Comparison

Machine Defender vs S1 Collector

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

Head to head
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

About

S1 Collector

Features
Read full description

Features: -Supports capability to perform Modal Impact Testing. -Supports for generating UFF files for selected Force channel.

Screenshots

Machine Defender4 screens
S1 Collector3 screens

Verdict

The call

Machine Defender and S1 Collector are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

UpkeepUpdate frequency

Machine Defender ships an update every 8 months, S1 Collector every 6 months. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

ScorecardNo meaningful differences
Machine Defender versus S1 Collector: the parameters behind the verdict, then further details
ParameterMachine DefenderS1 Collector
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 8 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.1 — better13.0
Further details — not scored
Size274 MB72 MB
Age rating4+4+
DeveloperACOEM GroupBaker Hughes Company

In-app purchases

None

Machine Defender

No in-app purchases

None

S1 Collector

No in-app purchases

Questions

Is Machine Defender free?
Machine Defender is free to download, with no in-app purchases.
Is S1 Collector free?
S1 Collector is free to download, with no in-app purchases.
Do Machine Defender or S1 Collector have ads?
Neither Machine Defender nor S1 Collector shows ads.
Which is updated more often, Machine Defender or S1 Collector?
Machine Defender ships an update every 8 months, and S1 Collector every 6 months. Most recently, Machine Defender was updated on October 17, 2026 and S1 Collector on October 25, 2026.

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