Comparison

CPS Link vs Machine Defender

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

Head to head
About

CPS Link

Connect multiple wireless sensors to create a comprehensive diagnostic measurement system. Perform quick single measurements or complex full system diagnostics with analytics. Expand your system over time with new sensor solutions.

Highlights
  • Connect multiple wireless sensors
  • Comprehensive diagnostic measurement system
  • Perform quick measurements
  • Complex system diagnostics with analytics
  • Expandable sensor system
Read full description

CPS Link™ is a powerful, easy-to-use application that connects multiple CPS wireless sensors together at one time to create the world’s most comprehensive diagnostic measurement system. The flexibility of this patented system enables users to add sensors as required to perform quick one-step measurement tasks or more complex full home, facility or system diagnostics with analytics. A range of high quality wireless sensors are available to accommodate most common HVAC/R service needs, with more innovative sensor solutions in various levels of release and development. Interconnectivity between the CPS Link app and future sensors remains a primary criterion to provide users with the flexibility of building their own custom measurement systems, over time.

About

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.

Highlights
  • Wireless vibration data collection
  • Automatic fault detection with AI
  • Machine health assessment
  • Maintenance recommendations
  • Report storage and sharing
  • Cloud platform connectivity
Features
Read 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

CPS Link4 screens
Machine Defender4 screens

Verdict

The call

The clearest difference is rating: Machine Defender at 5.0 against CPS Link's 1.9. CPS Link's advantage is update cadence (every 3 weeks vs every 8 months) and ratings volume (154 vs 1). On price, ads, in-app purchases and monetization model 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

Machine Defender holds the better App Store score, 5.0 against 1.9. That said, the two scores are not equally well evidenced: CPS Link has 154 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

CPS Link ships an update every 3 weeks, Machine Defender every 8 months. The most recent releases landed on September 27, 2026 and June 24, 2026 respectively.

Scorecard3 real differences · 7 level
CPS Link versus Machine Defender: the parameters behind the verdict, then further details
ParameterCPS LinkMachine Defender
PriceFreeFree
Rating1.9 (154 ratings)5.0 (1 ratings) — better
Positive reviews13.3% of reviews—
Number of ratings154 — better1
Update frequencyEvery 3 weeks — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better12.1
Further details — not scored
Size85 MB274 MB
Age rating4+4+
DeveloperCPS Products, Inc.ACOEM Group

Customer experience

CPS Link

All ratings154 ratings
Positive21.4%
Neutral0.6%
Negative77.9%
Written reviews105 reviews
Positive13.3%
Neutral1.0%
Negative85.7%

Machine Defender

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

CPS Link

Reported bugs

4 issues
  • App crashes on launch
  • Bluetooth connectivity problems
  • Inconsistent readings and measurements
  • Incompatible with newer iOS versions

Requested features

3 requests
  • Update app to fix compatibility issues
  • Improve customer support and responsiveness
  • Provide better documentation and troubleshooting guides

Machine Defender

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

CPS Link

No in-app purchases

None

Machine Defender

No in-app purchases

Questions

Is CPS Link free?
CPS Link is free to download, with no in-app purchases.
Is Machine Defender free?
Machine Defender is free to download, with no in-app purchases.
Which has better reviews, CPS Link or Machine Defender?
Machine Defender is rated higher. CPS Link averages 1.9 out of 5 from 154 ratings, while Machine Defender averages 5.0 from 1 ratings.
Do CPS Link or Machine Defender have ads?
Neither CPS Link nor Machine Defender shows ads.
Which is updated more often, CPS Link or Machine Defender?
CPS Link ships an update every 3 weeks, and Machine Defender every 8 months. Most recently, CPS Link was updated on September 27, 2026 and Machine Defender on June 24, 2026.

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