FFT Spectrum Analyzer
Vibration and Vibration Pro turn your iPhone or iPad into a true FFT vibration spectrum analyzer — a portable, professional-grade alternative to a benchtop analyzer for predictive maintenance, machinery diagnostics, and vibration research.
Available on the App Store for iPhone and iPad, with an Apple Watch companion.
Acquire · Analyze · Document
Both apps share the same measurement engine and redesigned, color-coded interface. Acquire time-series data, transform it to a frequency spectrum, and share professional results in seconds.
Document your results
Every acquisition can become a crisp, shareable PDF — acquisition and sensor details, per-channel statistics, and time-series & frequency plots, identical on iPhone and iPad. Here's a full two-page sample.
Download sample report (PDF) ↓
2-page PDF · click to download
Designed for iPad, too
On iPad, the interface is rebuilt for the bigger screen: every channel's spectrum is shown full-width at once, with acquisition details and live statistics laid out around the plots — so you read more of your data without scrolling.
Vibration Pro
Vibration Pro includes everything in Vibration, then adds the tools serious technicians rely on: external and wireless sensors, repeatable test procedures, and a way to organize work by machine.
CTC WS200 and WS300 Bluetooth wireless accelerometers, the full Digiducer USB family, and The Modal Shop 485B39 two-channel USB module — mount the sensor on the machine for wider dynamic range and to keep your device off hot, dirty, or vibrating equipment.
Guide technicians step-by-step through repeatable, multi-point test procedures. Available as an auto-renewing subscription, cancelable anytime.
Organize your test scripts into a visual menu by machine, so the right procedure is always one tap away in the field.
Set adjustable alarm limits and flag over-limit peaks the moment they appear.
See it in action
Scripts are plain, human-readable steps that walk a technician through a repeatable test — select the sensor, acquire, analyze, and save the data and PDF report, the same way every time.
# Route 12 — weekly drive-end bearing survey
Comment "Route 12 weekly survey"
Enter_Jobsite_Name "North Plant"
Enter_Machine_ID "Pump P-104"
Create_Directory_From_Jobsite_Machine_ID
Instruction "Mount sensor on the motor drive-end bearing."
Select_High_Speed_Sensor "Modal Shop 485B39"
Set_High_Speed_Sensor_Fmax_kHz 2
Set_Acquisition_Length 4096
Sample
Integrate_Frequency_Data
Save_As "P-104_DE_axial"
Save_Report_As "P-104_DE_report"
EndWhich app is right for you?
Vibration covers portable spectrum analysis for machinery diagnostics, acoustic testing, and hobbyist work. Vibration Pro adds external/wireless sensors, scripting, and field-workflow tools.
| Feature |  Vibration |
 Vibration Pro |
|---|---|---|
| Acquisition | ||
| Built-in accelerometer, gyroscope & microphone | ✓ | ✓ |
| Digiducer USB accelerometers | In-App Purchaseadvanced Digiducer features | ✓full family included |
| The Modal Shop 485B39 two-channel USB module | In-App Purchase | ✓ |
| CTC WS200 / WS300 Bluetooth wireless sensors | — | ✓ |
| Sabrent USB input/output dongle | ✓ | ✓ |
| Guided accelerometer calibration | ✓ | — |
| Triggering, auto-repeat & auto-save | ✓ | ✓ |
| Analysis | ||
| Time series & FFT frequency spectrum | ✓ | ✓ |
| Lin-Lin, Log-Log, Log-Lin & Lin-Log display modes | ✓ | ✓ |
| Hamming, Hanning & Flattop windowing | ✓ | ✓ |
| Integrate / differentiate in the frequency domain | ✓ | ✓ |
| RMS & peak levels, averaging & peak hold | ✓ | ✓ |
| Color-coded peaks list & drag-cursor readout | ✓ | ✓ |
| Adjustable frequency alarm limits | — | ✓ |
| Workflow & reporting | ||
| PDF report (identical on iPhone & iPad) | ✓ | ✓ |
| CSV export & email, Files app transfer | ✓ | ✓ |
| Apple Watch companion | ✓ | ✓ |
| Save & load complete instrument settings | ✓ | ✓ |
| Machine Menu — organize scripts by machine | — | ✓ |
| Full scripting language | — | Subscriptionmonthly or annual |
Read the full manual on a big screen
The complete Vibration & Vibration Pro user guide — every screen, setting, and scripting command — formatted for comfortable reading on a computer, not just in the app.
Download
Portable FFT spectrum analysis for machinery diagnostics, acoustic testing, and hobbyist vibration work — with guided calibration.
Download on the App Store
The industrial FFT analyzer — external & Bluetooth sensors, scripting, Machine Menu, and alarm limits for professional predictive maintenance.
Download on the App Store