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 LiDAR
Upload clear front-facing photos for AI facial analysis, or use iPhone's LiDAR sensor for 3D facial mapping. Photos are never stored.
- Photo upload for all iPhones
- LiDAR 3D scanning (iPhone 12 Pro+)
- AI analyzes facial structure and proportions
- Zero photo retention policy
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
- Age progression (Premium mode)
Prediction Modes Explained
Four modes designed for different needs and budgets
Quick Mode
4 credits
Fun, instant results
Upload parent photos, get AI-generated baby images in ~30 seconds. Basic genetic trait detection from photos.
- 1 baby photo prediction
- Basic trait analysis
- Instant results (~30 seconds)
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
- Higher accuracy than Quick Mode
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
- Age progression (newborn to 10 years)
- 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
Parent photos only. AI detects traits from photos.
Parent traits manually entered. Mendelian genetics applied.
Parent + grandparent traits. Three-generation analysis reveals hidden recessive genes.
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: 15+ genes, height: 700+ variants), we use statistical models with weighted averages of parental values, adjusted for population ancestry.
Privacy & Data Security
Zero Photo Retention - Your photos are processed and immediately deleted
- Photos encrypted in transit (TLS 1.3)
- AI analyzes and extracts trait data
- Photos deleted immediately after analysis (~30-60 seconds)
- Only trait metadata retained for predictions
- GDPR, CCPA compliant with Row Level Security