Comparison

LIVING OZONE vs GTP API Gravity Calculator2

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

Head to head
About

LIVING OZONE

Features
Read full description

LIVING OZONE is a hardware device management software Connect hardware devices via wifi. Hardware camera data can be viewed through the app You can take and save photos

About

GTP API Gravity Calculator2

This application calculates the corrected API gravity at 60°F for jet, gasoline, and diesel fuels. It also determines the total weight of the fuel. It's a digital replacement for physical slide calculators.

Highlights
  • Corrected API gravity calculation
  • Total fuel weight calculation
  • Supports jet, gasoline, and diesel fuels
  • Digital version of slide calculators
  • Developed in 2025
Features
Currently charting
Read full description

The GTP API Gravity Calculator v2 (Developed 2025) from Gammon Technical Products, Inc. provides users the ability to determine corrected API at 60 Deg F for jet, gasoline, and diesel fuels. The calculator is a digital version of our GTP-3012-1A and GTP-2727EF slide calculators and it also is capable of calculating the total weight of the fuel.

Screenshots

LIVING OZONE3 screens
GTP API Gravity Calculator21 screens

Verdict

The call

The clearest difference is price: LIVING OZONE at Free against GTP API Gravity Calculator2's $9.99. LIVING OZONE also leads on iOS requirement (10.0 vs 12.0). GTP API Gravity Calculator2's advantage is chart position (#176 vs unranked). On 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

LIVING OZONE is free to download; GTP API Gravity Calculator2 costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard3 real differences · 8 level
LIVING OZONE versus GTP API Gravity Calculator2: the parameters behind the verdict, then further details
ParameterLIVING OZONEGTP API Gravity Calculator2
PriceFree — better$9.99
Rating—4.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequency—Every 2 months
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
Best chart rank—#176 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS10.0 — better12.0
Further details — not scored
Size36 MB9 MB
Age rating4+4+
Developer红奎 刘Gammon Technical Products

In-app purchases

None

LIVING OZONE

No in-app purchases

None

GTP API Gravity Calculator2

No in-app purchases

Questions

Is LIVING OZONE free?
LIVING OZONE is free to download, with no in-app purchases.
Is GTP API Gravity Calculator2 free?
GTP API Gravity Calculator2 costs $9.99, with no in-app purchases.
Do LIVING OZONE or GTP API Gravity Calculator2 have ads?
Neither LIVING OZONE nor GTP API Gravity Calculator2 shows ads.

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