Torque Tightening vs O
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Torque Tightening
This utility app helps users find the correct torque settings for various applications. It provides optimal torque values to ensure proper application and safety.
- Determine optimal torque
- Suit application cases
- Provides torque values
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"Torque Tightening" lets you determine the optimal torque to suit your application cases.
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.
Screenshots
Verdict
The clearest difference is rating: O at 5.0 against Torque Tightening's 2.0. Torque Tightening's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, ratings volume, update cadence 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.
O holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Torque Tightening ships an update every 9 months, O every 11 months. The most recent releases landed on September 15, 2026 and September 22, 2026 respectively.
| Parameter | Torque Tightening | O |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 9 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 14 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | CETIM | GE MAO RUBBER INDUSTRIAL CO., LTD. |
Customer experience
Torque Tightening
O
In-app purchases
Torque Tightening
No in-app purchases
O
No in-app purchases
Questions
Is Torque Tightening free?
Is O free?
Which has better reviews, Torque Tightening or O?
Do Torque Tightening or O have ads?
Which is updated more often, Torque Tightening or O?
Other comparisons
