Best apps like O-Ring

10+ similar apps compared and reviewed

4.1 avg rating
10 free apps
Updated October 2026

O is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

KobCard

KobCard by KOB MARKETING

Gift Card Information Platform
4.0(62 ratings)
Free
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KobCard is a comprehensive gift card information platform that offers real-time exchange rates, price calculations, and the latest news on gift cards. It serves as a one-stop destination for individuals looking to buy, sell, or stay informed about the world of gift cards.

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Top Alternatives to O

0.0(0 ratings)
Free
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This app offers essential calculation tools for pneumatic systems, aiding in automation system design and equipment selection. It helps users determine cylinder force, speed, air consumption, and estimate costs, streamlining work with pneumatic components.

More apps like O

4
SKF Super-precision manager
SKF Super-precision manager
SKF Super-precision manager
Keep track of your SuPB assets
Free
📊 Productivity
(0)
5
MechTab
MechTab
MechTab
The mechanic's helper tool
Free

This app offers a comprehensive set of tools for mechanics, providing essential data on tolerances, threads, cutting speeds, wrench sizes, and roughness. It also includes calculators for material weight, triangle properties, and trowalisation.

ISO-Tolerance data (holes and shafts)Thread specificationsCutting data calculations
📊 Productivity
(16)
free
6
Mechanical Engineer
Mechanical Engineer
Mechanical Engineer
by Historycentral.com
Free

This app provides over 300 essential mechanical engineering formulas across various domains. It allows users to calculate, save, compare, and share results, aiding in project optimization and decision-making. Users can access a limited number of calculations for free, with a subscription unlocking full functionality.

Over 300 mechanical engineering formulasCovers diverse engineering domainsSave and compare formula results
📊 Productivity
(8)
free with in-app purchases
7
Walter Machining Calculator
Walter Machining Calculator
Walter Machining Calculator
by Walter-AG
Free

Calculate machining time, power, torque, and cutting force for various operations. Compare existing tools with new ones to project potential savings.

Calculate machining time, power, and torqueDetermine cutting force and metal removal rateSupport for milling, drilling, boring, turning, and grooving
📊 Productivity
(5)
free
8
SolidInsight
SolidInsight
SolidInsight
View CAD without format worry
Free

View and collaborate on 2D and 3D CAD files on your mobile device without needing expensive desktop software. Measure designs, access properties, and share feedback instantly.

Supports major 2D/3D CAD formatsView models and drawings on mobileMeasure design dimensions
📊 Productivity
(7)
free with in-app purchases
9
OriginCheck
OriginCheck
OriginCheck
by Schaeffler
Free

Verify the authenticity of Schaeffler products and dealer certificates by scanning unique 2D codes. Receive immediate feedback on originality and get guided instructions for suspected counterfeiting, including direct contact with the brand protection team.

Verify 2D product codesCheck dealer certificatesReport suspected counterfeiting
📊 Productivity
(1)
free
10
Metal and Liquid Calculator
Metal and Liquid Calculator
Metal and Liquid Calculator
Material Cost Length & Weight
Free

This app accurately calculates the weight, length, and cost of various metals and liquids. It supports a wide range of materials and shapes, offering multiple unit options for precise measurements and financial planning.

Liquid volume and weight conversionMetal weight and length calculationBulk measurement calculations
📊 Productivity
(1)
free with in-app purchases