O vs MrConveyor LT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
O
This app helps users calculate O-Ring dimensions and find compatible materials for their applications. It provides recommendations based on ISO standards and supports both metric and inch measurements.
- O-Ring housing calculation
- O-Ring size recommendations by ISO standard
- Quick search by national/international standards
- O-Ring tolerance calculation
- Metric and inch unit switching
- Chemical compatibility check
- Integration of Trelleborg Sealing Solutions Videos
Read full descriptionHide full description
The Trelleborg Sealing Solutions O-Ring App calculates O-Ring dimensions by simply entering installation specifications for your application in metric or inch. In addition, the App recommends O-Ring sizes according to ISO 3601 so you know exactly which part you need. Features at a Glance: - O-Ring Housing: After entering the bore or rod/shaft diameter, you will receive an O-Ring recommendation and O-Ring housing calculation according to the recommendations of ISO 3601 - O-Ring Quick Search: offers the selection of O-Ring nominal sizes according to the following national/international standards: ISO 3601-1 Class B (International), ISO 3601-1 Class A (AS 568, USA), NFT 47-502 (France), JIS B 2401 (Japan) SMS 1586 (Sweden) - Tolerances: calculation of O-Ring tolerances according to ISO 3601-1 Class B and Class A - Switch between metric and inch - Chemical compatibility check: find out which materials are compatible with the media used in your application. - Integration of Trelleborg Sealing Solutions Videos
MrConveyor LT
This tool provides basic conveyor calculations and drive power estimations. It supports both metric and US units, following DIN/ISO and CEMA standards for cross-section and simplified drive calculations. It's ideal for initial, on-the-road estimates.
- Conveyor cross-section calculation
- Drive power estimation
- DIN/ISO and CEMA standards support
- Metric and US units
- Simplified drive calculation
Read full descriptionHide full description
MrConveyor LT is a basic conveyor calculation and drive power estimation tool. The cross section calculation follows DIN/ISO and CEMA standards. Both metric and US units are available. The drive calculation is a simplified DIN/ISO standard based estimate. Alternately, also a simplified CEMA standard based estimate is now included. Not considered are e.g. component weights and inertias, starting and stopping dynamics, take-up and drive arrangements, complex load cases and geometry, and other important factors in order to make a conveyor a success. However, a knowledgable user can play with the inputs for an initial on the road order of magnitude estimate. For a more detailed analysis, please contact a specialist.
Screenshots
Verdict
The clearest difference is price: O at Free against MrConveyor LT's $49.99. O also leads on ratings volume (5 vs 1). MrConveyor LT's advantage is rating (5.0 vs 3.8). On update cadence, 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
O is free to download; MrConveyor LT costs $49.99 up front. Neither carries in-app purchases, so what you see is what you pay.
MrConveyor LT holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: O has 5 ratings behind it against 1, so its average is the more settled of the two.
O ships an update every 3 months, MrConveyor LT every 4 months. Both last shipped on October 12, 2026.
| Parameter | O | MrConveyor LT |
|---|---|---|
| Price | Free — better | $49.99 |
| Rating | 3.8 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.1 — better | 13.0 |
| Further details — not scored | ||
| Size | 26 MB | 1 MB |
| Age rating | 12+ | 4+ |
| Developer | Trelleborg Sealing Solutions | Gerhard Schmidt |
Customer experience
O
MrConveyor LT
In-app purchases
O
No in-app purchases
MrConveyor LT
No in-app purchases
