# Gas Converter vs Project Plan 365

The clearest difference is rating: Gas Converter at 4.7 against Project Plan 365's 3.3. Gas Converter also leads on in-app purchases (none vs 1) and review sentiment (50% vs 21%). Project Plan 365's advantage is update cadence (every 2 months vs every 10 months). On price, ads and device support there is nothing between them.

Both are free to download. Project Plan 365 sells 1 in-app purchase, starting at $129.99 per year. Gas Converter asks for nothing beyond the download.

Gas Converter holds the better App Store score, 4.7 against 3.3. Both are backed by a comparable volume of ratings — 201 and 41 respectively. Written reviews point the same way: 50% of Gas Converter's written reviews are positive against 21% of Project Plan 365's.

Gas Converter ships an update every 10 months, Project Plan 365 every 2 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | Gas Converter | Project Plan 365 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (201 ratings)](https://appshunter.io/ios/app/gas-converter/id681227665/reviews)** | [3.3 (41 ratings)](https://appshunter.io/ios/app/project-plan-365/id742239541/reviews) |
| Number of ratings | **201** | 41 |
| Positive reviews | **50.0% of reviews** | 20.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | **Free** | Subscription |
| Size | 68 MB | 95 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Linde GmbH](https://appshunter.io/developer/657403417) | [Housatonic.com](https://appshunter.io/developer/463199298) |

## What reviewers say

### Gas Converter

[App page](https://appshunter.io/ios/app/gas-converter/id681227665)

Easily convert volumetric to weight-based units for 15 industrial gases. Get additional information like enthalpy and boiling points. Simple three-step process for quick calculations.

**Highlights:** Convert volumetric to weight units, Supports 15 industrial gases, Provides enthalpy and boiling point data, Calculates values at different temperatures, Simple three-step conversion process, Sleek and usable design

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

**In-app purchases:** none


### Project Plan 365

[App page](https://appshunter.io/ios/app/project-plan-365/id742239541)

This app offers robust project planning and collaboration features for individuals and teams. It allows users to view, edit, and create Microsoft Project files on iOS devices, supporting various standard views and reports. Seamlessly integrate with cloud storage for easy access and sharing.

**Highlights:** MS Project file compatibility (MPP), Project planning and collaboration, Supports standard MS Project views, Cloud storage integration, Create and edit project plans, Critical path analysis and reports

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Complete Editor | $129.99 | per year |


## Frequently asked questions

### Is Gas Converter free?

Gas Converter is free to download, with no in-app purchases.

### Is Project Plan 365 free?

Project Plan 365 is free to download, with in-app purchases available.

### Which has better reviews, Gas Converter or Project Plan 365?

Gas Converter is rated higher. Gas Converter averages 4.7 out of 5 from 201 ratings, while Project Plan 365 averages 3.3 from 41 ratings.

### Do Gas Converter or Project Plan 365 have ads?

Neither Gas Converter nor Project Plan 365 shows ads.

### Which is updated more often, Gas Converter or Project Plan 365?

Gas Converter ships an update every 10 months, and Project Plan 365 every 2 months. Most recently, Gas Converter was updated on October 26, 2026 and Project Plan 365 on October 26, 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.*