Comparison

Seismometer+ vs Spirit Level

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

Head to head
About

Seismometer+

Transform your device into a powerful seismometer to measure and visualize vibrations in real time. Track tremors, analyze surface stability, and explore the unseen movements around you with intuitive graphical displays. Perfect for science enthusiasts and the curious.

Highlights
  • Real-time X, Y, Z axis acceleration graphs
  • Cumulative vibration intensity analysis
  • Adjustable long-term data recording intervals
  • Dark mode display
  • Customizable graph update rates and sensitivity
Features
Read full description

Seismometer - Real-Time Vibration Analysis Measure everything that vibrates, shakes or moves. Or why not an actual earthquake? Transform your device into a powerful seismometer! This app uses precise acceleration data from your device to measure vibrations and display them graphically, just like a classic seismograph. Whether you're a science enthusiast or just curious about the world around you, this app makes vibration tracking simple and intuitive. Features: * Real-Time Graphs: Visualize X, Y, and Z-axis accelerations in real time with a classic seismograph-style display. *Cumulative Analysis: View the overall vibration intensity with a combined graph for long-term tracking. * Adjustable Recording Intervals: Set custom time intervals for long-term data recording to suit your needs. * Dark Mode: Enjoy a sleek, modern design optimized for dark mode, perfect for low-light environments. * Customizable Settings: Tailor the app to your preferences, from graph update rates to display sensitivity. Perfect For: Detecting subtle vibrations and tremors. Understanding the movement and stability of surfaces. Science experiments, education, and general curiosity. Download Seismometer today and explore the unseen vibrations of your world!

About

Spirit Level

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Check whether a desk, shelf, or other surface is level with a responsive 3D bubble and clear angle readings. Spirit Level works offline on iPhone and iPad, with no ads, account, or subscription. TWO WAYS TO MEASURE Use Surface mode for two-axis tilt and total inclination. Switch to Horizontal to check tilt along the screen's left-to-right axis. Keep your device face up while measuring. CALIBRATE AND HOLD Set the current position as your zero reference with Calibrate. Hold a reading with the lock button, then tap again to resume live updates. Reset calibration in Settings to return to the gravity reference. MAKE IT WORK FOR YOU - Choose a level tolerance of ±0.1°, ±0.5°, or ±1.0°. - Enable haptic feedback on supported devices. - Keep the screen awake while measuring. - Use portrait or landscape layouts. - Choose Light, Dark, or System appearance. Your measurements stay on your device. Calibration and preferences are stored locally. For consistent readings, rest the device evenly. Cases and camera bumps can affect measurements. The tolerance setting determines when the app displays LEVEL; it is not a sensor accuracy guarantee. Support: https://spirit-level.gigirella.com/ Privacy: https://spirit-level.gigirella.com/privacy/

Screenshots

Seismometer+4 screens
Spirit Level4 screens

Verdict

The call

The clearest difference is ads: Spirit Level at none against Seismometer+'s shown. Seismometer+'s advantage is iOS requirement (15.0 vs 18.2). 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 · 8 level
Seismometer+ versus Spirit Level: the parameters behind the verdict, then further details
ParameterSeismometer+Spirit Level
PriceFreeFree
Rating4.5 (82 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings82 — better—
Update frequency—Every 9 days
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.2
Further details — not scored
Size3 MB5 MB
Age rating4+4+
DeveloperUniCom TechnologyGiray Girisken

In-app purchases

None

Seismometer+

No in-app purchases

None

Spirit Level

No in-app purchases

Questions

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

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