# MPG Calculator vs Barcelona Subway Map

The clearest difference is update cadence: MPG Calculator at every 2 weeks against Barcelona Subway Map's every 16 months. MPG Calculator also leads on iOS requirement (7.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MPG Calculator ships an update every 2 weeks, Barcelona Subway Map every 16 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | MPG Calculator | Barcelona Subway Map |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/mpg-calculator/id909869927/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 16 months |
| Monetization | Free | — |
| Size | 0 MB | 40 MB |
| Requires iOS | **7.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [George Richardson](https://appshunter.io/developer/1527034170) | [Yaroslav Mykolaienko](https://appshunter.io/developer/1711921558) |

## What reviewers say

### MPG Calculator

[App page](https://appshunter.io/ios/app/mpg-calculator/id909869927)

Easily calculate fuel efficiency in Litres/100kms or Miles/gallon using US or UK gallons. Input your journey's odometer readings and fuel used to get instant results. The app also converts between different fuel units for your convenience.

**Highlights:** Calculate Litres/100kms, Calculate Miles/gallon (US/UK), Convert between fuel units, Simple odometer input, Fuel usage tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### Barcelona Subway Map

[App page](https://appshunter.io/ios/app/barcelona-subway-map/id6478735676)

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

**In-app purchases:** none


## Frequently asked questions

### Is MPG Calculator free?

MPG Calculator is free to download, with no in-app purchases.

### Is Barcelona Subway Map free?

Barcelona Subway Map is free to download, with no in-app purchases.

### Do MPG Calculator or Barcelona Subway Map have ads?

Neither MPG Calculator nor Barcelona Subway Map shows ads.

### Which is updated more often, MPG Calculator or Barcelona Subway Map?

MPG Calculator ships an update every 2 weeks, and Barcelona Subway Map every 16 months. Most recently, MPG Calculator was updated on November 1, 2026 and Barcelona Subway Map on November 4, 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.*