Vibra Test vs Machine Defender
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Vibra Test
This tool helps assess the vibration severity of rotating machinery according to ISO 10816-03 standards. Users input machine power, foundation type, and vibration velocity to determine the operating condition, displayed in color-coded zones.
- Vibration severity testing
- ISO 10816-03 compliance
- Machine power selection
- Foundation type selection
- Color-coded operating zones
- Metric/Imperial units
- Result sharing via email
Read full descriptionHide full description
Vibra Test is a tool for vibration severity test of rotating machinery based on ISO 10816-03. User selects the type of the machine based on the power rating of the machine, selects the type of foundation (flexible or rigid), enters the RMS value of vibration velocity, and the App shows the operating condition of the machine. (Zone A: Blue, Zone B: Green, Zone C: Yellow, Zone D: Red). FEATURES: - Metric and Imperial units option - Interactive vibration severity table - Screenshot saving in the photo library - Email the results of the test DISCLAIMER: Vibra Test is intended for educational purposes. Although the calculations by this app were made with great care, it may contain error or inaccuracies. Using the results of the calculations is the responsibility of the user.
Machine Defender
This app, used with a wireless vibration sensor, collects and analyzes vibration data from industrial rotating machinery. It automatically detects faults in components like motors and pumps, providing diagnostic reports and maintenance recommendations.
- Wireless vibration data collection
- Automatic fault detection with AI
- Machine health assessment
- Maintenance recommendations
- Report storage and sharing
- Cloud platform connectivity
Read full descriptionHide full description
Used in combination with the wireless vibration sensor CAC100800, the ACOEM Machine Defender app helps mechanics to collect vibration data wirelessly and detect faults automatically with the ACOEM Accurex artificial intelligence engine. It is now possible to assess automatically the health of industrial rotating assets and detect faults on various components such as: electric motors, pumps, fans, compressors, gearboxes and more. The vibration measurement settings are automatically defined based on a visual description of the machine kinematics in the field on the mobile device. The user is guided step by step through the whole vibration measurement process, and the ACOEM Accurex automatic diagnostic is performed instantly right in front of the rotating machine and without prior learning phase needed. It provides automatic diagnostic capabilities with overall machinery health assessment, list of faults detected with severity, location on the machine and confidence level, and first level of maintenance recommendation. The following types of defects are managed: bearing or lubrication problem, unbalance, misalignment, structural resonance, pump cavitation, gear defects, shocks or modulation resulting from electrical defects or looseness, other ISO failures such as belt wear, soft foot, nearby disturbance, and more. Results and reports can easily be stored in the app and communicated through native features of the mobile device. It can also be connected to the ai.acoem.com cloud platform, centralizing vibration diagnostics reports, laser alignment reports, data trending and maintenance tasks management. The ACOEM Machine Defender app empowers mechanics to easily improve industrial plant reliability and performance with modern maintenance solutions. To learn more, please visit our website at acoem.com Wireless sensors compatible: CAC1008000
Screenshots
Verdict
The clearest difference is rating: Machine Defender at 5.0 against Vibra Test's 3.5. Machine Defender also leads on update cadence (every 8 months vs every 18 months). Vibra Test's advantage is iOS requirement (7.1 vs 12.1). 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.
Machine Defender holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Vibra Test ships an update every 18 months, Machine Defender every 8 months. The most recent releases landed on October 14, 2026 and September 28, 2026 respectively.
| Parameter | Vibra Test | Machine Defender |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 18 months | Every 8 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.1 — better | 12.1 |
| Further details — not scored | ||
| Size | 10 MB | 274 MB |
| Age rating | 4+ | 4+ |
| Developer | Motionics LLC | ACOEM Group |
Customer experience
Vibra Test
Machine Defender
In-app purchases
Vibra Test
No in-app purchases
Machine Defender
No in-app purchases
Questions
Is Vibra Test free?
Is Machine Defender free?
Which has better reviews, Vibra Test or Machine Defender?
Do Vibra Test or Machine Defender have ads?
Which is updated more often, Vibra Test or Machine Defender?
Other comparisons















