PetsAge vs catAgeCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PetsAge
Calculate your pet's age in human years by uploading a photo and entering their birthday. You can also add comments, save, and share your pet's age milestones.
- Calculate pet age in human years
- Upload pet photos
- Enter pet birthdays
- Add comments to milestones
- Save and share pet ages
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Know your pet's age at a glance. How Old Pet lets you register your beloved pets' birthdays and photos to easily check their age and human-age equivalent. It supports dogs, cats, rabbits, and hamsters, and manages photos, names, breeds, gender, birthdays, and notes all in one place. See the time elapsed since birth and the age converted to human years at a glance — useful for daily growth records and health management. Display your favorite pet in a Home Screen widget and check your pet's age anytime without opening the app. You can decorate the widget with fonts, colors, and borders, and enjoy seasonal designs that change every month, plus a celebration design during your pet's birthday month. A pet age app that brings you closer to your precious family member. Main Features - Register your pet's photo, name, and birthday - Supports dogs, cats, rabbits, and hamsters - Human-age conversion display - Time elapsed since birthday (months / days), with a countdown starting one week before the birthday - Record breed, gender, and notes - Register death anniversaries - Pet list with photos - Switchable display modes - Home Screen widget support - Widget decoration (4 fonts, 8 colors, 6 border styles) - Seasonal & birthday month decoration (designs change automatically every month, with a celebration design during the birthday month) - Automatic pet breed detection from camera or photos (uses the Oxford-IIIT Pet Dataset, Stanford Dogs Dataset, and 70 Dog Breeds-Image Data Set) 1. Open the app and tap the "+" button. 2. Choose the type of pet. 3. Enter the name, photo, birthday, breed, gender, and more. 4. Tap "Save" to add the pet to your list. 5. Tap a registered pet to view or edit its details. 6. Pin your favorite pet to the widget from the list screen to check its age on your Home Screen. Premium (one-time purchase) - No ads - Birthday & death anniversary notifications (morning of the day, plus optional advance reminders 3 days before or the day before) - Sort the pet list (by birthday or human age) - Unlimited pet registration (free version: up to 4 pets) - iCloud backup of your pet data
catAgeCalc
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calculate your cat's age easily in human years!
Screenshots
Verdict
The clearest difference is in-app purchases: catAgeCalc at none against PetsAge's 1. catAgeCalc also leads on ads (none vs shown) and iOS requirement (16.4 vs 18.0). On price 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
Both are free to download. PetsAge sells 1 one-off in-app purchase. catAgeCalc asks for nothing beyond the download.
| Parameter | PetsAge | catAgeCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (19 ratings) — better | — |
| Positive reviews | 44.8% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 2 months | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Ad-supported | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 11 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | JUN KANAYAMA | Mahsa Mohammadkhorshiddoust |
In-app purchases
PetsAge
- Premium Upgrade$2.99
catAgeCalc
No in-app purchases









