VR Mobile vs LD Atlas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Live vibration test monitoring
- Engineering calculators
- Noise SPL meter
- Accelerometer
- Strobe light
- Remote test control
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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
LD Atlas
This application connects to specific noise dosimeters and vibration meters via Bluetooth or WiFi. It enables users to monitor meter status, perform calibrations, conduct measurements, and generate detailed PDF reports for analysis.
- Bluetooth/WiFi connectivity
- Meter status monitoring
- Calibration
- Measurement execution
- Data review
- PDF report generation
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LD Atlas allows you to communicate via Bluetooth or WiFi with Larson Davis Spartan Noise Dosimeters - Models 730 and 730IS, Human Vibration Meters - Model HVM200, Spartan 821/721, and SoundExpert 821/721. You can view meter status, calibrate meters, make measurements, review measurement data, create and view PDF reports, and analyze data. Due to restrictions introduced in iOS, this version of Atlas does not support the 831C. Please contact support for alternatives or assistance.
Screenshots
Verdict
The clearest difference is rating: LD Atlas at 5.0 against VR Mobile's 4.7. LD Atlas also leads on update cadence (every 2 months vs every 4 months). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
LD Atlas holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 11 and 4 respectively.
VR Mobile ships an update every 4 months, LD Atlas every 2 months. The most recent releases landed on September 9, 2026 and September 14, 2026 respectively.
| Parameter | VR Mobile | LD Atlas |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (11 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 11 — better | 4 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 34 MB | 219 MB |
| Age rating | 4+ | 4+ |
| Developer | Vibration Research Corporation | PCB Piezotronics, Inc. |
Customer experience
VR Mobile
LD Atlas
In-app purchases
VR Mobile
No in-app purchases
LD Atlas
No in-app purchases
