Give Your Book
A Digital Soul
A Mark Tag adds a history to a physical book. Readers log their favorite quote, thoughts, rating, and more — permanently attached to that individual copy, connecting all past and future readers.
Tag Your First Book
1. Tag
Stick a tag inside a book
2. Scan
Readers scan the QR code
3. Log
Leave an entry for future readers
4. Track
Get notified when the book moves on
Most Popular
Go Explorer
$4.99/mo
7-day free trial
- Unlock every book's full history
- 10 Mark Tags every 3 months
Cancel anytime
Starter Pack
10 Mark Tags
Start 10 book journeys. Each tag connects every reader of that copy — forever.
- ✓ 10 Mark Tags
- ✓ 5 Book Unlocks
- ✓ Durable & Waterproof
