A good fertility app can help you identify your fertile window, log symptoms, and predict ovulation. But with dozens of options available, which one should you choose?
We've tested the most popular options and broken down the pros, cons, and best use cases for each.
Our Top Picks
✓ Pros
- Excellent OPK photo analysis
- Tracks T/C ratio progression
- Works with Easy@Home OPKs
- Clean, intuitive interface
- Most features free
✗ Cons
- Ads in free version
- Predictions can be off without data
- Less sophisticated charting than FF
✓ Pros
- Most comprehensive charting
- Excellent ovulation detection algorithm
- Active TTC community
- Export data to share with doctor
- VIP is affordable
✗ Cons
- Dated interface (not pretty)
- Steep learning curve
- Can feel overwhelming
✓ Pros
- Beautiful, modern interface
- Easy to use
- Helpful health content
- Anonymous mode available
- Secret chats for TTC community
✗ Cons
- Limited charting features
- Predictions based mainly on cycle length
- Premium feels expensive
✓ Pros
- Complete privacy (on-device)
- No account needed
- Apple Watch BBT tracking
- Clean, native iOS interface
- Free forever
✗ Cons
- Apple devices only
- Basic predictions
- No community features
- Limited analysis tools
✓ Pros
- Clean, gender-neutral design
- Science-focused approach
- Highly customizable tracking
- No ads in free version
✗ Cons
- Less TTC-focused than others
- No OPK or BBT features
- Predictions based on averages
Quick Comparison
| Feature | Premom | FF | Flo | Apple | Clue |
|---|---|---|---|---|---|
| OPK Photo Reader | ✓ | ✗ | ✗ | ✗ | ✗ |
| BBT Charting | ✓ | ✓✓ | ✓ | ✓ | ✗ |
| CM Tracking | ✓ | ✓✓ | ✓ | ✓ | ✓ |
| Free Core Features | ✓ | ✓ | ✓ | ✓ | ✓ |
| Modern Interface | ✓ | ✗ | ✓✓ | ✓ | ✓ |
| Community/Forums | ✓ | ✓✓ | ✓ | ✗ | ✗ |
| Data Privacy | ●●○ | ●●○ | ●●○ | ●●● | ●●● |
If you use OPK strips: Premom (photo reader is game-changing)
If you chart BBT seriously: Fertility Friend (most detailed analysis)
If you want simplicity: Flo or Apple Health
If privacy matters most: Apple Health (data stays on device)
If you're just starting: Flo or Premom
What About Hardware + App Combos?
Some fertility tracking devices come with their own apps:
Tempdrop + App: Wearable BBT sensor with its own app. Great for those who can't temp at the same time daily. App is basic—many export to Fertility Friend.
Mira + App: At-home hormone analyzer that tests LH, E3G, and PdG. Premium option (~$200 device + strips) with detailed hormone curves. Best for those wanting lab-like data at home.
Ava Bracelet + App: Wearable that tracks multiple physiological signs. Predicts fertile window in advance. More expensive (~$300) but convenient.
Oura Ring + Natural Cycles: Oura ring tracks BBT overnight; Natural Cycles app ($100/year) uses it for predictions. Sleek option if you're already interested in wearables.
Need Help Getting Started?
Our quiz can help you figure out where you are in your fertility journey.
Take the Fertility Quiz →The Bottom Line
The best fertility app is the one you'll actually use consistently. Key takeaways:
- Using OPKs? Get Premom for the photo reader—it's a game changer
- Charting BBT seriously? Fertility Friend is still the gold standard
- Want it simple? Flo or Apple Health are user-friendly
- Privacy-conscious? Apple Health keeps data on your device only
- Free is fine: All of these have excellent free tiers
Try a few and see what works for your tracking style. Most are free to start, so there's no risk in experimenting.