Libby
Libby connects to your local library and lets you borrow ebooks and audiobooks for free. You read what you borrowed. No algorithmic recommendations, no engagement loops.
Why this score
The library model means you're reading books you chose. Borrowing limits create natural boundaries. No social features.
One of the cleanest reading experiences available because the business model doesn't depend on your engagement time.
The breakdown
- Attention Capture1.0
Mechanics designed to keep you in the app right now — infinite scroll, autoplay, variable rewards, and reactive swipe-tap loops.
- Habit Formation1.0
Mechanics designed to bring you back — streak coercion, default push notifications, and re-engagement of dormant users.
- Social Pressure1.0
How much the experience exploits social psychology — public metrics, profile curation, and status comparison against others.
- Time Theft1.0
Mechanics that steal more time than you intended to give — no stopping cues, short units, and 'just one more' loops.
- Cognitive Erosion1.0
Mechanics that replace your independent thinking, memory, or judgment — creating dependency on the tool to function.
- Cognitive Nourishment7.0
Whether the app actively strengthens your ability to think for yourself. Shown on the label, but it does not affect the score.