Yes, O-Ring is completely free and it doesn't have any in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
O-Ring is free.
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As a mechanical engineer, I find this app very useful. I use it at least once a week. The layout of the app is very easy to work with and intuitive. A must have app for all engineers and for anyone who works with o-rings. Thanks Trelleborg for spending the time on this app.
This is a great tool for quickly calculating o-ring sizes. I've mostly used the "quick search" to determine standard sizes.
This is a great tool for quick answers on the go.
Excellent tool & reference guide. Extensive fluid compatibility chart as well. Very helpful!!
Also good for unit conversion
Great application
Great App! Really like the Material vs. Chemical Compatibility chart.
A great tool to keep you from having to look through pages and pages of catalogs.
