Comparison

O vs GameSmart

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

Head to head
About

O

Features
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Who hasn't sometimes wished for assistance when it comes to define the mounting dimensions for O-Rings or even find the right O-Ring? The Hutchinson O-Ring app offers precious tools: • Assembly aid, depending on the installation type (in a bore, on a piston, cover fitting with internal or external pressure) • Compounds compatibility with various fluids • Intelligent O-Ring measuring tool with the smartphone's camera function • Dimensions list for standard parts You can choose a reference number from thousands of available O-Rings and then precisely define the groove dimensions to ensure perfect sealing. On the contrary, after choosing the installation type and the groove dimensions, the app will recommend a list of compatible O-Ring dimensions. A smart measuring tool has been developed to measure your O-Rings dimensions. This can for instance be used in MRO for easy replacement. Take a coin to set the standard and watch your smartphone turn into a digital measure tool for precision seals! If chemistry classes are bad memories for you, the compound compatibility tool will help you to define the appropriate compound family, depending on the fluid used in your application. Bonus : get the PDF calculation results per email ! In order to confirm your choice, we recommend to validate with tests

About

GameSmart

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GameSmart, l’application serious game qui permet aux collaborateurs de travailler la cohésion d’équipe tout en découvrant le geo-caching.

Screenshots

O4 screens
GameSmart2 screens

Verdict

The call

The clearest difference is update cadence: GameSmart at fortnightly against O's every 6 weeks. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

O ships an update every 6 weeks, GameSmart fortnightly. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

Scorecard1 real difference · 5 level
O versus GameSmart: the parameters behind the verdict, then further details
ParameterOGameSmart
PriceFreeFree
Update frequencyEvery 6 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size40 MB48 MB
Age rating4+4+
DeveloperHUTCHINSONArnaud Delrue

In-app purchases

None

O

No in-app purchases

None

GameSmart

No in-app purchases

Questions

Is O free?
O is free to download, with no in-app purchases.
Is GameSmart free?
GameSmart is free to download, with no in-app purchases.
Do O or GameSmart have ads?
Neither O nor GameSmart shows ads.
Which is updated more often, O or GameSmart?
O ships an update every 6 weeks, and GameSmart fortnightly. Most recently, O was updated on September 9, 2026 and GameSmart on September 10, 2026.

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