# GTP API Gravity Calculator2 vs G's Breeze

The clearest difference is price: G's Breeze at Free against GTP API Gravity Calculator2's $9.99. G's Breeze also leads on rating (5.0 vs 4.0). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

G's Breeze 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.

G's Breeze holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

GTP API Gravity Calculator2 ships an update every 2 months, G's Breeze every 5 weeks. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | GTP API Gravity Calculator2 | G's Breeze |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/gtp-api-gravity-calculator2/id6742924006/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gs-breeze/id6744819243/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 9 MB | 38 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gammon Technical Products](https://appshunter.io/developer/1163782116) | [G's Breeze](https://appshunter.io/developer/1809353542) |

## What reviewers say

### GTP API Gravity Calculator2

[App page](https://appshunter.io/ios/app/gtp-api-gravity-calculator2/id6742924006)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### G's Breeze

[App page](https://appshunter.io/ios/app/gs-breeze/id6744819243)

Control your smart aroma diffusers to create a personalized and elevated scent experience in any space. Effortlessly manage fragrance settings from your smartphone for a more convenient and sophisticated atmosphere at home or in commercial settings.

**Highlights:** Effortless scent control, Personalized atmosphere creation, Intuitive smartphone interface, Residential and commercial use, Premium fragrance experience

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GTP API Gravity Calculator2 free?

GTP API Gravity Calculator2 costs $9.99, with no in-app purchases.

### Is G's Breeze free?

G's Breeze is free to download, with no in-app purchases.

### Which has better reviews, GTP API Gravity Calculator2 or G's Breeze?

G's Breeze is rated higher. GTP API Gravity Calculator2 averages 4.0 out of 5 from 1 ratings, while G's Breeze averages 5.0 from 1 ratings.

### Do GTP API Gravity Calculator2 or G's Breeze have ads?

Neither GTP API Gravity Calculator2 nor G's Breeze shows ads.

### Which is updated more often, GTP API Gravity Calculator2 or G's Breeze?

GTP API Gravity Calculator2 ships an update every 2 months, and G's Breeze every 5 weeks. Most recently, GTP API Gravity Calculator2 was updated on November 4, 2026 and G's Breeze on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*