Comparison

Hydraulic Power Unit vs Sealing Materials Selector

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

Head to head
About

Hydraulic Power Unit

Features
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The Hydraulic Power Unit Calculator can be used to determine the electrical power required for specific flow and pressure parameters. User can enter values for pump efficiency, oil flow and hydraulic pressure. Calculations will be made to determine required motor power. The user can then select or enter custom power source specifications (Voltage, Single/3 Phase, Power Factor, Motor Efficiency) to determine the amperage draw required. Reservoir design page includes calculations for tank size, oil volume and heat dissipation. Values are entered in either metric or imperial units. Results are shown for both metric and imperial. There is also a Speed - Torque - Power calculator. Enter any two variables and have the third calculated. Unit conversions are built into the calculation page.

About

Sealing Materials Selector

Easily find the right sealing materials by entering specifications like temperature and hardness. Filter by chemical compatibility, approvals, or product type for O-Rings, Quad-Rings, and V-Rings. Request material datasheets directly through the app.

Highlights
  • Search by material specifications
  • Filter by temperature and hardness
  • Chemical compatibility filtering
  • Institute approvals filtering
  • Product type filtering (O-Rings, Quad-Rings, V-Rings)
  • Request material datasheets
Features
Read full description

Sealing Materials Selector app allows you to easily search Trelleborg Sealing Solutions materials. By simply entering Material Specifications, like for example Material Group, in combination with your required parameters, such as temperature or hardness, the app instantly proposes the right materials for your need. In addition, you can filter down your search based upon chemical compatibilities, institute approvals or by product type for O-Rings, Quad-Rings and V-Rings. You even can request Material Datasheets through the app, if available.

Screenshots

Hydraulic Power Unit4 screens
Sealing Materials Selector4 screens

Verdict

The call

The clearest difference is update cadence: Sealing Materials Selector at every 11 months against Hydraulic Power Unit's every 37 months. Hydraulic Power Unit's advantage is iOS requirement (6.0 vs 15.6). On price, ads, in-app purchases and device support 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.

UpkeepUpdate frequency

Hydraulic Power Unit ships an update every 37 months, Sealing Materials Selector every 11 months. The most recent releases landed on October 26, 2026 and October 18, 2026 respectively.

Scorecard2 real differences · 7 level
Hydraulic Power Unit versus Sealing Materials Selector: the parameters behind the verdict, then further details
ParameterHydraulic Power UnitSealing Materials Selector
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 37 monthsEvery 11 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS6.0 — better15.6
Further details — not scored
Size4 MB15 MB
Age rating4+4+
DeveloperZanthic Automation Inc.Trelleborg Sealing Solutions

In-app purchases

None

Hydraulic Power Unit

No in-app purchases

None

Sealing Materials Selector

No in-app purchases

Questions

Is Hydraulic Power Unit free?
Hydraulic Power Unit is free to download, with no in-app purchases.
Is Sealing Materials Selector free?
Sealing Materials Selector is free to download, with no in-app purchases.
Do Hydraulic Power Unit or Sealing Materials Selector have ads?
Neither Hydraulic Power Unit nor Sealing Materials Selector shows ads.
Which is updated more often, Hydraulic Power Unit or Sealing Materials Selector?
Hydraulic Power Unit ships an update every 37 months, and Sealing Materials Selector every 11 months. Most recently, Hydraulic Power Unit was updated on October 26, 2026 and Sealing Materials Selector on October 18, 2026.

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