Generator

Audio Tuning Pack for iPad is a powerful audio testing & measurement app bundle that gives you the sound tuning tools on your iPad. We offer with special price set of Spectrum Analyzer (RTA) and Signal Generator.- fo-Kannon : Real-time Audio Analyzer with 1/3-octave band and FFT indication.- Audio Tone Generator for iPad : Reference Signal generator with generating sine wave, sweep signal and white/pink noise. It can generate the programable noise signal by using the band-pass filtering of 1/1 octave band or 1/3 octave, as the best sound source for environmental sound measurement, sound tuning, auditory effects like tinnitus relief and sound masking.

  • size 4.9 MB

Audio Spectrum Analyzer Pro

Audio Spectrum Analyzer is a powerful real-time audio analysis app. Full of features yet very simple to use. Feature Highlights: Octave Band Real Time Analyzer FFT Plot (Fast Fourier Transform) Linear and logarithm scales Up to 16384 FFT size A lot of available window functions Tracking for max value Max and Min for any selected frequency Stunned graphicsAnd many many more

  • size 65.7 MB
  • version 1.2

Decibel Meter Sound Detector

Track environmental noise around you with this easy-to-use decibel meter app. This app will transform your device into a professional grade sound detector with detailed visual analysis. For additional information and comments please contact [email protected]: - Accurate measurements.- Frequency Weighting A, B, C, Z.- dB range between 20 to 120.- Audible frequency range between 20 to 20,000 Hz.- dB / AF line charts analyzer with zoon-in / zoom-out feature.- Intuitive design.- Display current, average and maximum values.- Display peak frequency.- Calibrated with processional quality dB measurement device.- Manual calibration.- Export dB / AF values up to last 8 hours.- Start / Stop / Reset functionality.

  • rating 5.0
  • size 32.4 MB
  • version 1.3

Octave Band Noise Generator Lite

Octave Band Noise Generator Lite is a new noise generator that can be used to as the sound source for a variety of acoustic measurement and auditory effects. This app is a free edition that is simplified the powerful noise generation tool, Octave Band Noise Generator.It can generate a white noise and pink noise for the audio check to be used for general acoustic measurement. This signal contains all the characteristics of the source signal of White noise or Pink noise in the divided frequency band.- The octave band filters are compliant with IEC 61260:1995 and JIS C 1514:2002.TOON,LLC is a company that seeks the comfort of sound environment based on our acoustic proprietary technology, and we will provide tools for audio professional, sound technology, home theater installer, and anyone who loves audio.

Sound Level Analyzer

Sound Level Analyzer is sound level meter and sound analysis tools for iPhone. Available in variety of applications as the neighboring environmental noise measurement, audio system check, vehicle interior noise check, sound check of live events, and more.Sound Level Analyzer has additional analysis modes, which are Time-domain Graph, Frequency Realtime Analyzer(RTA) and FFT Analyzer. It can generate the programable White/Pink noise signal by using the accurate band-pass filtering of 1/1 and 1/3 octave band with ideal steep attenuation characteristics.

  • size 0.7 MB
  • version 2.3

Audio Analyzer

Audio Analyzer is a real-time spectrum, spectrogram, oscilloscope and octave RTA analyzer. It gives you a visual representation of an acoustic signal. *For 96kHz analysis use an external microphone with such capabilities through a USB camera adapter or through the iPhone/iPad dock connector (internal mic or external mic connected via the earphone jack can only be used for 44.1kHz or 48kHz analysis) You can also import files recorded on an external device.

