SignalScope X vs e
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Oscilloscope
- FFT Analyzer
- Spectrogram Analyzer
- Data Recorder
- Sound Intensity Analyzer
- Room Acoustics Analyzer
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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
e
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This app is a client for the e-Work Guide system. It provides services by communicating with a server installed within the factory.
Screenshots
Verdict
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
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.
SignalScope X ships an update monthly, e every 2 months. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.
| Parameter | SignalScope X | e |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (23 ratings) — better | — |
| Positive reviews | 10.2% of reviews | — |
| Number of ratings | 23 — better | — |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Mac — better | iPhone, Apple Watch |
| Requires iOS | 18.6 | 17.6 — better |
| Further details — not scored | ||
| Size | 19 MB | 97 MB |
| Age rating | 4+ | 4+ |
| Developer | Faber Acoustical, LLC | JTEKT 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
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- 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
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- Support for Audiobus output
e
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SignalScope X
- 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
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- 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
- 14-day Free Trial, Pro Tool SetFree
- Basic Tool Set 2026$69.99
- Advanced Tool Set 2026 from Basic$219.99
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- Pro Tool Set 2026 from Advanced$309.99
- Pro Tool Set 2026 from Basic$439.99
e
No in-app purchases









