How ProbaBaby Works
ProbaBaby is the only baby prediction app built on real Mendelian genetics. While other apps simply blend faces, we combine scientific genetic calculations with AI technology to deliver predictions you can trust and understand.
The 4-Step Prediction Process
Add Family Traits
Enter eye color, hair color, hair type, skin tone, height, and blood type for both parents. Optionally add all four grandparents for up to 95% confidence.
- 6 trait categories per person
- Grandparent data reveals hidden recessive genes
- Up to 95% confidence with complete family data
- Detects traits that skip generations
Upload Photos or Use TrueDepth Face Scan
Upload clear front-facing photos for AI facial analysis, or use iPhone's TrueDepth camera (the Face ID sensor) for 3D facial mapping. Photos auto-delete after your prediction (48-hour default).
- Photo upload for all iPhones
- TrueDepth 3D face scan (iPhone X and later)
- AI analyzes facial structure and proportions
- Photos auto-delete (48-hour default)
AI + Genetics Analysis
Our Mendelian genetics engine calculates trait probabilities using Punnett squares, then guides Google Gemini AI to generate realistic baby images constrained by genetic science.
- Punnett square calculations for each trait
- Polygenic models for skin tone and height
- Recessive gene detection with grandparent data
- AI constrained by genetic probabilities
Get Results
Receive high-resolution baby photos, trait-by-trait probability breakdowns, Punnett square visualizations, and educational genetic reports.
- Multiple baby photo variations
- Genetic report with probability percentages
- Punnett square visualizations
Prediction Modes Explained
Three modes designed for different needs and budgets
Standard Mode
8 credits
Detailed genetic predictions
Input parent traits manually, receive Mendelian genetics calculations with Punnett square breakdowns.
- 3-5 baby photo variations
- Punnett square visualizations
- Trait-by-trait probability breakdown
- Balanced speed and accuracy
Premium Mode
12 credits
Maximum genetic accuracy
Add all four grandparents' traits for three-generation analysis. Unlock recessive gene detection and up to 95% confidence.
- 5-7 baby photo variations
- Three-generation genetic analysis
- Detailed PDF genetic report
- Video animation
- Up to 95% confidence score
Scientific Mode
4 credits
Pure genetics analysis (no photos)
Perfect for understanding genetic inheritance without image generation. Ideal for educational purposes.
- Statistical genetic calculations
- Comprehensive PDF genetic report
- Punnett square breakdowns
- No photos required or generated
Understanding Confidence Scores
Parents-only predictions start here. There are no fixed per-mode ranges — confidence is computed per prediction and rises as you add family data.
Adding all four grandparents and childhood details raises confidence toward our hard 95% cap.
Genetics involves probability, not certainty. Even with perfect data, some traits are influenced by 100+ genes, environmental factors affect expression, and rare mutations can occur.
The Science Behind the Scenes
Two-Gene Eye Color Model (OCA2/HERC2)
ProbaBaby uses the scientifically-accepted two-gene model. OCA2 controls melanin production, HERC2 regulates OCA2 expression. Our algorithm accounts for intermediate phenotypes beyond the basic brown/blue binary.
Polygenic Traits
For traits controlled by many genes (skin tone: 9+ genes, height: 700+ variants), we use statistical models with weighted averages of parental values, adjusted for population ancestry.
Privacy & Data Security
Auto-Deleting Photos - Your photos are processed for your prediction, then automatically removed
- Photos encrypted in transit (HTTPS/TLS)
- AI analyzes and extracts trait data
- Photos auto-delete after your prediction — 48-hour default, adjustable from 24 hours to 30 days
- Only trait metadata retained for predictions
- GDPR, CCPA compliant with Row Level Security
Frequently Asked Questions
ProbaBaby uses scientifically-accepted genetic models (Mendelian inheritance, Punnett squares, two-gene eye color model) to calculate trait probabilities. However, it is an entertainment and educational tool - not a medical diagnostic device.
All modes work from trait information for at least both parents — no photos required. Scientific Mode is fully photo-free by design.
Use Standard Mode instead of Premium Mode. It still provides accurate Mendelian genetics calculations - you just won't get recessive gene detection.
No. ProbaBaby only analyzes visible physical traits (eye color, hair color, etc.). For genetic health screening, consult a medical geneticist.
Standard Mode: ~1-2 minutes. Premium Mode: ~2-3 minutes. Scientific Mode: ~30 seconds.
Yes, for predictions (server-side AI processing). All other features work offline.
Get Started Today
Download ProbaBaby for free — explore 30+ free genetics tools right away, and choose from three prediction modes whenever you're ready.
