I am also having same problem in my project. it is working fine on android version 4.0.3 but not working on 4.1 and 4.2.2 I searched a lot on internet and find the problem is in new android platform not in pouchdb. If u really want to work on local storage just use the IndexedDB
See this link https://github.com/daleharvey/pouchdb/issues/504