Comparison

O vs Torque Unit CVT

Price, ratings, monetisation and update history for both apps, side by side β€” 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: β€’ Assembly aid, depending on the installation type (in a bore, on a piston, cover fitting with internal or external pressure) β€’ Compounds compatibility with various fluids β€’ Intelligent O-Ring measuring tool with the smartphone's camera function β€’ 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

Torque Unit CVT

Easily convert torque units with this straightforward tool. It supports conversions between N-m, N-cm, mNm, kgf-m, kgf-cm, and gf-cm. The conversion happens instantly as you input values.

Highlights
  • Torque unit conversion
  • Supports N-m, N-cm, mNm, kgf-m, kgf-cm, gf-cm
  • Instant conversion upon input
  • Simple and intuitive interface
Features
Read full description

This app converts units of torque. Convert from N-m, N-cm, mNm, kgf-m, kgf-cm, gf-cm to another unit. The conversion takes place as soon as you enter the value.

Screenshots

O4 screens
Torque Unit CVT2 screens

Verdict

The call

O and Torque Unit CVT are too close to call on the numbers: across 6 compared parameters β€” price, update cadence, ads and in-app purchases among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· 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, Torque Unit CVT every 2 months. The most recent releases landed on September 9, 2026 and July 27, 2026 respectively.

ScorecardNo meaningful differences
O versus Torque Unit CVT: the parameters behind the verdict, then further details
ParameterOTorque Unit CVT
PriceFreeFree
Positive reviewsβ€”0.0% of reviews
Update frequencyEvery 6 weeks β€” betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
Monetizationβ€”Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 β€” better12.1
Further details β€” not scored
Size40 MB11 MB
Age rating4+4+
DeveloperHUTCHINSONHidenori Ishii

In-app purchases

None

O

No in-app purchases

None

Torque Unit CVT

No in-app purchases

Questions

Is O free?
O is free to download, with no in-app purchases.
Is Torque Unit CVT free?
Torque Unit CVT is free to download, with no in-app purchases.
Do O or Torque Unit CVT have ads?
Neither O nor Torque Unit CVT shows ads.
Which is updated more often, O or Torque Unit CVT?
O ships an update every 6 weeks, and Torque Unit CVT every 2 months. Most recently, O was updated on September 9, 2026 and Torque Unit CVT on July 27, 2026.

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