
Slither.io
Diep.io
Osmos
Mope.io
Mitos.is
Chess.com
Gota.io
The smash hit game! Control your cell and eat other players to grow larger! Play with millions of players around the world and try to become the biggest cell of all!

NovoPsych
Clinical assessment tools for psychologists, therapists and occupational therapists. Send measures by secure link and review scored results, severity bands and reports.

Which is more popular?
Based on our record, Agar.io seems to be more popular. It has been mentioned 289 times since March 2021.
Website, pricing, platforms and company facts side by side.
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In their own words, as submitted to SaaSHub.


No description of Agar.io yet.
Clinical assessment tools for psychologists, therapists and occupational therapists. Send measures such as the PHQ-9, GAD-7 and DASS-21 by secure link and get scored results, severity bands and reports ready to review. The catalogue also includes DSM-5 ADHD assessments and autism screening tools....
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
Agar.io is recommended for players who enjoy fast-paced multiplayer games, competitive challenges, and straightforward gameplay. It's particularly suitable for gamers looking for an easy-to-access game without the need for extensive tutorials or long commitments.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Why Is Everybody Playing... Agario?? :: Agar.io Review
More videos
No ClientForms.app videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Agar.io and ClientForms.app.
ClientForms.app's answer:
Frontend: Next.js 15 (React 19), Tailwind CSS Backend: Supabase (PostgreSQL, Row-Level Security) Authentication: Clerk Payments: Stripe Hosting: Vercel (Sydney region) Database hosting: Supabase (Australian data residency)
ClientForms.app's answer:
Psychologists who assess ADHD and autism. Typically private practice, solo or small group (1-5 clinicians), currently using paper forms and spending hours on admin per assessment. They want something that works and is secure.
ClientForms.app's answer:
Neurodivergent-first design. Most digital forms just replicate paper online. ClientForms is built specifically for ADHD and autism patients - progress bars with time remaining (helps with time blindness), softer colours instead of harsh white, sticky headers so you always know where you are. The forms are designed to reduce anxiety and improve completion rates.
ClientForms.app's answer:
Most clinical software treats patients as an afterthought. ClientForms is designed specifically for neurodivergent users who are filling out the forms, progress indicators, time estimates, calmer colours, predictable layouts. One link, no signup required, works on any device. Patients just open and complete.
Share your experience with using Agar.io and ClientForms.app. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Hey, the game I am looking for was from when agar.io was popular. It was a singleplayer game where your cursor was a little dot. Bigger dots would fly into the screen from every side and you had to avoid them, as if you touched them with... Source: almost 3 years ago
Question: Is it possible to use the "High-Level Multiplayer API" to implement different "game rooms" from the same server? For example, in the case of agar.io, you can create different game rooms that can be joined by you're friends with... Source: about 3 years ago
So, my question is: What kind of servers do IO games like agar.io, diep.io or slither.io typically use? (I'm not talking about the ones who are faking multiplayer of course. Source: about 3 years ago
Tracking ClientForms.app since Dec 2025.
When comparing Agar.io and ClientForms.app, you can also consider the following products.

Slither.io is a multiplayer online video game. Players control an avatar resembling a worm, which consumes multicolored pellets, both from other players and ones that naturally spawn on the map in the game, to grow in size.
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NovoPsych is a tool that is used for outcome monitoring via conducting psychological tests online.
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Diep.io is a multiplayer action game available for web browsers, Android, and iOS, created by Brazilian developer Matheus Valadares. Players control tanks and earn points by destroying shapes and killing other players in a 2D arena.
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The full game includes 47 levels (plus "infinite" bonus content) across 8 distinct level...
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Start as a mouse, eat other players and climb the food chain in this Agar.io alternative.
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