Sealing Materials Selector vs SUN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
SUN
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The SUN-TEC Hardness Converter is a tool for converting data from one hardness scale to another scale(s) and measuring the hardness of Metallic materials for your applications. Features and Benefits: - Convert between Rockwell, Vickers, Knoop, Brinell, and Leeb hardness scales. - Minimum Thickness and Cylindrical corrections for Rockwell scales. - Diagonal Length(s) conversion to Hardness and Hardness to Diagonal Length(s) for Vickers, Knoop, and Brinell scales. Available Scales: - HRA - HRB - HRC - HRD - HRF - HR15N - HR30N - HR45N - HR15T - HR30T - HR45T - VICKERS - KNOOP - BRINELL - LEEB (HLD) Note: All information within this application tool is for reference only.
Screenshots
Verdict
The clearest difference is device support: Sealing Materials Selector at 2 against SUN's —. SUN's advantage is iOS requirement (13.4 vs 15.6). On price, update cadence and in-app purchases 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.
Sealing Materials Selector ships an update every 11 months, SUN every 14 months. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.
| Parameter | Sealing Materials Selector | SUN |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 11 months — better | Every 14 months |
| Ads | No | — |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | — |
| Requires iOS | 15.6 | 13.4 — better |
| Further details — not scored | ||
| Size | 15 MB | 24 MB |
| Age rating | 4+ | 17+ |
| Developer | Trelleborg Sealing Solutions | SUN-TEC CORPORATION |
In-app purchases
Sealing Materials Selector
No in-app purchases
SUN
No in-app purchases
Questions
Is Sealing Materials Selector free?
Is SUN free?
Which is updated more often, Sealing Materials Selector or SUN?
Other comparisons
