Comparison

Vibration Meter, seismograph vs VU SeQR Scan

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

Head to head
About

Vibration Meter, seismograph

This application uses your phone's accelerometer to measure and record vibrations from various sources, including earthquakes and everyday objects. It displays ground motion on a graph and uses an instrumental intensity scale for analysis. You can also monitor and share your measurement results.

Highlights
  • Measures vibration strength
  • Detects seismic waves
  • Uses accelerometer for analysis
  • Displays ground motion graph
  • Utilizes instrumental intensity scale
  • Monitors and shares results
Features
Read full description

Vibration meter is an app called seismograph or seismometer, which measures the strength of vibration, quakes, earthquakes, vibrations of the human body or any other objects around you. Our app allows for detecting and recording of seismic waves generated by earthquakes, volcanic eruptions, avalanches and other sources of vibration and shocks. Accelerometer in your mobile phone is used for detection of vibrations and measurement analysis. Graph presents a record of the ground motion at a measuring point. Ground movement or an object is presented as a function of time in the three Cartesian axes, with the z axis perpendicular to the Earth's surface and the x- and y- axes parallel to the surface. Mercalli intensity scale is a seismic scale used for measuring the intensity of an earthquake. It measures the effects of an earthquake and it is distinct from the moment of magnitude. Richter Scale assigns a magnitude number to quantify the energy released by an earthquake. Peak Ground Acceleration (PGA) is equal to the maximum ground acceleration that occurred during earthquake shaking at location. PGA is equal to the amplitude of the largest absolute acceleration recorded on an accelerogram at a site during a particular earthquake. In this app we use Instrumental Intensity Scale (developed by The United States Geological Survey) which maps peak ground acceleration and peak ground velocity on an intensity scale similar to the felt Mercalli Scale. These values are used to create shake maps by seismologists on around the world. Mercalli Intensity Scale distinguishes the following levels of vibration and impact damage: 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. This app allows you monitor and share the results of your measurements with other users. Measure and monitor all vibration and shocks using smartphone or tablet!

About

VU SeQR Scan

Features
Read full description

VU SeQR Scan is a QR & 1D BarCode scanner which can be used for a broad range of applications in real-time. It can read encrypted QR codes and 1D Barcodes which are printed on Government documents, Educational certificates, mark sheet and many more. System, we provide as SEQR Documents, used to generate such documents uses a combination of various security algorithms to create a QR code & not so easy to duplicate security features. Not only the issuer of the documents can scan and obtain the certificate, also the public users can register for free and perform the same operations. This application, after scan, provides the preview of the certificate and other document data that can be compared with the in-hand document. VU SeQR Scan, in Kenya, takes care of the documents and the solution.

Screenshots

Vibration Meter, seismograph4 screens
VU SeQR Scan4 screens

Verdict

The call

The clearest difference is in-app purchases: VU SeQR Scan at none against Vibration Meter, seismograph's 1. Vibration Meter, seismograph's advantage is update cadence (every 7 months vs every 37 months). On price, ads, 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

Both are free to download. Vibration Meter, seismograph sells 1 one-off in-app purchase. VU SeQR Scan asks for nothing beyond the download.

UpkeepUpdate frequency

Vibration Meter, seismograph ships an update every 7 months, VU SeQR Scan every 37 months. The most recent releases landed on October 26, 2026 and May 18, 2026 respectively.

Scorecard2 real differences · 8 level
Vibration Meter, seismograph versus VU SeQR Scan: the parameters behind the verdict, then further details
ParameterVibration Meter, seismographVU SeQR Scan
PriceFreeFree
Rating4.7 (729 ratings) — better—
Positive reviews41.7% of reviews—
Number of ratings729 — better—
Update frequencyEvery 7 months — betterEvery 37 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size18 MB18 MB
Age rating4+4+
DeveloperExaMobile S.A.SECURITY SOFTWARE & SOLUTIONS LLP

In-app purchases

1 purchases

Vibration Meter, seismograph

One-time1
  • Remove ads$1.99
None

VU SeQR Scan

No in-app purchases

Questions

Is Vibration Meter, seismograph free?
Vibration Meter, seismograph is free to download, with in-app purchases available.
Is VU SeQR Scan free?
VU SeQR Scan is free to download, with no in-app purchases.
Do Vibration Meter, seismograph or VU SeQR Scan have ads?
Neither Vibration Meter, seismograph nor VU SeQR Scan shows ads.
Which is updated more often, Vibration Meter, seismograph or VU SeQR Scan?
Vibration Meter, seismograph ships an update every 7 months, and VU SeQR Scan every 37 months. Most recently, Vibration Meter, seismograph was updated on October 26, 2026 and VU SeQR Scan on May 18, 2026.

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