
BookGap
Chrome extension
Available
Turns an Amazon book’s low-star reviews into the brief for a better book.
bookgap.appChrome Web StorePrivacy policyTerms of useAll details
Software studio · Muğla, Türkiye
Yonga Works is a one-person software studio making BookGap for Chrome, and Yonga Streak, Stock, Orders and Spray for Android. Their policies live on this site, and one email address covers support for all of them.




Chrome extension
Available
Turns an Amazon book’s low-star reviews into the brief for a better book.
bookgap.appChrome Web StorePrivacy policyTerms of useAll details

Android app
In development
A habit tracker you fill in by describing your day in plain words.

Android app
In development
A stock ledger you keep by saying what sold or what arrived.

Android app
In development
An order book for makers who take their orders by message.

Android app
In development
Spray records for small growers: say what you sprayed, and the record is done.
Questions, bug reports and privacy requests for every product go to one address. Replies usually come within two working days.