# Safr - Know Your Chances — Ovulation & pregnancy risk

> Personalized fertility and pregnancy risk tracking based on user data and scientific research. (iPhone/iPad app by Grow Labs LLC.)

- Source: https://appshunter.io/ios/app/safr-know-your-chances/id6760857825 (this page in markdown: same URL + `.md`)
- Developer: [Grow Labs LLC](https://appshunter.io/developer/1857104579)
- Category: Health & Fitness
- Price: Free with in-app purchases
- Rating: 4.70/5 from 47 App Store ratings · 2 written reviews indexed
- Age rating: 17+
- Requires: iOS 16.0 · 59 MB
- Languages: American English
- Released: 2026-03-26
- Data updated: 2026-08-24
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/safr-know-your-chances/id6760857825/reviews.md

## What is Safr?

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.

## Key features

- Personalized fertility insights
- Pregnancy risk assessment
- Basal Body Temperature (BBT) tracking
- LH test strip logging
- Cervical mucus analysis
- Virtual pregnancy test

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Premium Access | $14.99 | per month |
| Yearly Premium Access | $59.99 | per year |
| Yearly Subscription | $59.99 | per year |
| Weekly Premium Access | $4.99 | per 7 days |
| Weekly Premium Access | $8.99 | per 7 days |
| Weekly Premium Access | $4.99 | per 7 days |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/safr-know-your-chances/id6760857825/reviews.md

### 5/5 — ⭐⭐⭐⭐ obsessed

*2026-04-19*

okay so i downloaded this kinda as a joke bc my friend sent it to me but like?? it’s actually SO useful. i’ve been using flo forever and it’s fine but it never really told me the stuff i actually wanted to know, like in normal girl terms. safr literally just tells you if you’re in a safe window or not. no weird clinical wall of text, no “consult your healthcare provider 🙂” popup every two seconds.
the pregnancy test thing is lowkey a lifesaver. i was NOT about to walk into CVS with my mom’s friend working the register. being able to do it through the app was so much less stressful, i almost cried ngl.
onboarding was cute, didn’t take forever, and the ui actually looks like someone under 40 made it. the only thing is i wish premium was a little cheaper bc i’m literally in high school 😭 but other than that no notes.
would recommend to literally every girl i know. sending to the group chat rn.

### 5/5 — so helpful!!

*2026-04-06*

safr really helps with knowing my safe vs not safe days for being unprotected, and i love the pregnancy test feature so i don't have to sneak around to get one

## Frequently asked questions about Safr

### How does Safr calculate fertility and pregnancy risk?

Safr uses a combination of your logged data, including Basal Body Temperature (BBT), LH test results, and cervical mucus analysis, along with established scientific research. It analyzes your unique biological patterns to provide daily fertility probabilities and pregnancy risk levels.

### What integrations does Safr offer?

Safr offers advanced integrations with Apple Watch for nightly wrist temperature data syncing via Apple Health. This allows for seamless and accurate BBT tracking to enhance fertility predictions.

### Can Safr be used to track intercourse for risk assessment?

Yes, Safr allows you to log multiple types of intercourse, including protected, unprotected, and withdrawal methods. This comprehensive logging helps ensure the accuracy of your pregnancy risk assessment.

### Does Safr provide a virtual pregnancy test?

Yes, Safr features a virtual pregnancy test that estimates your chances of being pregnant. It combines your cycle timing, BBT trends, and LH data to generate a structured, data-driven likelihood.

### What are the subscription options for Safr?

Safr offers various subscription plans, including weekly, monthly, and yearly access. Options include a 3-day free trial for weekly premium access, with prices ranging from $4.99 weekly to $59.99 annually.

### Is Safr suitable for all users?

Safr is designed for individuals tracking fertility and pregnancy risk. It is rated for ages 17+ and does not provide medical advice, recommending users consult a healthcare provider for medical guidance.

### How often is Safr updated?

The latest version of Safr is 1.4.5, and it was last updated on June 26, 2026. This indicates regular updates to improve functionality and accuracy.

### What is the user rating for Safr?

Safr has a strong user rating of 4.7 stars based on 36 ratings. This suggests a high level of user satisfaction with the app's features and performance.

## Version history (last 5 releases)

### 1.5.2 — 2026-08-18

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 support@besafr.app.
• 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.

### 1.5.0 — 2026-07-14

Safr 1.5.0 is our biggest update yet: a smarter start, and a big round of fixes.

NEW
- A redesigned welcome that reacts to your answers as you set up, with visual explainers of how each protection method compares and why your real cycle beats a fixed calendar
- Worried right now? A guided check-in reviews what you logged, step by step, with a calming breath built in. Your estimate is ready the moment setup ends
- Share what is on your mind during the check-in and Safr reflects it back, connected to what you logged
- Interactive temperature chart with clearer ovulation detection, shown in your device's preferred unit
- Clearer guidance on when a home test gives a reliable answer

FIXES
- Closing the subscription screen now works as expected
- Fixed a cold-start crash affecting devices on the latest iOS
- Reminders and insights no longer switch off for the most overdue cycles
- Fixed the date of birth picker jumping on first open
- Ovulation chart labels now line up with their gridlines
- Sharper artwork, smoother transitions, and better support for larger text sizes

### 1.4.5 — 2026-06-26

We have been busy making Safr more reliable, more private, and more helpful day to day.

• Sharper insights. We refined how Safr maps your fertile window and cycle, so your daily view better reflects what is going on with your body.
• A cleaner temperature view. Your basal body temperature now appears as a smooth monthly trend line that is much easier to read at a glance.
• Clearer privacy controls. Simpler consent options during setup and more transparency about the data Safr uses and why.
• Stability fixes. We fixed a crash that could happen right after you finished setting up your profile, along with other reliability improvements under the hood.

Thank you for trusting Safr with your cycle. Have feedback? Reach us anytime from Settings.

### 1.3.5 — 2026-06-18

We're always listening to your feedback and working to make Safr better, more accurate, and easier to use. Here's what's new:
- Critical bug fix that causes app to crash after logging

### 1.3.2 — 2026-06-16

We're always listening to your feedback and working to make Safr better, more accurate, and easier to use. Here's what's new:

• More accurate risk insights — we've improved how your pregnancy risk is calculated and explained, so your guidance is clearer and more personalized.
• Better Plan B timing — clearer, more accurate timing recommendations when it matters most.
• Easier-to-understand cycle logging — your logged days now come with simple explanations of what each entry means.
• Smoother sign-up & subscriptions — a more reliable account setup and subscription experience.
• Contact us in a tap — you can now reach our support team right from Settings.
• Better Oura Ring syncing — connecting and syncing your Oura Ring is now smoother and more reliable.

Thank you for helping us make Safr better.

## More apps by Grow Labs LLC

- [GoTall - Height Predictor](https://appshunter.io/ios/app/gotall-height-predictor/id6747467975)
- [BillionViews](https://appshunter.io/ios/app/billionviews/id6772617683)
- [ScanFile](https://appshunter.io/ios/app/scanfile/id6782189335)
- [Conceiva - Know Your Fertility](https://appshunter.io/ios/app/conceiva-know-your-fertility/id6783121869)

All apps by Grow Labs LLC: https://appshunter.io/developer/1857104579

## Related topics

[pregnancy prevention](https://appshunter.io/ios/topics/pregnancy-prevention) · [safr pregnancy prevention](https://appshunter.io/ios/topics/safr-pregnancy-prevention)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*