Is there a MARTA app to download in the Apple app or Google Play Store?

No. The MARTA app is just a website that runs in a browser like Chrome or Safari. We designed it to achieve native app-like behaviour and performance. This approach makes us less dependent on Apple and Google store conditions, and our small team can deliver new features quickly. You don't need to keep updating to the latest app store version. Everyone can search for and buy your products online without downloading an app.