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Comparison

O vs 工程岩体分级

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

Head to head
O-Pit Blasting Guide
O
Free
🔧 Utilities
No ratingsView app →
工程岩体分级
工程岩体分级
Free
🔧 Utilities
No ratingsView app →
About

O

Features
Read full description

Some of the main features of the application are: • Calculator: easily define what the geometrical parameters for rock blasting should be. • Safety: Measure the ground vibration and acoustics levels of the blast site. • Data tables: Find out acceptable levels of vibration, glossary used in the explosive industry, linear charge of the explosive according to different diameters and desities of explosive and etc. • Products: Learn more about the range of solutions O-Pitblast can offer you to optimize your drilling and rock blasting solutions.

About

工程岩体分级

Features
Read full description

The engineering rock mass classification calculator is synthesized in Chinese and English. By selecting the indexes of rock mass classification, the rock mass classification is determined.

Screenshots

O4 screens
工程岩体分级3 screens

Verdict

The call

The clearest difference is ads: 工程岩体分级 at none against O's shown. O's advantage is update cadence (every 2 weeks vs every 15 months) and iOS requirement (12.0 vs 15.0). On price, 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 2 weeks, 工程岩体分级 every 15 months. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 3 level
O versus 工程岩体分级: the parameters behind the verdict, then further details
ParameterO工程岩体分级
PriceFreeFree
Update frequencyEvery 2 weeks — betterEvery 15 months
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size52 MB36 MB
Age rating4+4+
DeveloperO-Pitblast, Lda.靖奇 崔

In-app purchases

None

O

No in-app purchases

None

工程岩体分级

No in-app purchases

Questions

Is O free?
O is free to download, with no in-app purchases.
Is 工程岩体分级 free?
工程岩体分级 is free to download, with no in-app purchases.
Do O or 工程岩体分级 have ads?
O shows ads; 工程岩体分级 does not.
Which is updated more often, O or 工程岩体分级?
O ships an update every 2 weeks, and 工程岩体分级 every 15 months. Most recently, O was updated on October 18, 2026 and 工程岩体分级 on October 24, 2026.

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