Comparison

O vs The Phillips Machinist

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 suitable O-ring sizes based on installation specifications. It supports metric and inch measurements and offers chemical compatibility checks for various media.

Highlights
  • O-Ring housing calculation
  • O-Ring size recommendation
  • Quick search by international standards
  • Tolerance calculation
  • Metric and inch unit switching
  • Chemical compatibility check
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

The Phillips Machinist

Access essential machine codes, calculators, and practical resources for machinists. Get direct support from engineers and explore a library of machining information. Enhance your productivity and problem-solving on the shop floor.

Highlights
  • Haas G & M reference codes
  • Error and Alarm Codes
  • Calculator library (Inch/Metric)
  • Speeds & Feeds calculator
  • Direct contact with engineers
  • Customizable machine and interest tracking
  • FAQ library
Features
Read full description

The Phillips Machinist is your personalized digital manufacturing assistant, with quick access to essential machine codes and calculators, direct contact with Phillips engineers, and practical resources designed to make your life easier. Spark your ingenuity with the Phillips Machinist, the only App you’ll need to succeed! The completely redesigned Phillips Machinist delivers a next level experience offering these key benefits: EASY ACCESS TO CODES AND MANUALS A few clicks and you can access Haas G & M reference codes, Error and Alarm Codes, Macro Variables, and functions – and find information on how to apply them to your machines. Right away. Right on the shop floor. Explore our additional libraries with items from Okamoto, Hermle, Kent, Universal Robots and Markforged. CALCULATOR LIBRARY Enhanced everyday Calculators for the CNC Machinist in both Inch and Metric wherever applicable. Now featuring an information page that not only explains how to use the calculator but also the core concepts behind it! Some inputs have been configured to show suggested ranges for the optimal performance of a CNC program to keep you on the cutting edge. The Result section provides accurate outputs along with supportive images for better understanding of the concept and the results are further fortified with an abundance of videos and articles related to that particular calculator. For example: In the Material Library and Speeds & Feeds Calculator, we have added Haas “Tip of the Day” videos, specifically talking about how the spindle speed and feed-rates affect the surface finish of a machined part. All of this is provided at your fingertips. You’ll have access to these calculators that help make your job easier on the shop floor. From Single Point Thread Turning to Speeds & Feeds we’ve got you covered. With 15 calculators and counting! • Single Point Thread Turning • Mat. Library-Speed & Feeds • Simple Speed & Feeds • Square Hex • Tap Drill - Cutting Tap • Tap Drill - Thread Forming • True Position • Bolt Circle • Countersink • Right Angle Triangle • Drill Tip Depth • Socket Head Cap Screw • Helicoil Tap Drill • Simple Bolt Clearance Chart • Simple Drill Chart A PERSONALIZED EXPERIENCE Your machines and your interests are at the forefront. Keep tabs on your machines, and requests right on your homepage. Look at custom curated videos and manuals to take your knowledge to the next level. See what is trending by checking out our featured trending topics. Favorite your most used manuals to keep everything just the way you want it! ASK THE EXPERTS Running into problems on the shop floor? Ask “live” questions to some of the country’s premier applications engineers. The “Ask Joe” section gives you a direct link to the Phillips applications team. Our vast FAQ library has a wealth of knowledge from general machining, 5-axis, and more! Any questions/or concerns, please reach out to us. We would love to hear from you through the app, or at tpm@phillipscorp.com

Screenshots

O4 screens
The Phillips Machinist4 screens

Verdict

The call

The clearest difference is rating: The Phillips Machinist at 4.6 against O's 3.8. The Phillips Machinist also leads on ratings volume (394 vs 5) and iOS requirement (15.6 vs 26.0). O's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, review sentiment, update cadence 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.

ReceptionRating · Positive reviews · Number of ratings

The Phillips Machinist holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: The Phillips Machinist has 394 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 83% of O's written reviews are positive against 78% of The Phillips Machinist's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

O ships an update every 3 months, The Phillips Machinist every 6 weeks. Both last shipped on November 2, 2026.

Scorecard5 real differences · 5 level
O versus The Phillips Machinist: the parameters behind the verdict, then further details
ParameterOThe Phillips Machinist
PriceFreeFree
Rating3.8 (5 ratings)4.6 (394 ratings) — better
Positive reviews83.3% of reviews — better78.3% of reviews
Number of ratings5394 — better
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.6 — better
Further details — not scored
Size35 MB152 MB
Age rating4+4+
DeveloperTrelleborg Sealing SolutionsPhillips Corporation

Customer experience

O

All ratings5 ratings
Positive60.0%
Neutral20.0%
Negative20.0%
Written reviews12 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

The Phillips Machinist

All ratings394 ratings
Positive90.6%
Neutral4.3%
Negative5.1%
Written reviews60 reviews
Positive78.3%
Neutral3.3%
Negative18.3%

Bugs and requests

O

Not enough reviews yet to summarise bugs or requests.

The Phillips Machinist

Reported bugs

11 issues
  • Cannot sign in via Apple
  • Password incorrect error
  • Cannot reset password
  • White screen on speed and feeds calculator (iPhone)
  • Speeds and feeds calculator boxes not proper
Show 6 more
  • Unable to login, registration error
  • Blank white screen after update
  • Signup not working
  • Unable to select country for signup
  • App crashes on launch
  • No volume on videos

Requested features

4 requests
  • Fix sign-in issues
  • Resolve white screen on calculator
  • Enable offline functionality
  • Add volume to videos

In-app purchases

None

O

No in-app purchases

None

The Phillips Machinist

No in-app purchases

Questions

Is O free?
O is free to download, with no in-app purchases.
Is The Phillips Machinist free?
The Phillips Machinist is free to download, with no in-app purchases.
Which has better reviews, O or The Phillips Machinist?
The Phillips Machinist is rated higher. O averages 3.8 out of 5 from 5 ratings, while The Phillips Machinist averages 4.6 from 394 ratings.
Do O or The Phillips Machinist have ads?
The Phillips Machinist shows ads; O does not.
Which is updated more often, O or The Phillips Machinist?
O ships an update every 3 months, and The Phillips Machinist every 6 weeks. Most recently, O was updated on November 2, 2026 and The Phillips Machinist on November 2, 2026.

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