Comparison

SignalScope X vs e

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

Head to head
About

SignalScope X

This app provides powerful measurement and analysis tools for acoustics, audio, and electronics. It offers a free oscilloscope and subscription-based tool sets for basic, advanced, and professional needs, compatible across iPhone, iPad, and Mac.

Highlights
  • Oscilloscope
  • FFT Analyzer
  • Spectrogram Analyzer
  • Data Recorder
  • Sound Intensity Analyzer
  • Room Acoustics Analyzer
Features
Read full description

SignalScope X offers a range of powerful measurement and analysis tools to enhance your productivity in areas such as acoustics (sound and vibration), audio, electronics, and electroacoustics. SignalScope X includes a free oscilloscope tool. SignalScope X makes additional tools available via 3 tiers of subscription-based tool sets to meet your basic, advanced, and professional needs. Each subscription works on your iPhone, iPad, and Mac. Features: - Analyze signals coming from the Mac or iOS device’s current audio input device. - Assign engineering units to your input signals and calibrate external transducers for accurate measurements. - Assign input channel units and sensitivities for individual USB Audio devices. - Connect lab-grade microphones and sensors to your Mac, iPad, or iPhone with suitable interface hardware for precise measurements. - SignalScope offers enhanced support for select hardware from Digiducer, The Modal Shop, and miniDSP. - Nominal acoustic sensitivities included for iPhone and iPad built-in microphones, voltage sensitivities for headset input (including the standard Lightning-to-headset adapter). - Manually switch between available audio input and output sources. - Load microphone frequency response data (FRD) and apply frequency response correction (FRC) to FFT-based measurements. - Manually adjust audio sample rates, even up to 768 kHz, depending on hardware. - Save acquired measurement data to CSV, TXT (tab-delimited), or MAT files. - Save high-resolution analyzer display images to PDF files. - Retrieve your data files from your device via Files (iCloud Drive), iTunes File Sharing, or through a web browser on another device. Files may also be opened in other compatible apps (e.g. Mail, Notes, Numbers, Dropbox, etc). Basic Tools: - Oscilloscope - MultiTool - Powerful data monitoring and project management (Add 2-6 subtools, depending on screen size, and save configurations for easy recall at a later time.) - FFT Analyzer - Spectrum analyzer with user-settable frequency limits and input triggering - 2D Real-time Spectrogram Analyzer - XY Plotter - Create Lissajous curves or visualize your stereo mix - Stereo Signal Generator Advanced Tools: (Advanced Tool Set also includes basic tools) - 3D Real-time Spectrogram Analyzer - Stunning live visualization of incoming data - Octave-band Analyzer - Whole and 1/3-octave RTA - Level Meter - Overall signal level meter - Max Levels - Traffic-light-style monitoring - Noise Dosimeter - Data Recorder - Stream up to 8 channels to WAV, AIF, or CAF audio files - Multi-channel Audio File Player - Analyze pre-recorded data Pro Tools: (Pro Tool Set subscription includes all tools) - Dual-channel System Analyzer (Dual FFT analysis with support for Frequency Response Magnitude/Phase, Phase Delay, Group Delay, Coherence, Impulse Response and Cross-Correlation) - Sound Intensity Analyzer - With a suitable p-p probe, measure sound intensity and acoustic particle velocity spectra (narrowband and whole or 1/3-octave bands) and time waveforms. - Room Acoustics Analyzer (T20, T30, T60, nonlinearity, EDT, Early Decay Time, Center Time, Clarity, and Definition in various frequency bands, adjustable Schroeder integration limits) - Polar Plot - Generate beautiful high-resolution plots of polar data. - STI/PA Analyzer - Direct STI and STIPA measurements Additional Pro Features: - User-defined custom metadata in saved audio and data files - Data logging support in the Level Meter, Octave Analyzer, and Noise Dosimeter - Percentile exceeded sound levels in the Level Meter and Octave Analyzer - NC, RNC, and NR references curves, NC, SIL, and NR values in the Octave Analyzer - Voltage decibel levels can be displayed in dBV or dBu Subscription Terms: - https://www.faberacoustical.com/apps/subscriptions/terms.html Privacy Policy: - https://www.faberacoustical.com/about/privacy.html Terms and Conditions for FaberAcoustical.com: - https://www.faberacoustical.com/about/terms.html

About

e

Features
Read full description

This app is a client for the e-Work Guide system. It provides services by communicating with a server installed within the factory.

Screenshots

SignalScope X4 screens
e3 screens

Verdict

The call

The clearest difference is in-app purchases: e at none against SignalScope X's 11. On price, update cadence, 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

Both are free to download. SignalScope X sells 11 in-app purchases, starting at $3.49 per month. e asks for nothing beyond the download.

UpkeepUpdate frequency

SignalScope X ships an update monthly, e every 2 months. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.

Scorecard1 real difference · 9 level
SignalScope X versus e: the parameters behind the verdict, then further details
ParameterSignalScope Xe
PriceFreeFree
Rating3.0 (23 ratings) — better—
Positive reviews10.2% of reviews—
Number of ratings23 — better—
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, Mac — betteriPhone, Apple Watch
Requires iOS18.617.6 — better
Further details — not scored
Size19 MB97 MB
Age rating4+4+
DeveloperFaber Acoustical, LLCJTEKT CORPORATION

Bugs and requests

SignalScope X

Reported bugs

9 issues
  • Recording starts and stops
  • App crashes on launch
  • Oscilloscope and FFT not functioning
  • SPL meter inaccurate/uncalibratable
  • App not working on older devices
Show 4 more
  • File type conflicts
  • Data scattered
  • App requires subscription for basic functionality
  • Old versions no longer supported/functional

Requested features

6 requests
  • Manual for better understanding
  • Ability to store and retrieve setups
  • One-off payment option
  • More intuitive user interface
  • Ability to change Y-axis scale
Show 1 more
  • Support for Audiobus output

e

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

SignalScope X

Subscriptions6
  • Basic Tool Set, 1 Month14 Days trial$3.491 Month
  • Advanced Tool Set, 1 Month14 Days trial$9.991 Month
  • Pro Tool Set, 1 Month14 Days trial$24.991 Month
Show 3 more
  • Basic Tool Set, 1 Year14 Days trial$34.991 Year
  • Advanced Tool Set, 1 Year14 Days trial$99.991 Year
  • Pro Tool Set, 1 Year14 Days trial$249.991 Year
One-time5
  • 14-day Free Trial, Pro Tool SetFree
  • Basic Tool Set 2026$69.99
  • Advanced Tool Set 2026 from Basic$219.99
Show 2 more
  • Pro Tool Set 2026 from Advanced$309.99
  • Pro Tool Set 2026 from Basic$439.99
None

e

No in-app purchases

Questions

Is SignalScope X free?
SignalScope X is free to download, with in-app purchases available.
Is e free?
e is free to download, with no in-app purchases.
Do SignalScope X or e have ads?
Neither SignalScope X nor e shows ads.
Which is updated more often, SignalScope X or e?
SignalScope X ships an update monthly, and e every 2 months. Most recently, SignalScope X was updated on October 16, 2026 and e on October 2, 2026.

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