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Infans

Android
Android
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Infans is a privacy-first baby tracking app with Nostr-based encrypted data storage and parent-to-parent sync.

Features:

  • Feeding tracking — bottle (ml/fl oz), breast (L/R/both + duration), solids
  • Sleep tracking — start time + duration
  • Weight & height — kg/lb/oz with optional height (cm/in)
  • Diaper tracking — wet/dirty/both
  • Bath tracking
  • Milestones — first smile, first word, etc.
  • Growth charts — WHO weight-for-age percentile bands (P3/P50/P97) for boys/girls
  • Activity trend charts — daily/weekly/monthly/yearly for all metrics
  • 7-day trend bar charts — feeding and sleep trends on the Summary tab
  • Encrypted backup — all data encrypted with NIP-44 and stored on Nostr relays as kind 30078 events
  • Parent sync — share data with co-parent via NIP-44 encrypted kind 30078 partner-sync events
  • Notes — leave async notes for the other parent (synced inside the same encrypted payload)
  • Offline-first — Room database is the local source of truth; Nostr syncs in the background

No telemetry, no analytics, no tracking. Your data stays yours — encrypted on Nostr relays you choose.