Seller Book (Seller Book) is a sales management application for those who sell using the Flea App.
You can comfortably manage daily sales management. Let's get a tool for free sales management without stress!

Everyone selling in Mercari, Frill, Rakuma, Yahoo auction, etc. How are you now managed to manage sales?
A note in a note? Calculated in Excel? ... No it's a little troublesome⁈ ('Д`)

With this "Seller Book" which was developed jointly with an active user of the flea app, sales of multiple applications are managed with a single smartphone.
Since you can also enter purchase price, packing materials cost, shipping fee, commission etc., you can understand the net profit per month at a glance.

Moreover, I think that you can use it conveniently for those who are using the flea market held in various places.

Until now sales management software on PC was not very easy to use because the monthly fee is high. We offer it free for this Android application!


[Characteristic]
· No more PCs, you can manage sales anytime and anywhere.
· "Monthly" "Sales" "Cost" "Net Income" will be displayed at a glance graph.
· Optimized input according to smartphone's UI so you can easily enter it.
· You can manage the status before selling · listing · shipping preparation · waiting for evaluation · transaction completion.
· We cooperatively developed with the cellar of the active flea market application, so I focused on the minimum necessary functions.
· Because there is data retrieval and reading function, data migration is possible even if terminal is replaced.
· There is no annoying initial registration, please use it immediately to improve the sales of Flea after purchase.

[Customer support]
If trouble occurs while using the application, please contact sellerbook.customer@gmail.com though sorry for any inconvenience.
·Bug content
· What kind of operation did the problem occur?
· Application version number (eg 1.0.0)
· Model name (Xperia etc.)
· OS type (Android 7 etc.)
I think that correspondence will go smoothly.
We are also waiting for opinions and impressions to make the application better.