Fansa Uchiwa - Fan Sign Maker is an art & design app by Kenshin Sasaki with 10,000+ downloads (about 10K estimated). +172 installs in the last 7 days. Install growth, rank history, SDKs and ad networks.
From the store listing: “This is a fan-service fan app that lets you create custom fan lettering for live shows and concerts using only your smartphone.
Simply choose a template and enter your favorite idol's name. Print it on A3 paper and stick it onto a fan from a 100-yen shop, and you'll have a life-sized fan!
■ Choose your fan template…”