iOS · No DNA Kit Required · Free to Start

Your face already knows
where you came from.

fotosíntesis decodes your ancestry through documented phenotype science — no DNA kit, no lab, no waiting.

iOS 17+ · iPhone 12 or later · No subscription to start

Backed by Gray's Anatomy (1858) PubMed Human Phenotype Ontology NIH Bergmann's Rule Allen's Rule Gloger's Rule Thomson's Nasal Rule
The Science Is Already On Your Face

Four steps. Eight seconds of reveal.
A lifetime of context.

1
Scan

ARKit maps 38 facial landmark points in real time — zygomatic arch width, nasal index, orbital depth, lip structure. The green dots you'll see aren't decoration. They're science.

2
Photograph

Submit up to 6 guided body photos. Full body, face profile, shoulders, hands. Different angles reveal different phenotype signals — leg alignment, spinal curvature, shoulder-to-hip ratio, limb proportions.

3
Survey

40 questions. Widow's peak. Lip fullness. Bow-legged or straight. Fitzpatrick skin type. Every answer you give adds precision to your ancestry inference — raising your confidence score from 62% toward 95%.

4
Discover

Your ancestry mosaic animates into view. Region by region. Percentage by percentage. With the specific phenotypic traits cited for each ancestral origin. Maternal signals. Paternal signals. The visible record.

200 Years of Documented Science

This isn't AI guessing.
This is physical anthropology.

Physical anthropologists have been mapping the relationship between human phenotype traits and ancestral origins for over two centuries. Bergmann's Rule. Allen's Rule. Gloger's Rule. Thomson's Nasal Rule. These aren't theories — they're documented laws of human biology, validated across thousands of population studies.

fotosíntesis applies these laws computationally, at scale, in real time.

When our engine tells you your nasal index suggests ancestry from a humid equatorial climate, it's citing Thomson's published 1923 rule, which itself built on data from Gray's Anatomy skeletal chapters. When it reads your Fitzpatrick Type V skin as a Sub-Saharan signal, it's applying Gloger's Rule — documented in population genetics literature for over a century.

We cite the science. Every result. Every time.

"Every physical feature is an adaptation — a record of where your ancestors lived, what climate they survived, and what selective pressures shaped them over millennia."
Gray's Anatomy PubMed HPO / NIH Bergmann's Rule Allen's Rule Gloger's Rule Thomson's Nasal Rule 500+ Population Studies
Built for Truth

Not for engagement.

38 points of documented facial anatomy

Real-time TrueDepth camera mapping of orbital spacing, nasal aperture, lip structure, brow ridge prominence, and zygomatic arch width. Every landmark correlated to published anatomical variation databases.

Your face is only part of the story

Shoulder width. Leg alignment. Spinal curvature. Limb-to-torso ratios. Skin tone on unexposed skin. These body signals carry ancestry information your face alone can't reveal. fotosíntesis reads all of it.

The questions no other app is asking

Widow's peak. Bow-legged? Full lips or thin? Barrel chest or narrow frame? Attached earlobes or free? These are documented Mendelian and climate-adaptive traits with known population distributions.

Watch your accuracy build in real time

Start at 62% with a face photo alone. Answer a survey question — watch it move. Add a body photo — watch it climb. By the time you hit 40 questions and 6 photos, you're operating at 90%+ confidence.

Two lineages. One face.

Maternal mitochondrial traits and paternal Y-chromosome adjacent signals present differently in phenotype. fotosíntesis attempts to separate these signals — showing you what may have come from which side of your lineage.

Your face never lives in our cloud

Feature vectors, not pixels. Your photos are processed, analyzed, and permanently deleted within 90 seconds. No human reviewer. No stored imagery. No exceptions.

Who fotosíntesis Is For

Everyone who has ever looked in the mirror
and wondered.

Adoptees
140,000+ people age out of foster care every year with no documented ancestry.

fotosíntesis gives them a starting point — a phenotype map that connects physical traits to migration patterns and ancestral origins that no paper record could provide.

The Identity-Curious
You've seen the DNA results that raised more questions than they answered.

fotosíntesis shows you the visible science — the phenotypic evidence that's been written on your body your entire life. The layer your genome report can't show.

Heritage Enthusiasts
If you've already taken a DNA test, fotosíntesis gives you a second lens.

A different layer. The visible layer. Compare what your genome says to what your phenotype reveals. The convergences are fascinating. The divergences are even more so.

The Culturally Disconnected
Diaspora communities. Mixed-heritage families. People who've always looked different.

fotosíntesis is a tool for reconnection — grounded in science, not in family mythology. For people who've always needed a different kind of answer.

You Are Not Alone in This

Your ancestry connects you
to living people, right now.

fotosíntesis isn't just an analysis tool. Create your free account and your results open into a living community — people exploring the same questions, uncovering the same connections, finding each other across time.

01
Build your ancestry profile.

Save your results. Track your confidence score as you add more data. Your profile is your living ancestry record — private by default, shared entirely on your terms.

Free
02
Join the cultural groups that match your heritage.

Discover 49 active communities — from West African Coastal Peoples to the Iberian Peninsula to Han Chinese lineages. Read their histories. Share your results. Find where you belong on the map of humanity.

Heritage
03
Follow others on the same journey.

Connect with people uncovering similar ancestry stories. Share discoveries. React to what you find. A social feed that's actually relevant to your heritage — not an algorithm's guess at what you want to see.

Heritage
04
Find the people you may actually be related to.

Heritage+ compares your complete phenotype signature against every consenting user on the platform — across facial structure, body proportions, and survey traits. The people who surface are statistically matched, not randomly suggested.

Heritage+
Start Free. Go Deeper When You're Ready.

No credit card. No pressure.
No expiration date on free.

Free
$0

The full discovery experience — no strings attached, no expiration.

  • Full facial phenotype scan (38 landmarks)
  • 40-question phenotype survey
  • Body photo analysis (6 angles)
  • Ancestry mosaic + real-time confidence score
  • Personal ancestry profile
  • Cultural group membership
  • Social feed + community
  • Relative matching
Download Free
Heritage+
$19.99/mo

Every layer of ancestry — including the people who carry the same story.

  • Everything in Heritage
  • Phenotype relative matching — find your people
  • Unlimited cultural group membership
  • Advanced phenotype insights + trait breakdown
  • Maternal + paternal signal separation
  • Priority analysis + early feature access
Get Heritage+

Heritage annual plan — $59.99/yr, save 50% · Cancel anytime · Your face never lives in our cloud

Free · iOS · No Subscription Required

Your face already knows.
Now you will too.

No DNA kit. No lab. No $100 fee. No 14-day wait.
Just your face, 200 years of physical anthropology, and the truth.

Download on the App Store

iOS 17 or later · iPhone 12 or later · Face ID capable device required

A note on what fotosíntesis is — and what it isn't.

fotosíntesis produces phenotype-based ancestry inference: statistical probabilities derived from documented correlations between physical traits and ancestral population origins. Results are educational and exploratory in nature.

fotosíntesis is not a genetic ancestry test. Results should not be used for medical, legal, immigration, or identity documentation purposes. For certified genetic ancestry analysis, consult a licensed genomics laboratory.

What fotosíntesis offers is something the genetic test cannot: the visible story. The phenotypic record. The science of what can be seen.