Comparison

O vs PacScan Protect your Shipment

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

PacScan Protect your Shipment

Features
Read full description

The PacScan app provides a simple and powerful way to save the status of your shipment and integrate a Tracking Shipment Service. You can record images of your shipment and store them locally on your device. Associate the shipment data with a code (you can scan any type of code directly with the camera). Generate a report when you need it to demonstrate the status of your shipment at a specific point in time. All data is stored locally in a database saved on your device. By using this app, you agree to our Terms of Use: https://www.ecphx.eu/en/pacscan-terms-and-conditions and Privacy Policy: https://www.ecphx.eu/en/pacscan-terms-and-conditions.

Screenshots

O4 screens
PacScan Protect your Shipment4 screens

Verdict

The call

The clearest difference is in-app purchases: O at none against PacScan Protect your Shipment's 2. PacScan Protect your Shipment's advantage is update cadence (every 9 days vs every 3 months) and iOS requirement (12.0 vs 26.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PacScan Protect your Shipment sells 2 in-app purchases, starting at $2.99 per month. O asks for nothing beyond the download.

UpkeepUpdate frequency

O ships an update every 3 months, PacScan Protect your Shipment every 9 days. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
O versus PacScan Protect your Shipment: the parameters behind the verdict, then further details
ParameterOPacScan Protect your Shipment
PriceFreeFree
Rating3.8 (5 ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings5 — better—
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.012.0 — better
Further details — not scored
Size35 MB20 MB
Age rating4+4+
DeveloperTrelleborg Sealing SolutionsAwal Salifu

In-app purchases

None

O

No in-app purchases

2 purchases

PacScan Protect your Shipment

Subscriptions1
  • PacScan Premium$2.991 Month
One-time1
  • Remove all the ADS$2.99

Questions

Is O free?
O is free to download, with no in-app purchases.
Is PacScan Protect your Shipment free?
PacScan Protect your Shipment is free to download, with in-app purchases available.
Do O or PacScan Protect your Shipment have ads?
Neither O nor PacScan Protect your Shipment shows ads.
Which is updated more often, O or PacScan Protect your Shipment?
O ships an update every 3 months, and PacScan Protect your Shipment every 9 days. Most recently, O was updated on November 5, 2026 and PacScan Protect your Shipment on October 30, 2026.

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