For the pet who knows your name
Your pet deserves to be known. Cinna helps you do that, gently.
There is one animal in your house who waits at the door, who knows the sound of your shoes on the stairs, who curls up at your feet when the day is hard. We built Cinna for them. Not for the idea of pets. For the specific one who is yours.
The way it works is simple, and quiet. You log the small things, a walk, a meal, the way they slept this morning. Cinna remembers them the way a thoughtful neighbor would. Then it gives you back a brief each day: one warm sentence that shows your pet they are noticed. Not analyzed. Noticed.
Over weeks, it becomes a memory you can lean on. The vet asks about a change in appetite, the timeline knows. The flu shot is due, Cinna remembers, with your weather and their breed in mind. They lose a tag, you make a flyer that looks like you cared. Because you did.
Free during beta · 50 founding spots · Cinna+ arrives at launch with a 7-day trial · Made gently, made for them.
Built around them
Six ways Cinna knows your pet, specifically.
Each layer is woven from the small things you log, plus what is verified for their breed. The longer you use Cinna, the more they layer together, until every recommendation reads like it was written for the pet sleeping next to you. Because it was.
Their breed, known
Cinna ships with 52 cited breed dossiers, sourced from AKC, AAHA, OFA, Cornell, TICA, CFA, and Merck. So when your Lab is at risk for joint issues, you hear about it. When your Persian needs gentle warmth in winter, the app knows. When your senior cat is approaching a screening window, the reminder is already there.
Their story, remembered
Every walk, every meal, every weight, every mood you record becomes part of your pet's memory. The Today brief draws from those memories directly. The wellness score reads your real care log. Nothing is borrowed from someone else's pet.
Their age, respected
A puppy needs different care than a 4-year-old, who needs different care than a senior. Cinna shifts food kcal targets, care cadence, and triage thresholds with your pet through every life stage. The same dog quietly gets a different app at 4 months, 4 years, and 14 years.
Their meals, planned
Tag a chicken allergy once and it stays with them: across the food planner, the barcode scanner, every gear pick that ships with treats, every safety check on a new ingredient. You never have to re-explain your pet to the app.
Their body, watched
Body-condition curve, weight trend, breed-target adult weight, projected size from age and growth rate. The food planner tunes daily kcal to all four. The wellness score weighs weight stability against your pet's own baseline, never a stock chart.
Their mood, honored
Two weeks of mood logs become rhythm. A dip surfaces in the brief with a soft note. A streak gets quiet acknowledgement. Mood is treated as data worth respecting, and the detection runs entirely on your phone.
One pet means each layer above can run deep. The depth is the gift.
What Cinna gives you
Three quiet gifts, given daily.
A daily brief that reads like care
One warm sentence, every day, written for them.
The brief never asserts what your pet is doing right now. It hedges with breed averages and your own logged history. "Maine Coons often nap deepest at 4pm. Bella's pace held this week." A single line. Specific. Quiet. The kind of thing a thoughtful friend would say if they were watching with you.
Powered by an on-device engine, no chatbot. The free tier never sends your pet's data anywhere.
A profile that gets to know them
Built to deepen, week after week.
Cinna picks one pet and learns them properly. By week three the brief starts referencing the body-condition trend it saw in your weight log. By month two it knows your pet's normal pace, normal energy, what "off" looks like. The data you give it never has to fight thirty other pets for attention.
Switching pets is a one-tap operation if you ever need it. Most owners never do.
Gentle support, always pointing to the vet
We make the next visit shorter, not the vet redundant.
A beautifully formatted vet timeline PDF (recent journal, care log, weight curve, vaccinations) on tap. Structured Triage questions for the 2am moments when something feels off. Every behavior question lovingly routed to a vet-prep handout, never to a quick-fix training plan. The vet who knows your pet stays the one who knows them.
Behavior content always routes to vet-prep. The vet keeps owning the medical and behavioral picture.
What's inside
Twelve surfaces, all observation-first.
Every feature is built around the same rule: log small, get specific, never assert what you cannot ground. The free tier ships all of these. Premium adds AI for the surfaces that genuinely benefit from it.
Journal that learns rhythm
10-second logs for walks, meals, mood, water, symptoms, meds. The engine reads them as patterns, not events. By week three it can tell you whether your dog's pace is holding.
Custom food planner
Daily kcal target tuned to your pet's weight, life stage, activity level, and breed-typical metabolism. AAFCO profile validation on whatever food you pick. Allergy flags persist across every food surface.
Curated gear and toys
Hand-picked for your pet's breed, life stage, and logged traits. A teething Cocker gets different chews than a senior Maine Coon. Some links earn small affiliate fees; picks are never paid-for.
