Comparison

Sensor Toolkit vs Seismometer ∞

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

Head to head
About

Sensor Toolkit

Features
Read full description

Turn your phone into a powerful all-in-one toolkit. Measure, detect and analyze the world around you. Top tools included: - Drive & Motion • Speedometer Pro (custom acceleration, brake, g-force tracking and measurement & HUD) • Altimeter Pro (real-time altitude tracking) • Seismograph (vibration & movement analysis) - Measurement Tools • Bubble Level (horizontal & vertical alignment) • Smart Protractor (angle & tilt detection) • Light Meter (Lux intensity measurement) - Detection & Sensors • Metal Detector (magnetic field detection) • Sound Meter (decibel measurement & peaks) - Vision & Camera • Color Detective (HEX color recognition) from any picture • HD Magnifier (zoom & low-light assist) - System & Diagnostics • Battery Lab (health, voltage & temperature) • System Inspector (hardware & device info) - Utility Tools • Turbo Flashlight (strobe & SOS modes) • Pulse Tracker (camera-based heart rate)

About

Seismometer ∞

Features
Read full description

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

Sensor Toolkit4 screens
Seismometer ∞2 screens

Verdict

The call

The clearest difference is in-app purchases: Seismometer ∞ at none against Sensor Toolkit's 4. Sensor Toolkit's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price, update cadence and ads 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. Sensor Toolkit sells 4 one-off in-app purchases. Seismometer ∞ asks for nothing beyond the download.

UpkeepUpdate frequency

Sensor Toolkit ships an update every 3 weeks, Seismometer ∞ every 2 weeks. The most recent releases landed on September 11, 2026 and September 12, 2026 respectively.

Scorecard3 real differences · 3 level
Sensor Toolkit versus Seismometer ∞: the parameters behind the verdict, then further details
ParameterSensor ToolkitSeismometer ∞
PriceFreeFree
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsYesYes
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better17.0
Further details — not scored
Size54 MB16 MB
Age rating12+4+
DeveloperDylan Calin辰巳家有限公司

In-app purchases

4 purchases

Sensor Toolkit

One-time4
  • Coffee Tip$1.00
  • SensorKit Pro$1.99
  • Pizza Tip$2.00
Show 1 more
  • Diamond Tip$5.00
None

Seismometer ∞

No in-app purchases

Questions

Is Sensor Toolkit free?
Sensor Toolkit is free to download, with in-app purchases available.
Is Seismometer ∞ free?
Seismometer ∞ is free to download, with no in-app purchases.
Do Sensor Toolkit or Seismometer ∞ have ads?
Both Sensor Toolkit and Seismometer ∞ show ads.
Which is updated more often, Sensor Toolkit or Seismometer ∞?
Sensor Toolkit ships an update every 3 weeks, and Seismometer ∞ every 2 weeks. Most recently, Sensor Toolkit was updated on September 11, 2026 and Seismometer ∞ on September 12, 2026.

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