@Murtza, thanks, indeed, TapEvent is an event app with Marketo integration.
We do offer a separate product, specifically for lead capturing on tradeshows. The native app can be used by a sales team to enter leads, and it can be offered in "kiosk" mode (self-service) to booth visitors. Lead data is synced to your Marketo lead database. The app is multi-lingual and supports multiple events. The app works offline and will sync when wifi is available (during or after the event). More info on Launchpoint:
https://launchpoint.marketo.com/tapcrowd/1870-lead-capturing-on-tradeshows/