Command Palette
Search for a command to run...
DuoBook
Switch between reading and listening to the same story — Duobook is an eReader and audiobook player that lets you switch between reading and listening without losing your place in the story
last checked Jul 14, 2026 · Unknown
CohortClass of 2016What it is
Switch between reading and listening to the same story — Duobook is an eReader and audiobook player that lets you switch between reading and listening without losing your place in the story. [iOS, Tech]
HTTP liveness
11 probes since Jun 16Jun 16Jul 14
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026First probe — unverifiedUnknown
Discussion 0 comments
No comments yet. Be the first!
Pulse Indexobserved activity
11 probes0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2016weekly
13,657 products launched in 2016 · 100% still active
13,633 active24 sunset
Still active
100%
Median lifespan
4.9y