Comparison

BLESS vs Idemitsu Smart OC

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

Head to head
About

BLESS

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About

Idemitsu Smart OC

This app enables on-site lubricant analysis using a smartphone camera. It assesses lubricant degradation and contamination by analyzing photos, providing numerical data to help detect anomalies and ensure stable machinery operation.

Highlights
  • On-site lubricant diagnosis
  • Photo-based analysis
  • Degradation status assessment
  • Contamination level calculation
  • Historical data access
  • Early anomaly detection
Features
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Idemitsu Smart OC is an app that allows for easy on-site diagnosis of lubricant degradation and contamination. Traditionally, in lubrication environments, evaluation could only be performed qualitatively through visual observation, and quantitative assessments required sending samples to testing facilities equipped with analytical instruments. However, with Idemitsu Smart OC, you can simply take a photo of the lubricant using a smartphone, enabling you to assess its degradation and contamination status based on numerical data. Lubricants are often referred to as the "blood" of machines, making it crucial to understand their condition in order to gauge the overall state of the machinery. By utilizing Idemitsu Smart OC, you can detect lubrication anomalies early, contributing to the stable operation of machines. What Idemitsu Smart OC can do: 1) Perform analysis based on lubricant analysis data, determining the remaining lifespan percentage from the color of the lubricant (degradation status). 2) Calculate the amount and size of contaminants (contamination status). 3) Access historical data on a connected website for further review. To use this app, you need a dedicated module to keep the shooting environment constant and an internet communication environment.

Screenshots

BLESS1 screens
Idemitsu Smart OC3 screens

Verdict

The call

The clearest difference is update cadence: Idemitsu Smart OC at every 3 weeks against BLESS's every 3 months. BLESS's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 18.6). On price, 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

BLESS ships an update every 3 months, Idemitsu Smart OC every 3 weeks. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

Scorecard3 real differences ¡ 5 level
BLESS versus Idemitsu Smart OC: the parameters behind the verdict, then further details
ParameterBLESSIdemitsu Smart OC
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better18.6
Further details — not scored
Size66 MB15 MB
Age rating17+4+
DeveloperPAI-R Co., Ltd.Idemitsu Kosan Co.,Ltd.

In-app purchases

None

BLESS

No in-app purchases

None

Idemitsu Smart OC

No in-app purchases

Questions

Is BLESS free?
BLESS is free to download, with no in-app purchases.
Is Idemitsu Smart OC free?
Idemitsu Smart OC is free to download, with no in-app purchases.
Do BLESS or Idemitsu Smart OC have ads?
Neither BLESS nor Idemitsu Smart OC shows ads.
Which is updated more often, BLESS or Idemitsu Smart OC?
BLESS ships an update every 3 months, and Idemitsu Smart OC every 3 weeks. Most recently, BLESS was updated on September 9, 2026 and Idemitsu Smart OC on September 18, 2026.

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