Napper predicts nap and bedtime based on your baby's real sleep data, not generic tables. Free version is basically a timer. Paid unlocks the good stuff - adaptive schedule, 30+ white noise sounds, sleep articles, trend charts. $49.99/yr after a 7-day trial. If you just want wake windows without the full tracker overhead of [Huckleberry](/huckleberry), this is lighter and faster.

Napper does one thing and does it fast - tells you when the next nap should be. You enter when baby woke up, and it calculates the ideal window. Not from a generic chart. It learns from your baby's actual patterns over time.
Free version: a basic timer. That's about it. The real app lives behind the paywall - adaptive sleep schedules, trend charts showing average sleep duration and night wakings, and a library of 30+ sleep sounds (white noise, shushing, womb, lullabies). There's also a basic tracker for feeds and diapers, but sleep is the star.
$49.99/year after a 7-day free trial. Monthly and quarterly plans available too if you're not sure.
Compared to Huckleberry ($59/yr for Plus), Napper is more focused. No expert sleep plans, no lactation consultant upsell. Just wake windows and predictions. If you want sleep-only without the everything-tracker, Napper is cleaner. If you need the full baby dashboard with caregiver sync, look at Baby Connect or Glow Baby instead.
One thing parents notice: the predictions genuinely improve after a week of logging. First few days feel manual. Stick with it.