PhaseBloom vs Natural Cycles: Planner vs Birth Control App

Natural Cycles is an FDA-cleared app for fertility awareness and birth control that uses your basal body temperature to identify fertile and non-fertile days. PhaseBloom is a cycle syncing planner focused on how you eat, move, and care for yourself across your cycle.

These apps solve very different problems. Natural Cycles is about contraception and conception; PhaseBloom is about daily lifestyle planning around your phase.

The short answer

Choose Natural Cycles if you want an FDA-cleared fertility and birth control app based on basal body temperature. Choose PhaseBloom if you want a cycle syncing planner for daily meals, workouts, skincare, and journaling. PhaseBloom is not a contraceptive and does not replace Natural Cycles for that purpose.

PhaseBloom vs Natural Cycles at a glance

FeaturePhaseBloomNatural Cycles
Primary purposeCycle syncing planner for daily routinesFDA-cleared fertility and birth control
Contraception / conceptionNot a contraceptive; not for birth controlCore purpose, based on basal body temperature
Daily food guidancePhase-specific meals and grocery listsNot a focus
Workout guidanceTraining matched to each phaseNot a focus
Skincare routinesPhase-based AM and PM routinesNot a focus
Tracking requiredWorks from a simple phase estimateDaily temperature measurement

Choose PhaseBloom if

  • You want daily lifestyle guidance, not contraception
  • You want meals, workouts, and skincare tuned to your phase
  • You prefer not to measure your temperature every morning

Choose Natural Cycles if

  • You want an FDA-cleared birth control or fertility app
  • You are comfortable measuring basal body temperature daily
  • Contraception or conception is your primary goal

Sync your whole cycle, automatically

PhaseBloom builds your meals, workouts, and skincare around your exact cycle phase, day by day.

Build my plan

Frequently asked questions

Can PhaseBloom be used for birth control?

No. PhaseBloom is a lifestyle planner, not a contraceptive. If you want a fertility awareness birth control method, Natural Cycles is FDA-cleared for that purpose.

Does PhaseBloom track fertility?

PhaseBloom focuses on lifestyle planning by phase rather than fertility prediction for conception or contraception.

Can I use both together?

Yes. You can rely on Natural Cycles for fertility awareness and use PhaseBloom to plan your food, workouts, and skincare around your phase.

Does PhaseBloom require daily measurements?

No. PhaseBloom is designed to work from a simple phase estimate, without daily temperature readings.

PhaseBloom is an educational cycle syncing planner, not medical advice or a contraceptive. Other apps are named factually for comparison; all trademarks belong to their respective owners.