
Developer documentation that anyone can edit

Omni Calculator
DogYearCalc
Scientific Calculator
Dog Pregnancy Calculator
Calcfort
Dogsize.co
What's My Cat Breed
Free calculators for pet owners. Dog age, cat calories, annual pet costs, and more — instant results, no signup needed.

Website, pricing, platforms and company facts side by side.
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| Website | opendevdocs.com | petpawcalc.com |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from South Korea · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Open Devdocs yet.
PetPawCalc is a free collection of calculators built specifically for pet owners in the US. Tools include dog age calculator, cat age calculator, pet food calorie calculator, dog weight tracker, annual pet cost estimator, pet insurance cost estimator, dog pregnancy calculator, heat cycle...
What each product offers, as listed by its team.


No features have been listed yet.
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Open Devdocs and PetPawCalc.
PetPawCalc's answer:
Built as a solo indie project to fill a gap: most calculator sites are generic. PetPawCalc focuses entirely on the questions real pet owners search for every day.
PetPawCalc's answer:
All calculators are built exclusively for pet owners — not generic math tools repurposed for pets. Every tool is designed around real questions pet owners ask, like how old is my dog in human years, how much should I feed my cat, or what will my dog's adult weight be.
PetPawCalc's answer:
PetPawCalc is 100% free with no signup required and no paywalled features. It focuses entirely on pet-specific calculations, so users get accurate, relevant results without digging through unrelated tools.
PetPawCalc's answer:
Dog and cat owners in the United States who want quick, reliable answers to everyday pet care questions — from feeding and weight to costs and health schedules.
PetPawCalc's answer:
HTML, CSS, JavaScript — fully static site built with Jekyll and hosted on GitHub Pages.
Share your experience with using Open Devdocs and PetPawCalc. For example, how are they different and which one is better?