
Codecademy
Exercism
Treehouse
edX
LeetCode
Coursera
Pantheon
Achieve code mastery through challenge.

PetHub+
Tractive
Minupet
PetDesk
FoundIt!
ScanKeep
MaRu helps lost pets get home faster with QR pet tags, digital pet profiles, and scan location alerts.

Which is more popular?
Based on our record, Codewars seems to be more popular. It has been mentioned 160 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | codewars.com | marupets.app |
| Pricing | — | |
| Company | — | Startup from Turkey · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Codewars yet.
MaRu is a pet safety platform that helps lost dogs and cats find their way home faster. Each pet gets a unique QR tag connected to a digital pet profile. When someone finds and scans the tag, they can access essential pet information while the scan location can be sent directly to the pet owner's...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Codewars is recommended for beginner to advanced programmers who enjoy learning through practice and are interested in improving their algorithmic thinking and coding skills in a gamified environment. It is particularly beneficial for those preparing for coding interviews or seeking to reinforce their programming knowledge in a fun and interactive way.
No analysis of MaruPets.app yet.
Walkthroughs and reviews on video.
MaRu | Smart QR Pet Safety for Lost Pets
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Codewars and MaruPets.app.
MaruPets.app's answer:
MaRu combines QR pet identification, digital pet profiles, scan location alerts, and privacy protection in one simple platform.
When a lost pet's QR tag is scanned, the finder can access essential information without needing to install an app. At the same time, private owner information remains protected, and the scan location can be sent directly to the owner's MaRu inbox.
MaRu is designed to make the process simple for both pet owners and the people who find their pets.
MaruPets.app's answer:
MaRu focuses on making lost pet recovery simple, fast, and privacy-conscious.
Instead of requiring the finder to download an app or exposing private owner contact details, MaRu allows anyone to scan a QR tag with their phone and access the information needed to help the pet. The scan location can also be sent to the pet owner's MaRu inbox.
MaRu brings pet identification, location awareness, and privacy together in one experience.
MaruPets.app's answer:
MaRu is designed primarily for dog and cat owners who want an additional layer of safety and identification for their pets.
It is especially useful for pet owners concerned about their pets getting lost, as well as people who want a modern alternative to traditional engraved ID tags.
MaRu can also be useful for pet shelters, rescue organizations, breeders, and other pet care communities.
MaruPets.app's answer:
MaRu started with a simple idea: losing a pet is stressful, and helping them get home should be easier.
Traditional pet tags often provide limited information, while sharing a phone number publicly can create privacy concerns. We wanted to build a safer and more flexible alternative.
That idea became MaRu: a digital pet safety platform where each pet can have a unique QR identity, an accessible public profile, and a safer way to reconnect with their owner.
Our mission is simple: less searching, less waiting, and a safer way home for every pet.
MaruPets.app's answer:
MaRu is built using Flutter for the mobile application, Supabase for authentication, database, and backend services, and modern web technologies for the public QR pet profiles and website.
Key technologies include:
Share your experience with using Codewars and MaruPets.app. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Edabit offers a learning experience similar to learning a new language, focusing on smaller and more frequent exercises that build proficiency over time. Like Codewars, Edabit provides many challenges that increase in...
In conclusion, while Leetcode remains a valuable resource for coders, the platforms listed above offer varied approaches to learning and improving coding skills. Whether you're drawn to the gamified learning...
This LeetCode alternative has excellent features for anyone looking to sharpen their coding skills. Codewars uses kata, which are small coding exercises that are community developed to help you master your language of...
We have no reviews of MaruPets.app yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Recently, I was working on a coding kata on codewars.com. Early on, I started thinking that a potential solution might utilize recursion, a concept that involves a function calling itself. However, I quickly realized that my grasp of... - Source: dev.to / almost 3 years ago
Get more involved. Look into internships and junior SWE positions to get a sample of what you'd be applying for once you graduate. Solve coding challenges, start working on a portfolio of your personal works. I recommend codewars.com for... Source: almost 3 years ago
I'd recommend to play around with some basic coding challenges on leetcode.com or codewars.com. If the course prepared you well you won't find this useful, but playing around with them will make sure that you are comfortable with basics... Source: about 3 years ago
Tracking MaruPets.app since Sep 2026.
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