Behavior questions, vet-prep answers
Ask anything. Cinna routes you to a structured vet-prep sheet, never to a quick-fix training plan. Behavior stays with the vet who can actually rule out medical causes first. We just make their job easier.
Body-condition tracking
Veterinary BCS scale (1 to 9) with a smooth trend curve. The premium pet-photo analyzer scores body condition automatically; the free tier keeps the manual entry sharp.
Care reminders that know your day
Reminders weight in your local weather (heat advisories for brachycephalic breeds), the last walk you logged, and the breed's screening windows. They nudge based on context, not just calendar time.
52 cited breed dossiers
Dog and cat. Every fact sourced from AKC, TICA, CFA, AAHA, OFA, Cornell, Merck, AAFCO. Joint risk, life-stage cues, body-condition curves, screening windows, nutritional needs. No generic content.
AI Triage for the 2am moments
Structured questions, breed-aware urgency ranking, hard rule: anything potentially serious starts with "see a vet immediately." Never gives drug doses. Built to make the call easier, not replace it.
AI Smart Nudges
Care nudges rewritten by AI with your pet's specific context. "Bella's joint-load looks heavy this week" reads better than "exercise reminder." Premium feature; free tier keeps the nudge with engine-default copy.
Vet timeline + lost-pet PDFs
Auto-generated, beautifully laid out. The vet timeline pulls journal, care log, weight curve, body-condition trend, and vaccinations into one page your vet can actually read. The lost-pet flyer prints on letter paper and looks like real signage.
Wellness score (six factors)
Activity, nutrition, weight stability, care compliance, mood, sleep. Computed locally from your logs. Trend arrow, plain-language label, three suggested actions when the score moves.
Discover that surfaces what you need
Tools rest until your data calls for them. A persistent food allergy surfaces the food planner. A weight inflection surfaces growth tools. Generic "feature menu" energy is gone — Discover only shows what is relevant this week.
The five tabs
One pet, five surfaces. Each one quietly gets to know them.
Tap a tab to peek. The carousel pauses while you read.
How the brief is made
A small bit of math, with a soft voice.
Inside Cinna there is a little engine. Not a chatbot. Just a careful piece of math that reads everything you have logged, weighs it by how recent and how meaningful it is, and picks one warm sentence worth saying today. Same inputs, same gentle output. Always.
On the free tier, the engine lives entirely on your phone. The journal, the rhythm, the body-condition curve, the wellness score, the lost-pet flyer, the vet timeline PDF, all generated locally. Your pet stays yours.
When you turn on Cinna+, AI helps with the parts that genuinely benefit from it: a weekly narrative recap, vaccine record OCR, smart nudges rewritten with your pet's specific context. The engine is still the heart underneath. The brief earns its warmth from your actual life with your actual pet.
Pricing
Free does the work. Plus adds the magic.
No multi-tier price ladder. No usage tax on basic features. The free tier is a complete pet companion on its own.
Free forever
$0
- Pet brief, journal, care reminders
- 52 verified breed dossiers (AKC, AAHA, OFA, Cornell)
- Lost-pet flyer + vet timeline PDF
- Body-condition + weight tracking
- 3 AI Triage questions per day
Cinna+
$8.99 / month
or $59.99 / year — 44% off · 7-day free trial
- 30 AI Triage questions per day
- Weekly AI insight — 7-day narrative recap
- AI-rewritten Smart Nudges, breed-tuned
- Vaccine record OCR — paper to structured rows
- HealthKit sleep factor in wellness score
- 7-day free trial · cancel anytime
Founding members lock $59.99 / year forever. Future price increases never apply to you.
On privacy
Your journal stays on your device. Your photos stay on your device. AI features go through our proxy with no logging by default. Sign-in is optional, only required for premium AI. Export everything you've logged at any time.
Founding members
50 founding members. Lifetime Cinna+ for $0.
You give us TestFlight feedback for 8 weeks. We give you Cinna+ for as long as you have a pet. Pick a pet, drop your email.
Thanks. We'll be in touch as soon as the TestFlight beta opens.
We email once when the beta opens, then never again unless you reply.
Frequently asked
The honest version.
Is Cinna a multi-pet app?
No. Cinna picks one pet and learns it deeply. Pick the one you log most — it's almost always the right call.
Does it work for cats and dogs?
Yes. The breed catalog covers 36 dog breeds and 16 cat breeds; every screen is species-aware.
Will Cinna replace my vet?
No. We ship vet-prep sheets and a clinical-context bundle for triage; the vet stays the vet.
Does Cinna train my dog or work on cat behavior?
No. Behavior content routes to a vet-prep handout, never to a training plan.
Where does the breed knowledge come from?
AKC, TICA, CFA, AAHA, OFA, Cornell, Merck — all cited per breed.
Can I export my data?
Yes. Settings → Export everything → JSON + photos as a ZIP. It's your data.