Safr - Know Your Chances
Safr - Know Your Chances is #192 in Health & Fitness Free in South Africa and charting in 1 of 30 countries we track.
Updated 25 Oct 2026 · rankings refresh through the day
DeveloperGrow Labs LLC
CategoryHealth & Fitness
PriceFree
Released
Rating★ 0.0 (0)
Version1.5.2
Age rating17+
First seen by us
25 Oct 2026
25 Oct 2026Rating
0.0 ★
0 ratings
Measured
Best rank now
#192
Health & Fitness FreeMeasured
Safr - Know Your Chances on the App Store
App details
App ID
6760857825
Publisher
Grow Labs LLC
On the store since
Mar 2026
Under a year
Minimum OS
iOS 16.0+
iPhone 8 and later
Devices
iPhone · iPad
Content rating
17+
1 content note below
Languages
1
EN
Size
62 MB
Content notesFrequent/Intense Medical/Treatment Information
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| South Africa | Health & FitnessFree | #192 |
Apps near Safr - Know Your Chances on the chart
Health & Fitness Free, around #192.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About Safr - Know Your Chances
Most apps rely on averages. Your body doesn't. Safr uses the data you log to give you clear, personalized insight into your cycle, your fertile days, and your pregnancy risk.
How Safr Works:
1. Built on published research.
Safr draws on established reproductive health research and fertility awareness methods. Your cycle follows biological patterns, and Safr helps you see yours.
Safr brings your signals together in one place:
- Overnight Temperature (optional): import the wrist temperature you already track in Apple Health to see your cycle patterns more clearly.
- LH Test Strip Logging: log your luteinizing hormone (LH) results to understand your peak fertility window.
- Cervical Mucus Tracking: guided tools to track this key biological indicator across your cycle.
- Cycle History & Symptoms: Safr adapts to your unique patterns, not a fixed calendar.
2. Know your pregnancy risk every day.
Safr gives you daily fertility probabilities and clear risk levels so you always know where you stand. You can also log Plan B (emergency contraception) and multiple types of intercourse (protected, unprotected, or withdrawal) so your daily picture reflects what actually happened.
3. A smarter way to check pregnancy likelihood.
Safr's virtual pregnancy test estimator uses your cycle timing, temperature trends, and LH data to estimate your chances of being pregnant. It is an estimate based on your logged data, not a diagnosis and not a substitute for a home pregnancy test.
A subscription is required to unlock the full power of Safr, including:
- Apple Health temperature import
- Enhanced tracking: LH test strips, cervical mucus, and comprehensive intercourse logs
- Personalized fertility probabilities and cycle reports
- Virtual pregnancy test estimate & AI health assistant
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Disclaimer: Safr is for informational purposes only. It is not a medical device, does not provide medical advice, diagnosis, or treatment, and is not a contraceptive. Always seek a doctor's advice in addition to using Safr and before making any medical decisions.
How Safr Works:
1. Built on published research.
Safr draws on established reproductive health research and fertility awareness methods. Your cycle follows biological patterns, and Safr helps you see yours.
Safr brings your signals together in one place:
- Overnight Temperature (optional): import the wrist temperature you already track in Apple Health to see your cycle patterns more clearly.
- LH Test Strip Logging: log your luteinizing hormone (LH) results to understand your peak fertility window.
- Cervical Mucus Tracking: guided tools to track this key biological indicator across your cycle.
- Cycle History & Symptoms: Safr adapts to your unique patterns, not a fixed calendar.
2. Know your pregnancy risk every day.
Safr gives you daily fertility probabilities and clear risk levels so you always know where you stand. You can also log Plan B (emergency contraception) and multiple types of intercourse (protected, unprotected, or withdrawal) so your daily picture reflects what actually happened.
3. A smarter way to check pregnancy likelihood.
Safr's virtual pregnancy test estimator uses your cycle timing, temperature trends, and LH data to estimate your chances of being pregnant. It is an estimate based on your logged data, not a diagnosis and not a substitute for a home pregnancy test.
A subscription is required to unlock the full power of Safr, including:
- Apple Health temperature import
- Enhanced tracking: LH test strips, cervical mucus, and comprehensive intercourse logs
- Personalized fertility probabilities and cycle reports
- Virtual pregnancy test estimate & AI health assistant
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Disclaimer: Safr is for informational purposes only. It is not a medical device, does not provide medical advice, diagnosis, or treatment, and is not a contraceptive. Always seek a doctor's advice in addition to using Safr and before making any medical decisions.
Latest updates
1.5.2
We're always listening to your feedback and working to make Safr better, more accurate, and easier to use. Here's what's new:
• Your cycle as a chart: a new Chart view on the Calendar page brings your temperature and LH readings, cervical mucus notes, and your saved test strips together in one place.
• Easier LH strip reading: frame the strip right in the camera and Safr reads it consistently. If you correct a result, your correction sticks, and the camera stops asking for access you already gave.
• Sharper fertile window estimates: ovulation timing now draws on your measured temperature shift, your cervical mucus peak, and the onset of your LH surge together, so your window reflects the signals you actually logged.
• A more helpful Health Assistant: start a new conversation whenever you want, and swipe right or tap back to leave the chat.
• Reminders you can trust: reminders no longer linger after you turn them off, and scheduling is more reliable overall.
• An optional research study: if you sync basal body temperature from a wearable, you can now choose to join our consent-first BBT study. Entirely optional, and easy to leave.
• Reach us in a tap: support now goes straight to our team at [email protected].
• A smoother start: one continuous splash from open to app, plus hardened storage so a damaged file can never keep Safr from launching.
Thank you for helping us make Safr better.
