I actually have a hard time thinking of clones in this space (not counting general freelance sites like odesk and fiverr)...who was TaskRabbit's biggest competitor (not counting Zaarly, which also pivoted)
Those 3 wouldn't even be considered competitors. All have an Alexa higher than 1 million, so they are barely known. Depending on how long they've been around, one might say they've failed.
Firstly, Alexa data isn't fresh, I'm pretty sure it's up to 3 months old...3 months ago we weren't live.
The UK isn't as receptive to task marketplaces as the US, hence why nobody is really killing it over here, but times are changing and traction is starting to come through.
We started out as a clone to the original Zaarly, but realised that the data was screaming at us to do something different.
Sorted is now a profile driven marketplace, our Sorters (task do-ers) create profiles and Customers simply search what they want, so a cleaner near postcode x. They browse profiles and request the Sorter, payments still run through the platform.
It opens up a lot more marketing opportunities by leveraging the Sorter base, and the model is being pretty well received in the UK.
We launched and MVP about 2 months ago learnt from the data, iterated and launched another version about 2 weeks ago, we've gone from 800 users on the Zaarly model to 15,000 on the search model, and we're optimising the funnel as we speak.
I assure you, we have not failed, we're a very young business and it's a steep learning curve, but the UK is a tough nut to crack.