O vs ECCOFLOAT®
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
O
This app provides a comprehensive offline tool for selecting standard rubber seal sizes, including O-Rings, X-Rings, and Back-Up Rings. It offers dimension searches, housing calculations for various sealing applications, and supports multiple international standards in both metric and imperial units.
- Offline standard rubber seal size selection
- Search for O-Ring, X-Ring, and Back-Up Ring sizes
- O-Ring housing calculations for sealing applications
- Supports multiple international standards (AS568, METRIC, JIS, etc.)
- Metric and Imperial unit support
- Substitutable O-Ring size suggestions
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GMORS O-Ring Master is the completed tool for standard rubber seal sizes. When you use this APP, you don't need to have internet and catalog. Except O-Ring sizes, it also includes the search functions of X-Ring and Back-Up Ring. Otherwise, you can also use O-Ring Housing to choose suitable O-Ring in your application. Main functions are as follows: Dimension Search:O-Ring, X-Ring and Back-Up Ring. - MM and Inch are both available. - Full standard O-Ring series: AS568, BS 4518, GB/T 3452.1, JIS B2401 P, JIS B2401 G, JIS B2401 S, JIS B2401 V, SMS 1586 and METRIC. - Collocated Back-Up for AS-568 O-Ring. - Substitutable O-Ring sizes within tolerance are available. O-Ring Housing: Piston Sealing、Rod Sealing and Face Sealing. - MM and Inch are both available. - Support calculation for both Static and Dynamic sealing applications (Face sealing is with static calculation only). - Up to 7 O-Ring standards ( AS568, METRIC, JIS B2401 P/G/S/V, JASO F404, GB/T 3452.1, BS 4518 and SMS 1586) for most of size requirement of different groove design.
ECCOFLOAT®
Explore deep sea buoyancy applications with this app. Scan parts for traceability, calculate uplift and volume using a buoyancy calculator, and view product capabilities for custom molded shapes and block forms.
- NFC and QR code scanning
- Full part traceability
- Buoyancy Calculator
- Uplift and volume calculation
- View product capabilities
- Custom molded shapes information
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Trelleborg manufactures a range of high performance, low density syntactic foam for deep sea buoyancy applications called Eccofloat®. These composite foams provide ultra-low densities by selecting only the highest specification hollow glass microspheres, called Eccospheres®, and combining them within a rigid, high strength resin system. The syntactic foam is typically cast into standard blocks. Oceanographers also depend on syntactic foams to suspend instrumentation in deep ocean studies. For these applications, the syntactic foam is used in either block form or custom molded shapes for installation in manned and unmanned submersibles such as the legendary Alvin and Jason vehicles that were used to discover and explore the Titanic. Download the Eccofloat® app free today. Explore the Deep Ocean with us: > SCAN: Featuring NFC and QR code scanning with full traceability of the parts from manufacturing, service depth and back. > DESIGN: Use our Buoyancy Calculator to calculate uplift and volume based on our ultra-low density composite foams and your desired service depth. >CAPABILITIES: View our Eccofloat® products and services.
Screenshots
Verdict
The clearest difference is update cadence: ECCOFLOAT® at every 5 months against O's every 11 months. ECCOFLOAT® also leads on iOS requirement (12.0 vs 16.0). On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 5.0 for O against 5.0 for ECCOFLOAT®. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
O ships an update every 11 months, ECCOFLOAT® every 5 months. The most recent releases landed on September 26, 2026 and October 8, 2026 respectively.
| Parameter | O | ECCOFLOAT® |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 11 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 47 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | GE MAO RUBBER INDUSTRIAL CO., LTD. | Trelleborg AB |
Customer experience
O
ECCOFLOAT®
In-app purchases
O
No in-app purchases
ECCOFLOAT®
No in-app purchases








