Comparison

VR Mobile vs Hamm Seismograph

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

Head to head
About

VR Mobile

This app provides live vibration test monitoring and analysis by connecting to specific hardware. It also includes a suite of engineering calculators, a noise meter, an accelerometer, and a strobe light for various testing and measurement needs.

Highlights
  • Live vibration test monitoring
  • Engineering calculators
  • Noise SPL meter
  • Accelerometer
  • Strobe light
  • Remote test control
Features
Read full description

VR Mobile connects to any Vibration Research hardware device for live vibration test monitoring via an iPhone or iPad. It also contains engineering calculators, a light strobe, a noise SPL meter, and an accelerometer--all from your mobile device! FEATURES: Connect to the ObserVR1000 dynamic signal analyzer and data acquisition (DAQ) device - Set up inputs and record & monitor data - Live FFT Analysis - Use your mobile device's camera to record video in sync with your ObserVR1000 and/or GoPro® camera(s) Remotely control vibration tests running in the VibrationVIEW software - Start/stop tests - View graphs - Adjust amplitude and frequency VR Library - Complete courses, take quizzes and earn certificates on VR University - Browse articles, case studies, engineering tools, research papers, and more - Watch video tips and tech talks - Gain access to VR product manuals Max acceleration calculator - Calculate the maximum acceleration a shaker can output based on system mass Unit converter - Convert acceleration, force, mass, velocity, displacement, and more Sine calculator - Calculate acceleration, frequency, velocity, and displacement based on sinusoidal motion Shock calculator - Select the impact type (plastic or elastic) and the pulse type, and the shock calculator will calculate the remaining two values given two inputs: acceleration, impact time, velocity change, and height change Noise meter - Measure the minimum, current, and maximum decibels (dB) from your mobile device's microphone Accelerometer - Measure the minimum, current, and maximum acceleration in each of your mobile device's accelerometer axes - Zero-out acceleration to calibrate for an uneven surface Strobe light - Strobe your device's screen and/or flash LED from 1 to 30 Hz; strobing helps display objects vibrating too fast for the eye to see VR products - View VR's vibration test controllers and dynamic signal analyzers - Watch YouTube videos from VR - Visit VR's website - Browse VR's LinkedIn page

About

Hamm Seismograph

This utility app visualizes structure-borne swings caused by construction machinery, helping to identify potentially damaging vibrations. It offers real-time display, adjustable presentation modes, and diagram freezing for clear analysis.

Highlights
  • Real-time swing display
  • Adjustable presentation modes
  • Line width selection
  • Diagram freeze function
  • Sunlight-readable display
  • Local data processing
Read full description

Hamm Seismograph can display structure-borne swings, similar to a seismometer for earthquakes. In the surrounding of jobsites structure-borne swings, which are caused by construction machinery, occur many times. Especially during the compaction of soil or asphalt, dangerous swings can occur that can lead to damages on the surrounding buildings. Hamm Seismograph visualizes the much more lower swing-load of a compaction with Oscillation in comparison to vibration. Functions: - Real-time display of the swings - Selection of presentation mode (X-,Y- and Z-direction at the same time, or only one of these) - Selection of line width for the diagram - Freeze of the diagram (start-stop) - Airplay - Good clearness of display under sunlight conditions - No numerical output of the data The data collected by the HAMM Seismograph application is processed only locally on your device. HAMM does not have access to this data.

Screenshots

VR Mobile4 screens
Hamm Seismograph4 screens

Verdict

The call

The clearest difference is rating: VR Mobile at 4.7 against Hamm Seismograph's 4.1. VR Mobile also leads on review sentiment (100% vs 75%) and update cadence (every 4 months vs every 14 months). Hamm Seismograph's advantage is iOS requirement (9.0 vs 13.0). On price, ratings volume, ads 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.

ReceptionRating · Positive reviews · Number of ratings

VR Mobile holds the better App Store score, 4.7 against 4.1. Both are backed by a comparable volume of ratings — 11 and 17 respectively. Written reviews point the same way: 100% of VR Mobile's written reviews are positive against 75% of Hamm Seismograph's.

UpkeepUpdate frequency

VR Mobile ships an update every 4 months, Hamm Seismograph every 14 months. Both last shipped on September 9, 2026.

Scorecard4 real differences · 6 level
VR Mobile versus Hamm Seismograph: the parameters behind the verdict, then further details
ParameterVR MobileHamm Seismograph
PriceFreeFree
Rating4.7 (11 ratings) — better4.1 (17 ratings)
Positive reviews100.0% of reviews — better75.0% of reviews
Number of ratings1117 — better
Update frequencyEvery 4 months — betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.09.0 — better
Further details — not scored
Size34 MB1 MB
Age rating4+4+
DeveloperVibration Research Corporationi-NOVATiON GmbH

Customer experience

VR Mobile

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Hamm Seismograph

All ratings17 ratings
Positive76.5%
Neutral5.9%
Negative17.6%
Written reviews8 reviews
Positive75.0%
Neutral12.5%
Negative12.5%

In-app purchases

None

VR Mobile

No in-app purchases

None

Hamm Seismograph

No in-app purchases

Questions

Is VR Mobile free?
VR Mobile is free to download, with no in-app purchases.
Is Hamm Seismograph free?
Hamm Seismograph is free to download, with no in-app purchases.
Which has better reviews, VR Mobile or Hamm Seismograph?
VR Mobile is rated higher. VR Mobile averages 4.7 out of 5 from 11 ratings, while Hamm Seismograph averages 4.1 from 17 ratings.
Do VR Mobile or Hamm Seismograph have ads?
Neither VR Mobile nor Hamm Seismograph shows ads.
Which is updated more often, VR Mobile or Hamm Seismograph?
VR Mobile ships an update every 4 months, and Hamm Seismograph every 14 months. Most recently, VR Mobile was updated on September 9, 2026 and Hamm Seismograph on September 9, 2026.

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