Every horse carries its whole family.
Bloodline is an Android app that reads a thoroughbred's pedigree the way a breeder does: which ancestors repeat, how inbred the horse is, and what a mating would produce. Then it lets you breed and race those real bloodlines in a game.
The questions a breeder asks, answered on the phone.
- How inbred is this horse?Wright's inbreeding coefficient over eight generations, with how much of the pedigree is actually known, so a low number from a thin pedigree is never mistaken for an outcross.
- Which ancestors repeat?Every ancestor on both the sire and dam side, in the notation breeders use (3×4, 4×5×5), with its share of the total.
- What would this mating produce?Pair any stallion with any mare and see the foal's pedigree and inbreeding before the cover. Galileo × Kind returns Frankel's numbers exactly.
- Where does this name come from?Tap any ancestor in the tree to open its own pedigree and keep walking back.
Breed and race horses whose ancestry is real.
Racing games on phones run on invented horses. Bloodline's game draws its foals from the same real pedigrees the analysis uses, so a player's breeding choices follow the bloodlines that made the breed. The game is in development.
Real ancestry
Every horse descends from real thoroughbred bloodlines and carries the same inbreeding and cross analysis as the pedigree tool.
Free to play
Play with in-game money, or pay for more. In-game money is never sold, has no cash value and cannot be cashed out. There are no real-money prizes.
One app
The breeder's analysis and the fan's game share one pedigree engine and one install.
Pedigree tools are costly and tied to a desk. Racing games ignore real horses.
Breeding analysis today
- Mating reports cost $199 to $795 each; stallion subscriptions run up to $1,750 a year (TrueNicks published pricing).
- Produce records on a phone cost $424.99 a year (Equineline, iOS).
- Phone apps offer matings only for stallions whose farms pay to be listed. We found no Android app that pairs any thoroughbred stallion with any mare and shows the inbreeding and repeated ancestors.
Racing games today
- Real racehorses sell: Umamusume, whose characters are each based on a real racehorse, passed $2 billion in player spending (Sensor Tower).
- The leading Western mobile racing games breed invented horses.
- Outside Japan, games built on real thoroughbred pedigrees are on PC and console. No English-language mobile game breeds real Western bloodlines.
- Worldwide market, per year
- $275M–$579M
Pedigree and breeding information (about $25M) plus horse-racing games ($250M–$554M, mostly Japan's Umamusume, depending on current versus lifetime-average revenue). About $34M without Umamusume.
- Reachable on Android in English, per year
- $7.2M
About 2.45 million people: 24,800 breeders, owners and agents; 2.2 million US horseplayers; 208,000 horse-game players.
- US adults who bet on horse racing
- 5.3M
Gallup, 2026. North America bred 27,180 mares in 2024, each one a mating decision. Keeneland's 2026 September yearling sale took in $536.7 million, topping 2025's record $531.5 million.
Pricing
Planned. Pro costs less a year than a single $199 mating report.
Free
- Horse lookup and five-generation tree
- Inbreeding to five generations
- Three hypothetical crosses a day
- The game, with in-game money
Plus
- Unlimited hypothetical crosses
- Inbreeding to eight generations, every repeated ancestor
- A bigger stable and more breeding slots in the game
- No ads
Pro
- Everything in Plus
- The best stallions for a given mare
- Saved mares and exportable mating reports
- Sale-catalogue hip lookup
Where it stands
Working today
- Bloodline 1.0.1 for Android, running on device
- A pedigree graph of 82,701 thoroughbreds, and growing
- Inbreeding, repeated-ancestor and hypothetical-cross analysis
- Five-generation pedigree tree with tap-through navigation
In progress
- Offline mode, with the pedigree graph on the phone
- The real-bloodline racing game
- Release on Google Play
Which horse would you look up first?
Breeders, buyers and fans: tell us and we will run it.