Comparison

Seismometer ∞ vs Sensor Toolkit

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

Head to head
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/

About

Sensor Toolkit

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Sensor Toolkit turns your iPhone into a clean, practical set of everyday measurement tools. Use it when you need a level, compass, vibration meter, magnetometer, heading reader, sound meter, ruler, protractor, timer, or metronome without switching between separate apps. Built for quick checks, field work, DIY tasks, practice rooms, and daily utility, Sensor Toolkit keeps each tool focused on the measurement in front of you. Key features: • 10 tools in one app Level, Compass, Vibration, Magnetometer, Heading, Sound Meter, Ruler, Protractor, Timer, and Metronome. • Real-time sensor readings Clear visual feedback helps you read tilt, direction, sound level, vibration, magnetic field strength, angles, time, and tempo at a glance. • No ads while measuring Measurement screens stay clean, focused, and distraction-free. • Sound and vibration logs View live measurement changes over time and save chart images when you need a record. • Practical instrument-style design Dark, high-contrast screens make readings easy to check quickly. • Privacy-conscious permissions Permissions are requested only when a tool needs them. Microphone audio is used for sound level measurement and is not saved by the app. Sensor Toolkit is designed for practical reference measurements. Results depend on your device sensors, calibration, and environment, so it is not a replacement for certified professional measuring equipment.

Screenshots

Seismometer ∞2 screens
Sensor Toolkit4 screens

Verdict

The call

The clearest difference is iOS requirement: Sensor Toolkit at 15.0 against Seismometer ∞'s 17.0. On price and in-app purchases 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.

Scorecard1 real difference · 5 level
Seismometer ∞ versus Sensor Toolkit: the parameters behind the verdict, then further details
ParameterSeismometer ∞Sensor Toolkit
PriceFreeFree
Update frequencyEvery 2 weeks—
AdsYes—
In-app purchasesNoNo
DevicesiPhone — better—
Requires iOS17.015.0 — better
Further details — not scored
Size16 MB33 MB
Age rating4+4+
Developer辰巳家有限公司Hangik Lee

In-app purchases

None

Seismometer ∞

No in-app purchases

None

Sensor Toolkit

No in-app purchases

Questions

Is Seismometer ∞ free?
Seismometer ∞ is free to download, with no in-app purchases.
Is Sensor Toolkit free?
Sensor Toolkit is free to download, with no in-app purchases.

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