# H2Calcs — Calcs and Facts for Hydrogen

> Hydrogen application calculations and fast facts tool. (iPhone/iPad app by Mingxuan Fan.)

- Source: https://appshunter.io/ios/app/h2calcs/id1629543419 (this page in markdown: same URL + `.md`)
- Developer: [Mingxuan Fan](https://appshunter.io/developer/1551041000)
- Category: Productivity, Education
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 13.0 · 2 MB
- Languages: English
- Released: 2022-06-22
- Data updated: 2026-07-30
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/h2calcs/id1629543419/reviews.md

## What is H2Calcs?

A tool-box App for Hydrogen Application, which includes

Four Calculations:
- Fueling Time
- Vessel Capacity
- Flow Rate Conversion
- Conversion of Hydrogen Energy

Three fast fact checks
- Fuel Properties: Hydrogen, CNG, Gasoline, etc
- Colors of Hydrogen: Green, Blue and Grey
- Electrolyser: Alkaline, PEM, SOEC, AEM

Two Lists
-  Videos related to Hydrogen, Electrolyser, etc
-  Links of Hydrogen-related Organizations, Journals, etc

## Key features

- Fueling Time Calculation
- Vessel Capacity Calculation
- Flow Rate Conversion
- Hydrogen Energy Conversion
- Fuel Properties Facts
- Hydrogen Color Facts
- Electrolyzer Types


## Frequently asked questions about H2Calcs

### What calculations does H2Calcs offer?

H2Calcs offers four key calculations: Fueling Time, Vessel Capacity, Flow Rate Conversion, and Conversion of Hydrogen Energy. These tools are designed to assist with common hydrogen application tasks.

### What kind of fast facts are available in H2Calcs?

H2Calcs provides fast facts on Fuel Properties (Hydrogen, CNG, Gasoline, etc.), Colors of Hydrogen (Green, Blue, Grey), and Electrolyzer types (Alkaline, PEM, SOEC, AEM). This information is presented concisely for quick reference.

### Does H2Calcs have ads?

No, H2Calcs does not contain advertisements. The app is completely free and ad-free, providing an uninterrupted user experience.

### What platforms is H2Calcs available on?

H2Calcs is currently available for iPhone and iPod devices. Future platform expansions may be considered based on user demand.

### How often is H2Calcs updated?

H2Calcs was last updated on June 22, 2022, with version 1.0.6. Further updates will be released as needed to improve functionality and add new features.

### What is the age rating for H2Calcs?

H2Calcs has an age rating of 4+, making it suitable for a wide range of users. The content is generally appropriate for younger audiences interested in the topic.

### Can I find external resources through H2Calcs?

Yes, H2Calcs includes lists of relevant videos and links to Hydrogen-related Organizations and Journals. This helps users explore the topic further and access additional educational materials.

### What is the user sentiment for H2Calcs?

Based on available data, H2Calcs has received a perfect 5.0-star rating from one review. This indicates a highly positive initial user reception.

## Version history (last 1 release)

### 1.0.6 — 2022-06-22

No release notes.

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## More apps by Mingxuan Fan

- [ComprCheck](https://appshunter.io/ios/app/comprcheck/id1551040998)

All apps by Mingxuan Fan: https://appshunter.io/developer/1551041000

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-30.*