Comparison

Hydro CM vs Rotating Equipment Selector

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

Head to head
About

Hydro CM

Explore a 3D augmented reality model of a hydro turbine to understand condition-monitoring solutions. Visualize optimized sensor installations and discover hardware/software that translates data into maintenance actions, protecting your assets and reducing costs.

Highlights
  • Augmented reality turbine visualization
  • Optimized sensor installation display
  • Maintenance action insights
  • Asset protection and optimization
  • Cost reduction analysis
Features
Read full description

Augmented Reality: monitoring your hydro turbine How to achieve the most detailed picture of hydro turbine health. Explore this 3D hydro turbine to understand Meggitt condition-monitoring solutions and how they protect and optimise the performance of critical high value rotating assets. This AR visualisation allows you to: > see optimised sensor installations – measure more parameters at lower cost. > discover hardware and software that turns monitoring data into specific maintenance actions. > understand how these solutions not only protect your machine from catastrophic failure but reduce maintenance costs. www.meggitt.com www.meggittsensing.com/energy

About

Rotating Equipment Selector

This application assists in selecting centrifugal and reciprocating compressors, gas turbines, and motors. It provides a streamlined process for choosing the right equipment from a leading manufacturer.

Highlights
  • Compressor selection
  • Gas turbine selection
  • Motor selection
  • Equipment specification
  • Product catalog
Features
Read full description

Siemens Compressors - Centrifugal and Reciprocating, Gas Turbines and Motors selection App.

Screenshots

Hydro CM4 screens
Rotating Equipment Selector3 screens

Verdict

The call

The clearest difference is rating: Rotating Equipment Selector at 5.0 against Hydro CM's 4.0. Rotating Equipment Selector also leads on ratings volume (5 vs 1). Hydro CM's advantage is update cadence (every 4 days vs every 19 months). 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

Rotating Equipment Selector holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Rotating Equipment Selector has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Hydro CM ships an update every 4 days, Rotating Equipment Selector every 19 months. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 6 level
Hydro CM versus Rotating Equipment Selector: the parameters behind the verdict, then further details
ParameterHydro CMRotating Equipment Selector
PriceFreeFree
Rating4.0 (1 ratings)5.0 (5 ratings) — better
Number of ratings15 — better
Update frequencyEvery 4 days — betterEvery 19 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size361 MB37 MB
Age rating4+4+
DeveloperBloc DigitalSiemens Energy

Customer experience

Hydro CM

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

Rotating Equipment Selector

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Hydro CM

No in-app purchases

None

Rotating Equipment Selector

No in-app purchases

Questions

Is Hydro CM free?
Hydro CM is free to download, with no in-app purchases.
Is Rotating Equipment Selector free?
Rotating Equipment Selector is free to download, with no in-app purchases.
Which has better reviews, Hydro CM or Rotating Equipment Selector?
Rotating Equipment Selector is rated higher. Hydro CM averages 4.0 out of 5 from 1 ratings, while Rotating Equipment Selector averages 5.0 from 5 ratings.
Do Hydro CM or Rotating Equipment Selector have ads?
Neither Hydro CM nor Rotating Equipment Selector shows ads.
Which is updated more often, Hydro CM or Rotating Equipment Selector?
Hydro CM ships an update every 4 days, and Rotating Equipment Selector every 19 months. Most recently, Hydro CM was updated on October 14, 2026 and Rotating Equipment Selector on October 13, 2026.

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