Genetics-first predictions
Meet your baby before they're born
Real Mendelian genetics meets AI visualization. The only mobile app we know of that calculates inheritance before generating images.
- Free to download
- No subscription
- Family Sharing
OCA2 / HERC2 · one gene
- Brown50%
- Hazel-green25%
- Green25%
Real Punnett math — probabilities, not promises
How It Works
Input Genetic Data
Enter eye color, hair color, skin tone, and other traits for both parents. For maximum accuracy, add grandparent traits to account for recessive genes.
Genetic Calculation
Our Mendelian genetics engine calculates probabilities using Punnett squares, polygenic inheritance models, and multi-gene interactions.
AI Visualization
The AI generates realistic baby images guided by genetic probabilities - not random blending, but science-informed visualization.
Input Genetic Data
Enter eye color, hair color, skin tone, and other traits for both parents. For maximum accuracy, add grandparent traits to account for recessive genes.
Genetic Calculation
Our Mendelian genetics engine calculates probabilities using Punnett squares, polygenic inheritance models, and multi-gene interactions.
AI Visualization
The AI generates realistic baby images guided by genetic probabilities - not random blending, but science-informed visualization.
Confidence, quantified
The more family you add, the surer we get
Most apps guess. We show our work — and tell you exactly how confident the math is. Add grandparents and hidden recessive genes stop hiding.
Confidence
95%
Confidence reflects the genetic model, not a promise. Predictions are probabilities.
Everything You Need
From genetic predictions to postpartum recovery - one app for the entire journey.
Why ProbaBaby is Different: Genetics First
Real Genetics, Not Just AI
Built on Mendelian inheritance principles · Three-generation genetic analysis
Privacy Protected
Encrypted in transit & at rest · GDPR & CCPA compliant · No data selling
Free, no account
Try a tool right now — nothing to install
Real calculators that run in your browser. No sign-up, no email, no credits. The app goes further, but these are yours for free.
- Open toolDue Date CalculatorEstimate your delivery date from your last period, conception date, or IVF transfer.
- Open toolHospital Bag ChecklistPack everything you, your partner, and your baby need — customized for your delivery.
- Open toolContraction TimerTap when each contraction starts and stops. Watch for the 5-1-1 rule and know when it's time to head in.
- Open toolBMI Calculator — Pre-Pregnancy BMI & Healthy RangeFind your BMI and healthy weight range — the number that sets your pregnancy weight-gain targets.
- Open toolPregnancy Weight Gain CalculatorSee your IOM-recommended weight gain range by pre-pregnancy BMI, week by week — for singleton and twin pregnancies.
- Open toolPregnancy Caffeine Calculator (200 mg Limit)Tap your drinks to total today's caffeine and compare it to the 200 mg daily limit recommended in pregnancy.
- Open toolPregnancy Water Intake CalculatorYour daily hydration goal from weight, trimester, and activity — the same engine as the ProbaBaby iOS app.
- Open toolBaby Zodiac Sign PredictorEnter your due date or conception date to reveal your baby's zodiac sign, element, and key traits — just for fun.
- Open toolMayan Gender PredictorAn ancient parity method: your age and the conception month decide boy or girl — instantly, and just for fun.
- Open toolChinese Gender PredictorA boy-or-girl guess from the legendary chart — based on mom's age and conception month, just for fun.
ProbaBaby by the numbers
Trusted by Families Worldwide
Comprehensive healthcare data across 241 countries & territories
Learn More- Countries & Territories
- 241
- Fully Localized Languages
- 32
- UN Member States Covered
- 193/193
- Healthcare Files
- 967
Global Healthcare Coverage
Global Healthcare Data
1,700+ resource files powering healthcare information for 241 countries & territories
- Vaccination Schedules241schedule files
- Hospital Stay Data241country & territory profiles
- Support Resources241resource files
- Early Birth Resources241countries & territories
Available in 32 Languages
ProbaBaby supports parents around the world with full localization and RTL support.
Full right-to-left (RTL) support for Arabic and Hebrew
Privacy
You're sharing family photos. Here's our end of the deal.
Photos are analyzed, then deleted — typically within 30–60 seconds. We keep the trait data, never the faces, and we sell nothing to anyone.
Read the privacy details- Photos kept long-term
- 0
- Third-party trackers
- 0
- Photo auto-delete
- 48h
- Encryption in transit
- HTTPS/TLS
Pricing
Three ways to predict. Pay only for what you run.
Everything else in the app is free. Credits are a one-time purchase — no subscription, and they never expire.
- Standard Mode8creditsper predictionFull Mendelian analysis
- Premium Mode12creditsper predictionThree-generation genetics
- Scientific Mode4creditsper predictionPure genetics report
No subscriptions. No commitments. No surprises.Credit packs are priced in your local currency on the App Store.
See credit packsWhat Parents Are Saying
Illustrative examples of parent feedback from around the globe
The genetics predictions were spot-on! Our baby has my blue eyes and my husband's dark hair, exactly as predicted with 92% confidence.
Finally, an app with vaccination schedules for my country! I'm in South Korea and no other app had our specific schedule. ProbaBaby has it all.
The hospital bag checklist knew exactly what I needed for our 2-day stay in California. No overpacking, no forgetting essentials. Perfect!
Best baby tracking app. Simple mode is a lifesaver at 3 AM when you're exhausted. Just tap a button and it logs everything.
As a geneticist, I'm impressed by the accuracy of the Punnett square calculations. This app actually understands Mendelian inheritance!
241 countries! I live in a small Caribbean island and every other app forgot about us. ProbaBaby has our emergency numbers, hospital data, everything.
The contraction timer with Live Activities is genius. I could track contractions from my Lock Screen without unlocking my phone during labor.
Questions
The things people ask before downloading
Straight answers. The rest are on the FAQ page.
Read all FAQsProbaBaby is a genetics-powered baby prediction app that uses Mendelian inheritance models and AI to visualize what your future baby might look like based on real genetic science.
Unlike apps that simply blend parent photos, ProbaBaby calculates genetic probabilities using real scientific models - including Punnett squares, dominant/recessive genes, and polygenic inheritance - before generating AI visualizations.
Credits are the currency used for AI-powered predictions. Different prediction modes require different amounts of credits: Standard Mode (8), Premium Mode (12), and Scientific Mode (4).
Yes — every new account gets 5 starter credits, enough for one free Scientific prediction (4 credits). After that, buy a credit pack whenever you want more; credits never expire.
Grandparent data helps us detect hidden recessive genes. For example, a brown-eyed parent might carry a recessive blue eye gene from their parent, which could appear in their child.
Your photos are encrypted, transmitted securely to Google Gemini Vision (Google LLC) for facial feature analysis, and automatically deleted after your prediction completes — within 48 hours by default (adjustable from 24 hours to 30 days). We never store photos long-term and never use them for advertising or AI model training.
Join Parents Worldwide
Free to download with 30+ free tools and no subscriptions. To our knowledge the only mobile app with real Mendelian genetics, 241 countries healthcare coverage, and 32 fully localized languages.
- Real Mendelian genetics (not just face blending)
- 241 countries & territories healthcare coverage
- 32 fully localized languages
- 6,200+ learning cards
- a full postpartum module (Baby Tracker + Mom Recovery)
- 30+ free tools (no credits required)
- Prediction photos auto-delete (privacy-first)
- Offline-first architecture