  • size 10.5 MB
  • version 2.6


Analyzer audio signal through a microphone, headset or audio-input. The application analyzes the audio signal from the input and displays the following characteristics: signal level in dB (calibrated for the built-in microphone) displays an analog device and a digital scale. Also, there is a peak indicator values; time-registrator register in time for the minimum, maximum and average level of the signal; 30-band spectrum analyzer with a step 1/3 octave; Oscilloscope with adjustable Y-scale;The application may be used as: Noise Level Meter; determine the characteristics and nature of the noise / sound; to set up acoustic systems and home theaters; Search the resonance frequencies; a simple portable oscilloscope above the audio band; portable spectrum analyzer in the audio band; file logging functionAbility to work from the device like iRig

  • size 3.8 MB
  • version 1.2.0

ToneGen Audio Tone Generator Free

ToneGen Free Audio Tone GeneratorToneGen is an easy-to-use program that can be used as a sine wave generator, sound frequency generator or signal generator that can create audio test tones, sweeps or noise waveforms. ToneGen Features: Generate sine wave, square wave, triangular waveform, saw tooth waveform and impulse sound waves White noise generator or pink noise generator Sound generator supports frequencies from 1Hz to 22kHz Simultaneous tone generation of up to 16 tones at once Mono or separate stereo operation for dual tones or beats Log or linear sweep tone generation Play generated tones or save tones as a wav file Send tone files using Email and FTPToneGen Applications: Generate test tones for radio audio level alignment Calibration and testing of sound equipment or speakers Demonstration of audio principles to students Create harmonics by generating multiple sound frequencies Acoustics testing and equalization White noise generator Audio band signaling Hearing Tests (under medical supervision).

  • size 6.6 MB
  • version 3.25


Add precision to your pocket Spektroskop is an easy-to-use yet powerful real-time spectrum analyzer, which takes accuracy seriously. Analyze, measure, compare and save sound spectra captured with the internal microphone or any other audio source connected to your iOS device. FEATURES + real-time, high accuracy FFT analysis from 20 Hz to 20 kHz + built-in microphone calibration for all iPhone and iPad models + built-in calibration and frequency equalization for the MicW i436 microphone+ built-in calibration and frequency equalization for the Microtech Gefell M372 microphone+ free field and diffuse field equalization for all internal iPhone microphones and MicW i436+ frequency weighting dB(A) and dB(C) + time weighting Fast, Slow and Average+ optional octave and third-octave band display + hold and compare function for up to four spectra + adjustable decay rate and averaging function + CSV data export to iCloud Drive, Dropbox, Numbers, etc.+ universal App for iPhone and iPad (limited support for iPod Touch)Visit for more detail

  • size 2.1 MB
  • version 4.2.3


RoomScope turns your iPad, iPhone, or iPod touch into a room acoustics measurement and analysis tool. With RoomScope, you can measure a room impulse response and then calculate reverberation time, early decay time, clarity, and definition, as defined in the ISO 3382 standard. RoomScope Features:- Easily accessible measurement, excitation, and room analysis screens.- Export acquired data to CSV, TXT, or MAT files.- Save impulse response (IR) data to AIF, CAF, or WAV audio files.- Save high-resolution plots to PDF files.- Save plots to your devices photo library.- Import IRs acquired from other apps and stored in AIF, CAF, or WAV audio files.- Single-channel Measurement (for audio input devices that support it, multiple channels of data can be acquired simultaneously, but each channel is handled independently)- - Capture room impulse responses (IRs) directly using impulsive noise sources, such as starter pistols or balloons.- - Multiple triggering modes make it easier to capture an impulse.- - Capture IRs up to 10 seconds in length.- Dual-channel Measurement- - Measure room impulse responses (IRs) up to 16 seconds in length (up to 5 or 10 seconds on older iOS devices).- - View IR, squared IR, frequency response (FR) magnitude, or coherence in the measurement screen.- - Excitation signals include linear and log frequency sweeps (chirps) as well as white or pink random and pseudorandom noise.- - External excitation signals are supported with dual-channel (stereo) audio input hardware.- Analysis- - Calculate room acoustics parameters according to ISO 3382, including T20, T30, T60, EDT, C50, C80, D50, and D80, over the entire audio frequency range, or in whole or 1/3-octave bands.- - Plot room parameters versus whole or 1/3-octave center frequency.- - See the Schroeder decay curve plotted over the squared IR and set the decay curve integration limits with the touch of your finger.

