Privacy Policy for Yoly
Effective date: 20 October 2026
App name: Yoly Bundle identifier: com.kirsulab.leaf Platform: iOS and iPadOS Publisher: KirsuLab LLC Contact: hello@kirsulab.com
Yoly is a reader for FB2, EPUB, TXT and PDF books. It is built to do its job without collecting anything about you. This policy explains, plainly, what that means.
1. The short version
Yoly collects no personal data at all. There are no accounts, no analytics, no advertising, no tracking, and no crash reporting inside the app. Nothing you read, highlight or write in Yoly is sent to KirsuLab or to any third party.
2. Your books and notes
- Books you open in Yoly, along with your reading position, bookmarks, highlights, notes, shelves, collections and reading statistics, are stored on your device.
- If iCloud is turned on for Yoly, your reading position and settings are kept in your own iCloud account, and you can choose to keep your books there too (the "Books in iCloud" switch). This storage belongs to your Apple Account and is handled by Apple under Apple's Privacy Policy. KirsuLab cannot see it.
- The home screen widget reads the book you are reading from the app's own storage on the same device.
- Fonts you add to Yoly stay on your device.
3. Reading aloud
Read aloud uses the voices built into iOS. The text is spoken on your device, and Yoly does not record or save the audio.
4. Free book catalogs
Yoly can browse two public catalogs of free books: Project Gutenberg and Standard Ebooks. When you open a catalog, search it or download a book, Yoly connects directly to that website, which sees the request like any web visit (for example your IP address and the search words). These sites have their own privacy policies.
If you are a member of the Standard Ebooks Patrons Circle and sign in, your email address is kept in the iOS Keychain on your device and is sent only to standardebooks.org. Signing out removes it.
5. Information we do not collect
- We do not ask for your name, email address, or any account with KirsuLab.
- We do not collect analytics or usage statistics.
- We do not use advertising or any advertising identifiers.
- We do not access, transmit, or store the contents of your books or notes.
- Yoly contains no third-party tracking or advertising SDKs.
- Yoly does not request access to your camera, microphone, contacts, photos or location.
6. Network connections
Yoly does not connect to KirsuLab servers, and has no servers to connect to. The only network activity is the catalogs described in Section 4 and iCloud, if you use it.
7. Data retention and deletion
Because Yoly collects no personal data, there is nothing for us to retain or delete on your behalf. Deleting a book in Yoly removes it from the app. Deleting the app removes everything it stored on the device. Data in your iCloud can be managed in Settings → [your name] → iCloud.
8. Children
Yoly is a general-purpose reader and is not directed at children. It collects no personal information from anyone, including children.
9. Changes to this policy
If the app changes in a way that affects this policy, we will update this page with a new effective date.
10. Contact
KirsuLab LLC Email: hello@kirsulab.com