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.
Hydraulic Power Unit
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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.
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.
- 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
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | Hydraulic Power Unit | Sealing Materials Selector |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 37 months | Every 11 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 6.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 4 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Zanthic Automation Inc. | Trelleborg Sealing Solutions |
In-app purchases
Hydraulic Power Unit
No in-app purchases
Sealing Materials Selector
No in-app purchases
Questions
Is Hydraulic Power Unit free?
Is Sealing Materials Selector free?
Do Hydraulic Power Unit or Sealing Materials Selector have ads?
Which is updated more often, Hydraulic Power Unit or Sealing Materials Selector?
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