Simple and amazing.
Whistle was the easiest sight to sell my phone on! It was quick, easy and everything was provided! It was amazing. I will 100% use it again!
By Amber S.
Saturday, November 7, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
213 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Backflip is listed under Appliances & Electronics.
Backflip (backflip.com) has 213 customer reviews on The Fair Hearing, with an average rating of 4.8 out of 5.
Showing 198 reviews with 5 stars · Clear filters
Whistle was the easiest sight to sell my phone on! It was quick, easy and everything was provided! It was amazing. I will 100% use it again!
By Amber S.
Highly recommended great communication your informed every step of the way for the entire transaction very nice people and trustworthy to work with
By Dennis W.
amazing customer service, receptive and always gives you your money’s worth even for damaged devices.
By Samantha G.
The entire process was very simple and quick. I needed to contact customer to update my payment information and they replied to my email very quick and resolved my issue.
By Shan
Very fast process and got my money within 24 hours! Definitely would use again. :)
By Yijia
Simple & Easy Everyone should download this App..
By Chrisandra
They were quick and fast to hip the box and 3 days after sending it back I received my money via cashapp
By Robert R.
Whistle Is Amazing They Offer Me A New Deal Since My Phone Had Scratches On It But The New Deal Was Just As Good As The First Deal I Had Gotten They Are Amazing
By Emily O.