Incubator Rocket Internet is getting into the cleaning game with its latest clone of an existing business model. Helpling is launching today in four German cities and allows users to_book professional domestic cleaners for a flat rate of €12.90 ($17.80) per hour. In case you’ve not been following this space, the likes of_Homejoy_and_Handybook_(which acquired rival Exec_earlier this year)_have been offering ‘Uber for cleaners’ services for some time, while in the UK there’s Hassle and Mopp. So, Helpling is another clone from Europe’s ‘clone factory’, but you can hardly say Rocket is the first to copy the model. Book a time...

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