Book app with optional Google Drive backup
Booky's cloud backup is not a mandatory part of the app. It is an intentional add-on for users who want an off-device restore option. The feature uses the app's private area in Google Drive.
Private app area in Google Drive
For optional backup, Booky intentionally does not use a visible standard folder, but the app's private Drive area.
Flow
How the flow works
The cloud feature is intentionally reduced to a small, private flow so it stays understandable and predictable.
Use Google only for the backup feature
When the feature is enabled, the user selects a Google account and allows only the access Booky needs for its private Drive area.
Booky writes a private snapshot to its protected Drive area
This can contain library and wishlist data, relevant cover files, and backup details needed for restore and status display.
The known cloud state can be loaded from inside the app
Users can inspect the available cloud state and restore it without manually browsing Drive folders.
Guardrails
Important guardrails
The cloud feature is intentionally bounded so it stays understandable and never turns into a hidden requirement.
Cloud backup is optional and can be turned off in the app at any time.
In this sign-in step, Booky does not receive your account name or email address.
Snapshots are stored in the app's private area in Google Drive, not in a visible standard folder.
Local backups and exports remain available even without cloud backup.
Related topics
More context around local-first use and book organization
Cloud backup is only one part of Booky. These pages explain how the app works for Android library management, ISBN scanning, and local-first use.
No forced cloud Book app without mandatory cloud
The right entry point if local-first use, privacy, and optional rather than mandatory cloud features matter to you.
Open the local-first page Android app Android book organization appThe broadest overview if you want one Android app for your library, wishlist, ISBN capture, and reading progress.
Open the Android app page Scanner ISBN scanner for booksThe right page if you want to scan books by barcode and continue directly in an Android library app.
Open the ISBN page FAQ
Cloud FAQ
This section answers the most important cloud questions up front, so it is clear that cloud backup is optional and limited in scope.
What does Booky store in the cloud?
Depending on use, this can include library and wishlist data, relevant cover files, and backup details such as total entry count, separate library and wishlist counts, creation time, app version, and device name.
Does disabling the feature automatically delete my existing cloud data?
No. Disabling the feature stops future uploads. It does not automatically remove a snapshot that is already stored in your Google account.
Does Booky need additional Google data like my email address?
No. In this sign-in step, Google does not provide Booky with your account name or email address.
Can I use Booky meaningfully without cloud backup?
Yes. Booky works very well without cloud backup. Cloud backup is only an additional option for users who want a restore option beyond the device.