# Inskrib vs GTP API Gravity Calculator2

The clearest difference is price: Inskrib at Free against GTP API Gravity Calculator2's $9.99. Inskrib also leads on rating (5.0 vs 4.0) and iOS requirement (9.0 vs 12.0). GTP API Gravity Calculator2's advantage is update cadence (every 2 months vs every 6 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Inskrib 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.

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

Inskrib ships an update every 6 months, GTP API Gravity Calculator2 every 2 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Inskrib | GTP API Gravity Calculator2 |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/inskrib/id1076851736/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/gtp-api-gravity-calculator2/id6742924006/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | **Free** | Paid |
| Size | 19 MB | 9 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Inskrib Inc.](https://appshunter.io/developer/1076851735) | [Gammon Technical Products](https://appshunter.io/developer/1163782116) |

## What reviewers say

### Inskrib

[App page](https://appshunter.io/ios/app/inskrib/id1076851736)

Control a portable LED display device remotely to showcase a variety of messages and emojis. Ideal for marketing, events, and personal use, it allows for quick message changes up to 30 feet away. The app also handles warranty registration and message organization.

**Highlights:** Remote LED display control, Customizable messages, Emoji support, Message reordering, Up to 99 messages, Warranty registration

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Inskrib free?

Inskrib 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.

### Which has better reviews, Inskrib or GTP API Gravity Calculator2?

Inskrib is rated higher. Inskrib averages 5.0 out of 5 from 1 ratings, while GTP API Gravity Calculator2 averages 4.0 from 1 ratings.

### Do Inskrib or GTP API Gravity Calculator2 have ads?

Neither Inskrib nor GTP API Gravity Calculator2 shows ads.

### Which is updated more often, Inskrib or GTP API Gravity Calculator2?

Inskrib ships an update every 6 months, and GTP API Gravity Calculator2 every 2 months. Most recently, Inskrib was updated on October 20, 2026 and GTP API Gravity Calculator2 on October 24, 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.*