Fancy Rat Breeding & Pedigree
For fancy rat breeders. Auto-built pedigree trees, offspring color prediction, litter & placement tracking. One-time purchase, no subscription. Data stays on your device.
Pedigree and breeding records built specifically for fancy rats — with fancy rat color, marking, coat, ear, and tail lists, and offspring color prediction for each pairing.
No more retyping color names into a free-text box. No more keeping a paper pedigree form in one binder and a spreadsheet in another. RatteryLog is a purpose-built iOS app for fancy rat breeders and rattery keepers.
【What You Can Do】
▷ Rat Profiles
Register every rat with base color, marking, coat, ear, and tail chosen from fancy rat varieties (plus a custom field for anything not on the list) — alongside sex, birth date, body type, status, acquisition source, and photo. Free up to 25 rats total, counting rehomed pups (deleting a record frees a slot).
▷ Rainbow Bridge
Record the date a rat passed away, and switch the rat list between Current and Rainbow Bridge. Rats on the Rainbow Bridge no longer appear as parents for new pairings.
▷ Auto-Built Pedigree Tree
Link a sire and dam once, and the pedigree tree builds itself — up to 4 generations back. An ancestor you don't have full records for can still carry a name-only note, and a repeated common ancestor is flagged automatically.
▷ Color Prediction
Pick a sire and dam and see the likely offspring colors for that pairing, each marked Common, Possible, or Rare. It is based on a widely used color inheritance chart. It is a reference tool, not a guarantee of what any litter will look like.
▷ Pairings, Litters & Predicted vs. Actual
Log a pairing and get an automatic gestation due-date window. Record a litter's live and stillborn counts, then register pups in one batch form (name and sex; color and other fields can be added later on each rat). If you ran color prediction on the pairing, you can compare that forecast with the colors actually born.
▷ Placement Records
Track where every pup went — destination type, price, handover date, destination note, and a follow-up note — built around rehoming, not livestock sale.
▷ Pedigree & Litter PDF Export
Export a formal pedigree certificate or a litter report as a PDF, ready to print or hand to a new owner.
▷ Share Cards
Generate a new-litter card, a pedigree card, or a rattery-stats card in square, portrait, story, or landscape size, and send it from your device's share sheet. Free with a small watermark — Pro removes it and adds your rattery's own mark and accent color.
▷ Color Reference Chart
Browse every pairing of the 25 standard colors in a searchable in-app reference — no more digging through a printed chart.
▷ Achievements
8 milestones track your progress, from registering your first rat to spotting a common ancestor in a pedigree.
▷ ZIP Backup & Restore
Export every record as CSV plus your photos in one ZIP file — handy for a new iPhone — and restore from a backup without overwriting what's already there. Free for everyone.
【Who It's For】
· Breeders tired of re-typing free-text color names into a generic pedigree app
· Anyone still working from a printed pedigree form and a spreadsheet
· Breeders who want a chart-based answer to "what color will this pairing likely produce?"
· Rattery keepers who post litter announcements and pedigrees in the community
【Your Data Stays on Your Device】
Rat records and photos stay on this device. We do not upload them to our servers. No account required. No risk of losing your pedigree records if a service shuts down or changes hands.
【Pricing】
· Free: 25 rats total (including rehomed pups). Pedigree tree, color prediction, pairings, litters, placements, achievements, PDF export, share cards (with watermark), and ZIP backup are all included.
· RatteryLog Pro (one-time purchase): Unlimited rats, watermark-free share cards, and your rattery's own mark and accent color on cards. No subscription.