Comparison

Foster Kitten vs CatCompanion

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Foster Kitten

This app helps foster caregivers meticulously track the health and development of kittens. It logs daily weights, feedings, symptoms, and medications, offering AI-powered stool assessments and growth analysis to inform care decisions and facilitate communication with veterinarians.

Highlights
  • Daily health and development logging
  • AI-powered stool assessment
  • Growth and feeding monitoring
  • Socialization tracking
  • Caregiver and shelter management tools
  • Baby Book for milestones
Features
Read full description

Foster Kitten helps caregivers track kitten health, make more informed care decisions, and communicate more effectively with veterinarians and shelters during their fragile first 12 weeks. Tracking Log daily weights, feedings, solid food, symptoms, medications, photos, and clinical notes. Use hands-free voice logging for weights, feedings, and stool. Snap a photo of your kitten's stool for an instant assessment powered by KittenAI. Monitor growth, feeding, stool quality, and symptoms so changes don't go unnoticed. Track daily socialization across handling, sounds, surfaces, and social experiences. Browse a library of care resources and age-appropriate development guides. By applying veterinary research and established care standards to your data, Foster Kitten highlights when growth and health are on track, and when something may warrant a vet conversation. Designed for Foster Care Whether you're caring for your first bottle baby or managing a full litter, Foster Kitten is built for real foster workflows. Track mother cats alongside their litters with queen care tools for nursing, mammary health, and reproductive milestones. Record the shelter-assigned Animal ID and source organization for each kitten. With Baby Book, document developmental milestones to create a keepsake that travels with your kitten to their forever home. Built for Shelters and Rescues With Shelter Edition, shelters, rescues, and clinics can manage their foster network and see each caregiver's availability, experience, and home environment when placing kittens. With caregiver consent, they can follow a kitten's records in real time for more timely, better-informed care conversations. Organizations can request Shelter Edition in Account Settings at no additional cost. Features • Day Cards: a daily summary across your logs, with any recommended vet contact • Daily weight tracking with age-adjusted growth analysis • KittenAI-powered stool assessment from photos • Clinical Patterns timeline with age-aware trend windows • Feeding history with weight-anchored, age-adjusted intake expectations • Solid food log for weaning kittens • Veterinary consultation records with recheck reminders • Stool, emesis, and upper respiratory symptom tracking • Today's Meds: every dose due across your kittens in one list, with one-tap dose logging • Medical photo tracking with anatomical and condition tags • Clinical notes with automatic health context snapshots • Baby Book with milestone photos, narratives, and PDF export • Parasite risk assessment with deworming guidance • Vaccination, diagnosis, and test result records • Consolidated reports with export and live, consent-based sharing with shelters • Works on iPhone, iPad, and web browsers Thoughtful Support Foster Kitten supports attentive caregiving by organizing your observations. It does not diagnose conditions or replace veterinary care. It helps you notice patterns early and communicate clearly with your vet. Learn more at https://fosterkitten.app/tutorials Subscription Information Foster Kitten offers Basic ($2.99/month) and Pro ($3.99/month), which adds advanced features including medical photo management. Both plans begin with a 7-day free trial. The free trial never converts into a paid subscription, and Foster Kitten never charges you when it ends. If you want to keep using Foster Kitten, you choose to subscribe. Once you subscribe, the subscription renews automatically each period unless you turn off auto-renew at least 24 hours before the period ends. Payment is charged to your Apple ID at the time of purchase. You can manage or cancel your subscription anytime in your Apple ID account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://fosterkitten.app/privacy

About

CatCompanion

Features
Read full description

Your cat's whole story, beautifully kept - and the most complete toolkit for breeders. Whether you have one beloved cat or run a professional cattery, CatCompanion brings health, weight, pedigrees, breeding, buyers and everyday care together in one place. CAT PROFILES Create a rich profile for every cat with breed, color (EMS), pedigree and photos. Track weight, vaccinations, health checks, diet and notes. Each profile greets you with birthday celebrations, on this day memories and a one-tap diary, so your cat's story grows every day. HEALTH AND WEIGHT Log weights and see the trend at a glance, record vaccinations, vet visits and health protocols, and get reminders so you never miss a dose. LITTERS AND KITTENS Register litters and follow each kitten's growth, weight and readiness for a new home. Vaccinate the whole litter in one go - type it in or scan the certificate. YOUR OWN CATTERY WEBSITE The app builds your public cattery page: new kittens, litters and news appear instantly, and buyers can apply right there - in their own language. BUYERS FOLLOW THEIR KITTEN HOME Every kitten gets a buyer portal: photos, weekly weights, milestones and a countdown to homecoming, shared the moment you add them. BUYER MANAGEMENT Interest requests, waitlist, reservations, deposits and the moving card - vaccines, pedigree and records travel with the kitten to its new owner in one tap. SCAN A PEDIGREE - DONE Photograph a pedigree or pet passport and AI reads ancestors, registration numbers and titles into the right place in the tree. Add a kitten straight from its pedigree. BREEDER TOOLS Color calculator (EMS), inbreeding calculator (COI), due date calculator and compatible male search - everything a serious breeder needs to plan with confidence. AI CAT ASSISTANT Get personalized answers about behavior, health, nutrition and breeding, based on your own cats. PEDIGREES AND REGISTRY View family trees, trace origins and explore the global cat registry. CALENDAR Heats, matings, vaccines, vet visits and homecomings in one calendar, with reminders. COMMUNITY AND MARKETPLACE Buy, sell and connect with breeders and fellow cat owners. Follow the owners of your cat's littermates and share photos and updates in the community feed. Perfect for breeders and cat lovers alike. CatCompanion offers optional subscriptions: Cat Owner Premium and Cat Breeder Premium. Privacy Policy: https://catcompanion.org/privacy/ Terms of Use: https://catcompanion.org/terms/

Screenshots

Foster Kitten4 screens
CatCompanion4 screens

Verdict

The call

The clearest difference is update cadence: CatCompanion at every 3 days against Foster Kitten's every 9 days. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Foster Kitten sells 2 in-app purchases, starting at $2.99 per month and CatCompanion sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Foster Kitten ships an update every 9 days, CatCompanion every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Foster Kitten versus CatCompanion: the parameters behind the verdict, then further details
ParameterFoster KittenCatCompanion
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 9 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better16.6
Further details — not scored
Size64 MB94 MB
Age rating4+4+
DeveloperDaniel Odysseus WengerPernilla Richette

In-app purchases

2 purchases

Foster Kitten

Subscriptions2
  • Foster Kitten (Basic)$2.991 Month
  • Foster Kitten (Pro)$3.991 Month
4 purchases

CatCompanion

Subscriptions4
  • CatCompanion Plus14 Days trial$2.991 Month
  • Cat Breeder14 Days trial$7.991 Month
  • CatCompanion Plus Yearly14 Days trial$24.991 Year
Show 1 more
  • Cat Breeder Yearly14 Days trial$59.991 Year

Questions

Is Foster Kitten free?
Foster Kitten is free to download, with in-app purchases available.
Is CatCompanion free?
CatCompanion is free to download, with in-app purchases available.
Do Foster Kitten or CatCompanion have ads?
Neither Foster Kitten nor CatCompanion shows ads.
Which is updated more often, Foster Kitten or CatCompanion?
Foster Kitten ships an update every 9 days, and CatCompanion every 3 days. Most recently, Foster Kitten was updated on October 30, 2026 and CatCompanion on October 31, 2026.

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