Comparison

Fault vs Seismometer ∞

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

Head to head
About

Fault

Read full description

Fault is a high-precision seismic activity visualiser that transforms your device into a real-time motion analysis tool. Built on advanced sensor filtering and a custom high-performance waveform engine, Fault helps you observe subtle tremors, vibrations, and shifts in your environment—instantly and with remarkable clarity. Designed for enthusiasts, students, researchers, engineers, and anyone curious about the motion around them, Fault brings professional-grade motion insight to your pocket without requiring any external hardware. Real-Time Seismograph Fault captures live acceleration data from your device’s built-in sensors and displays it as a dynamic 3-axis waveform. Each axis is uniquely color-coded, providing a clear and intuitive visualization of motion patterns—whether you're measuring vehicle vibrations, structural resonance, or everyday movement. Advanced Signal Processing Raw sensor data is often noisy and difficult to interpret. Fault applies intelligent filtering techniques including: High-pass filtering to reduce gravity influence Low-pass smoothing to clarify subtle motion Dynamic gain scaling for enhanced sensitivity The result is clean, stable, and meaningful motion readings. Instant Shake & Event Detection Fault detects unusual motion in real time and highlights: Peak acceleration Event duration Motion intensity From sudden jolts to continuous vibration, every event is clearly broken down as it happens. Customisable Experience Fine-tune how motion is captured and displayed with adjustable: Sensitivity and gain Filter strength Smoothing window Axis visibility Sampling rate Frame rate Every control gives you deeper precision. Elegant, Minimal Design Clean, distraction-free interface Simple menu for quick navigation Fast launch splash screen Smooth high-frame-rate rendering Lightweight, responsive, and crafted for both casual users and professionals. Powered by a Modern Sensor Engine Fault uses a custom rendering pipeline with circular buffering to ensure exceptional performance and accuracy—even during fast movements or long monitoring sessions. Who Is Fault For? Earth science students Structural engineers Vibration analysts Hardware testers DIY researchers Curious explorers From detecting table vibrations to monitoring building stability during strong winds, the possibilities are endlessly fascinating.

About

Seismometer ∞

Features
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Seismometer ∞ — earthquake detector, vibration meter, and seismograph in your pocket. Turn your iPhone into a precision seismometer and vibration meter. Detect tremors, monitor seismic waves, and visualize ground motion in real time. • Real-time seismograph visualization with precision charts • Track X, Y, Z axis vibration readings with detailed graphs • Monitor earthquake tremors and ground movement • Professional-grade sensitivity for reliable measurements • Clean, intuitive interface for easy data interpretation Perfect for earthquake awareness, physics experiments, scientific research, and education. Whether you're a researcher, student, or curious explorer, discover the hidden world of seismic activity. Privacy Policy: https://www.icloud.com/pages/0bcX7C5KVMC35FbMWk-FNfjWg Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Fault4 screens
Seismometer ∞2 screens

Verdict

The call

The clearest difference is ads: Fault at none against Seismometer ∞'s shown. Seismometer ∞'s advantage is iOS requirement (17.0 vs 26.2). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 4 level
Fault versus Seismometer ∞: the parameters behind the verdict, then further details
ParameterFaultSeismometer ∞
PriceFreeFree
Update frequency—Every 2 weeks
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS26.217.0 — better
Further details — not scored
Size3 MB16 MB
Age rating4+4+
DeveloperKshitij Jhangra辰巳家有限公司

In-app purchases

None

Fault

No in-app purchases

None

Seismometer ∞

No in-app purchases

Questions

Is Fault free?
Fault is free to download, with no in-app purchases.
Is Seismometer ∞ free?
Seismometer ∞ is free to download, with no in-app purchases.
Do Fault or Seismometer ∞ have ads?
Seismometer ∞ shows ads; Fault does not.

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