iOS privacy label · Book
CLZ Books - library organizer
CLZ
Privacy score
22.0/ 100
Grade C
Moderate declared collection.
The label at a glance
CLZ Books - library organizer declares 7 of Apple's 16 data types, for 4 purposes. 3 are used to track you across other companies' apps and websites.
- Used to track you 3
- Linked to you 4
- Not linked to you 0
- Not declared 9
Each type is counted once, under the most sensitive group it's declared in.
Against other Book apps
95%of Book apps declare less
#58of 1,112, most declared first
5.9category average score
39%of the category declares tracking
Score over time
No label changes since we started tracking it, first seen 08 Sep 2026.
In the full report
- All 7 data types, each with its group and purpose, down to Apple's finer detail (precise vs coarse location, device vs user ID)
- How it compares, type by type, with every other Book app
- Label changes, what was added or removed and when
- App Store listing data: privacy policy link, background location, in-app purchases, accessibility, release cadence
Book apps that declare less
-
Amazon Kindle: Reading AppAMZN Mobile LLC
14.5
B
-
Audible: Audiobooks & PodcastsAudible, Inc.
12.9
B
-
Libby, the library appOverDrive, Inc.
2.8
A
-
Hoopla: Your Library AnywhereMidwest Tape LLC
7.1
B
-
Goodreads: Book Tracker & MoreGoodreads, Inc
16.1
B
The most-rated apps in the category with a lower score.
Embed this score
<a href="https://privacybench.online/app/318799163"><img src="https://privacybench.online/badge/318799163.svg" alt="privacy score"></a>Scores come from the developer's own App Store privacy label, weighted by one published formula. A higher score means the app says it collects more.