Comparison

Smart Vibration Meter・Detector vs IntervAI

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

Head to head
About

Smart Vibration Meter・Detector

This utility app transforms your phone into a seismograph to measure vibrations and detect earthquakes. It displays readings on both the Richter and Mercalli scales, offering insights into seismic activity.

Highlights
  • Measures vibration using phone sensors
  • Displays readings on Richter scale
  • Displays readings on Mercalli intensity scale
  • Acts as a seismic detector
  • Calibration feature for accuracy
  • Classifies seismic activity effects
Features
Read full description

Vibration Meter is a free app that can measure the vibration (seismograph, body tremor, seismometer). This app uses phone sensors to measure vibration or the earthquake, and it shows a reference as a seismic detector. Using this app, you can check vibrations both on the Richter scale and on the modified Mercalli intensity scale. To calibrate application click on the button - Calibrate, put your device on the flat surface and wait till value stabilize. It should take about 20 seconds. After that click OK button and enjoy the earthquake! App shows reference to earthquake vibrations as classified by internationally used Mercalli intensity scale for seismic activities such as earthquakes. The Mercalli intensity scale is a seismic scale used for measuring the intensity of an earthquake. It measures the effects of an earthquake. Vibration Meter can also be called seismograph or seismometer when used for measuring seismic activity. Mercalli intensity scale: I. Instrumental - Not felt. Recorded by seismographs. II. Weak - Felt only on top floors of high buildings. III. Slight - Felt indoors, like a passing light truck. IV. Moderate - Windows, doors rattle. Like passing train. V. Rather Strong - Felt by all. Small objects upset. VI. Strong - Books off shelves. Trees shake. Damage. VII. Very Strong - Difficult to stand. Buildings damaged. VIII. Destructive - Significant damage. Trees broken. IX. Violent - General panic. Serious damage. Cracks. X. Intense - Most buildings destroyed. Rails bent. XI. Extreme - Rails bent greatly. Pipelines destroyed. XII. Catastrophic - Near total damage. Some countries use Richter scale instead of Mercalli scale. The Richter scale is a base-10 logarithmic scale, which defines magnitude as the logarithm of the ratio of the amplitude of the seismic waves to an arbitrary, minor amplitude. Check the vibrations with you phone! ---------- SMART VIBRATION METER terms of service 1 week Meter + from 4.99$ per week (prices may vary slightly depending on the region). 1 month Meter + from 19.99$ per month (prices may vary slightly depending on the region) You can find all in-app purchases on this app store page below under “In-app purchases”. Subscriptions are automatically renewed unless they have been switched off at least 24 hours before the subscription period expires. Your account will be charged within 24 hours of payment. You can manage your subscriptions in the iOS settings and switch the automatic renewal on or off. A subscription that is already running cannot be canceled within the term that has already started. Privacy Policy: https://zipoapps.com/vibrationmeterios/privacy Terms of Use: https://zipoapps.com/vibrationmeterios/terms

About

IntervAI

Features
Read full description

Stop stressing about interviews. IntervAI is your real-time AI copilot that helps you ace technical and behavioral interviews. HOW IT WORKS - Screen sync from Windows/Mac to your iPhone/iPad - Real-time audio transcription - AI-powered answer suggestions - Code analysis and hints PERFECT FOR - Software engineering interviews - Product manager interviews - Behavioral & HR rounds - Coding challenges PRIVACY FIRST - Use your own AI API keys - No data stored on our servers - Works completely offline Download now and never freeze in an interview again!

Screenshots

Smart Vibration Meter・Detector4 screens
IntervAI1 screens

Verdict

The call

The clearest difference is price: Smart Vibration Meter・Detector at Free against IntervAI's $9.99. IntervAI's advantage is in-app purchases (none vs 17) and ads (none vs shown). On device support and iOS requirement 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

Smart Vibration Meter・Detector is free to download; IntervAI costs $9.99 up front. Smart Vibration Meter・Detector sells 17 in-app purchases, starting at $0.99 per 7 days. IntervAI asks for nothing beyond the download.

UpkeepUpdate frequency

Smart Vibration Meter・Detector ships an update every 8 months, IntervAI every 3 weeks. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.

Scorecard4 real differences · 6 level
Smart Vibration Meter・Detector versus IntervAI: the parameters behind the verdict, then further details
ParameterSmart Vibration Meter・DetectorIntervAI
PriceFree — better$9.99
Rating4.1 (27 ratings) — better—
Positive reviews60.0% of reviews—
Number of ratings27 — better—
Update frequencyEvery 8 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size79 MB3 MB
Age rating4++4
DeveloperZipoAppsYu Huang

In-app purchases

17 purchases

Smart Vibration Meter・Detector

Subscriptions16
  • Unlimited access3 Days trial$0.997 Days
  • Unlimited access3 Days trial$1.997 Days
  • Unlimited access3 Days trial$2.997 Days
Show 13 more
  • Unlimited access3 Days trial$3.997 Days
  • Unlock premuium features3 Days trial$4.997 Days
  • Unlock premuium features3 Days trial$5.997 Days
  • Unlock premuium features3 Days trial$6.997 Days
  • Unlock premuium features3 Days trial$7.997 Days
  • Unlock premuium features3 Days trial$8.997 Days
  • Unlock premuium features3 Days trial$9.991 Year
  • Unlimited access3 Days trial$19.991 Year
  • Unlock premuium features3 Days trial$19.991 Month
  • Unlimited access3 Days trial$29.991 Year
  • Unlock premuium features3 Days trial$29.991 Month
  • Unlimited access3 Days trial$39.991 Year
  • Unlimited access3 Days trial$49.991 Year
One-time1
  • Ads-Free$0.99
None

IntervAI

No in-app purchases

Questions

Is Smart Vibration Meter・Detector free?
Smart Vibration Meter・Detector is free to download, with in-app purchases available.
Is IntervAI free?
IntervAI costs $9.99, with no in-app purchases.
Do Smart Vibration Meter・Detector or IntervAI have ads?
Smart Vibration Meter・Detector shows ads; IntervAI does not.
Which is updated more often, Smart Vibration Meter・Detector or IntervAI?
Smart Vibration Meter・Detector ships an update every 8 months, and IntervAI every 3 weeks. Most recently, Smart Vibration Meter・Detector was updated on October 3, 2026 and IntervAI on October 5, 2026.

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