What does it mean when data stays on your device?
When records stay on the device, the portfolio is not centered around a remote account. That improves control, but it also creates real limits.
March 3, 2026
Local data means the portfolio lives on the phone first
In a local-first model, the main financial records are stored directly in the device's local storage. For the user, that means the portfolio can work without depending on a central account system for its core records.
It strengthens privacy, but it is not the same as zero data transfer
A local-first architecture is an important trust signal because the portfolio itself is not centered in a remote account. Even so, limited anonymous analytics flows may still exist. That is why 'nothing ever leaves the device' is too absolute to be accurate.
Local use and encrypted backup are different choices
With free local use, resetting a phone, changing devices, or removing the app can lead to data loss. When Kasa Plus is selected, transactions and tags may be encrypted on the device for backup. The recovery code must be stored safely to open a vault on a new device.