# ASTM 54 B vs Brussels Metro by devatwork

The clearest difference is price: Brussels Metro by devatwork at Free against ASTM 54 B's $9.99. Brussels Metro by devatwork also leads on iOS requirement (15.1 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Brussels Metro by devatwork is free to download; ASTM 54 B costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ASTM 54 B | Brussels Metro by devatwork |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Monetization | Paid | — |
| Size | 1 MB | 43 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Oleksii Nezhalskyi](https://appshunter.io/developer/1687730603) | [DEVATWORK BV](https://appshunter.io/developer/1815502595) |

## What reviewers say

### ASTM 54 B

[App page](https://appshunter.io/ios/app/astm-54-b/id6449903055)

This application calculates fuel weight for ships based on ASTM 54 B standards. Users input volume and observed temperature to receive precise calculations.

**Highlights:** ASTM 54 B fuel weight calculation, Input volume and temperature, Automatic calculation, User-friendly interface

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

**In-app purchases:** none


### Brussels Metro by devatwork

[App page](https://appshunter.io/ios/app/brussels-metro-by-devatwork/id6756612338)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ASTM 54 B free?

ASTM 54 B costs $9.99, with no in-app purchases.

### Is Brussels Metro by devatwork free?

Brussels Metro by devatwork is free to download, with no in-app purchases.

### Do ASTM 54 B or Brussels Metro by devatwork have ads?

Neither ASTM 54 B nor Brussels Metro by devatwork shows ads.

---

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