Comparison

O vs Tech Companion

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read 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

About

Tech Companion

Features
Read full description

Tech Companion is a software platform for field workers who operate and maintain complex assets and brings together digitalized work instructions, 3D visualizations of procedures and Augmented reality remote support. Tech Companion delivers insights through an intuitive interface for data visualization, in-service augmented reality remote support, visualized 3D work instructions, and immersive training that is platform agnostic (Tablet, phone, PC, Mobile, 3D, VR/AR) and backed by industry-leading security credentials. Tech Companion acts as a single-access point for all enterprise-data relevant to maintenance and operations of physical equipment. As a highly extensible solution, Tech Companion’s modules comprise an umbrella of enterprise solutions that integrate with enterprise client’s existing tech ecosystem and their data to to streamline the way complex assets are operated and maintained, forming a digital service-hub for technicians and operators to access relevant data for the task and condition of an asset and facilitate connectivity. Tech Companion is scalable and modular, enabling organizations to select the modules for their digital service hub to address their business needs with offline and on-premise capabilities. Tech Companion enables secure collaboration and creates new ways for businesses to improve productivity, enhance quality and create safer work environments. Modules: REMOTE SUPPORT: Connect with an expert to guide tasks from anywhere securely, and on-demand Connect remotely with a specialist on-demand, to assist with guided communication (chat, VOIP, video & AR) and annotation to complete tasks. Remote expert connects workers for work instructions, visual guidance and remote collaboration accessible across device platforms and end-to-end encrypted chat, VoIP and video. • Image capture and document sharing • Remote support texting • On screen annotations and markup • Role management across remote support application • One time session links for connectivity via browser DIGITAL WORK CARDS: Transform your maintenance and operational manuals into a digital work card for streamlined operations and maintenance. Digital Work Cards enable improvement of front line processes and fewer workforce or operational disruptions. The Digital Work Cards provide access to technical work packages for work to be performed and all work details - maintenance manuals, technician notes, and historical work-task data. A comprehensive digital work card within this database enables legacy data capture and capture of senior technician best practices and guidance for future reference. Technical staff and operations have all the information at their fingertips- able to access operational and maintenance task lists, technical manuals, technician notes, and all service record history for planning, visualizing, and optimizing maintenance processes. • Configuration of the digital work cards to meet client task and data-gathering requirements • Designed /formatted however you intend to use it. (Ex: Your Technicians work orders, Task and Maintenance “to-do list”) • AI-Integrated Automated capture of data relevant to technician, task times etc. to support future predictive maintenance and analysis. XR Training Access on-demand & self-paced XR training to support maintenance tasks. Flexible delivery of training to pre-perform tasks or learn procedural maintenance instructions or assembly/disassembly from PC, Mobile, Tablet, VR, or AR. Creation of XR Training is as easy as Powerpoint - no coding or expertise is required and training is created with data already at hand - 3D models, Videos, PDFs, manuals and more.

Screenshots

O4 screens
Tech Companion4 screens

Verdict

The call

The clearest difference is iOS requirement: O at 12.1 against Tech Companion's 14.0. On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

O ships an update every 3 months, Tech Companion every 2 months. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.

Scorecard1 real difference · 9 level
O versus Tech Companion: the parameters behind the verdict, then further details
ParameterOTech Companion
PriceFreeFree
Rating3.8 (5 ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings5 — better—
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.1 — better14.0
Further details — not scored
Size26 MB771 MB
Age rating12+4+
DeveloperTrelleborg Sealing SolutionsModest Tree Media

In-app purchases

None

O

No in-app purchases

None

Tech Companion

No in-app purchases

Questions

Is O free?
O is free to download, with no in-app purchases.
Is Tech Companion free?
Tech Companion is free to download, with no in-app purchases.
Do O or Tech Companion have ads?
Neither O nor Tech Companion shows ads.
Which is updated more often, O or Tech Companion?
O ships an update every 3 months, and Tech Companion every 2 months. Most recently, O was updated on October 12, 2026 and Tech Companion on October 4, 2026.

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