  • size 10.0 MB
  • version 4.4.3


TheAnalyzer is a combination of a sound pressure level (SPL) meter and a full range multiple bands frequency analyzer. It is mainly designed for audio professionals who need to evaluate different working environments (e.g. studios, live stages) thats why its perfect for anyone whos in need of acoustical analysis It is easy to use and comes with amazing features only known from professional acoustic tools. Combine the Analyzer with external microphones such as the MicW i436or Microtech M372 for better measurement performance Or use it with external USB audio hardware like the RME Fireface UCX or the Alesis IO dock, change the measurement scale to dB (FS) and use it as a studio Realtime Analyzer ANALYZER FEATURESSPL Meter:- SPL measurement weighting functions: A B C Z - Industry standard response times: impulse, fast and slow- Meter switchable to dB FS for measuring with external USB interface- Pre-calibrated for all available iOS devicesRealtime Audio Analyzer (RTA) audio engine:- Bandwidth selectable from 1 octave up to 1/1200 octave (depending on your iDevice)- FFT block size from 1024 to 65536 samples - 6 different FFT window functions- Leq measurement - Automatic peak detection - Signal generator: pink and white noise, sine- Manual and automatic calibration- Frequency response compensation for different mic characteristics of the built-in microphones RTA graphics:- Touch gesture zoom- Reticle with lens functionality - Bar or FFT line view - User definable graph colors - Create up to 14 snapshots with hold, Leq, or snapshot function- Workspace concept: store all current snapshots and color settings- Snapshot and workspace storage, load and export- iCloud support: move files between local and iCloud storage - Export to .csv oder .png files: share them via Mail, Dropbox, iTunes etc.- Import of .csv filesAVAILABLE AS IN-APP PURCHASES:- Frequency response compensations for Mic-W i436 (with individually adjustable sensitivity), i266, i456, i825, i855, iShotgun and the Apple EarPods

  • size 23.8 MB
  • version 2.7.2

AudioTools Wireless

AudioTools Wireless is a pro-caliber SPL Meter, with A and C weighting, and also includes an audio signal generator that can produce sine waves, square waves, and white and pink noise. It also can send the microphone audio wirelessly to other Studio Six Digital apps running on another iOS device over a LAN.In addition to sending the uncompressed digital audio, AudioTools Wireless also sends the calibration data to the host application, so that the dB value on the host application will match the value on the AudioTools Wireless device. Currently the following Studio Six Digital apps are supported for wireless communication with AudioTools Wireless, more coming soon:* RTA Real Time Analyzer* FFT Fast Fourier Transform audio analyzer* SPL Meter Sound Level Meter* Smaart Spectrum FFT-based audio analyzer* AudioTools Requires AudioTools 6.6 or later

  • size 26.5 MB
  • version 2.2

RTA Audio Free

Real-time analyzer - RESOLUTION 1/2 Octave This tool gives you the ability to analyze the quality of your audio system in an accurate way and to find out the sound intensity your system emits at different frequencies. Easily find frequency swings, then set up your equalizer to take them into account based on the information provided by the app. Features Resolution: 1/2 OctaveLogarithm frequency scale Fixed frequency range (20 - 20kHz)Tone scale view C- H (A = 440Hz)Peak hold graphPeak average graphRMS average graphPointer functionPeak and RMS input meterFreeze functionSave screenshot function Recording specification Audio session mode - measurementSoftware input gain controlHardware input gain controlSample rate: 48000 HzBit depth: 16bitChannel: 1(mono)Frequency range: 6Hz - 24kHzDynamic range: -100dB - 0dB FFT (Fast Fourier Transform) specification Frame size: 8192Overlap: 75%Smoothing Window: Blackman-HarrisDouble precision calculationHardware acceleration

  • rating 4.2
  • size 5.1 MB
  • version 2.0.2