Available on iOS & Android

ParentSync Planner

Plan with dates, not promises

Explore family planning windows with an informational date estimate — based on both partners' birth cycles, right on your phone.


How it works

Enter birth details

Add birth month and year for both partners, then set the reference year for planning.

Generate windows

Tap Generate. The app scores each month based on both birth cycles and shows ranked windows.

Review & plan

See where popular prediction methods agree, share your result card, and save plans with Premium history.

Simple, honest pricing

One app. One price. No subscriptions.

Free

$0

  • 1 planning generation
  • 18-month projection
  • Boy & girl windows
  • ParentSync + Chinese lunar chart match
  • Shareable result card
Lifetime

Premium

$1.99

  • Mayan method + full method match
  • Unlimited generations
  • 60-month projection
  • Full range detail
  • Calculation history (50 plans)
  • One-time $1.99 — no subscription

Informational use only

ParentSync Planner provides recreational estimates based on a numeric model. It does not predict or guarantee pregnancy, fertility, or the sex of a baby. It is not a medical device and is not a substitute for professional medical advice. Always consult a qualified healthcare professional for family planning decisions.

Start planning today

Free to download. One-time premium upgrade. No account required.