
Reaction-Time-Test.org
reaction-time-test.io
ReactionTests
ReactionTest.app
QTKTest
Human-Benchmark.org
Best Reaction Test
Quick, free online tests for reaction time, memory, focus, and attention.

CardGames.io
World of Solitaire
Solitaired
123 Free Solitaire
Microsoft Solitaire Collection
NetSolitaire
Online Solitaire
Play free Solitaire and classic card games online, with no download required.
Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | picktests.com | solitaire-arcade.com |
| Pricing | — | |
| Platforms | ||
| Company | 1 - 9 employees · 2026 | Startup from Australia · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


PickTests is a collection of free browser-based tests for reaction time, memory, focus, attention, aiming, and visual tracking. Current tests include Reaction Time Test, Aim Trainer, Sequence Memory, Number Memory, Multiple Object Tracking, and Stroop Test. No account or setup is required. Users...
Solitaire Arcade is a free browser-based card game website featuring classic games you can play online with no download required. The site includes games such as Solitaire, FreeCell, Spider, Tri Peaks, Hearts, Spades and more, alongside clear how-to-play guides, rules and strategy content.
What each product offers, as listed by its team.


How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing PickTests and Solitaire Arcade.
PickTests's answer
PickTests started as a small independent project built one browser test at a time.
The goal was to create focused online tests that load quickly, are easy to understand, and do not require an account. After the first few tests were released, the project gradually expanded into a collection covering reaction time, memory, attention, aiming, and visual tracking.
The current focus is not only adding more tests, but also improving the existing experience, including mobile interactions, result pages, and local progress tracking.
Solitaire Arcade's answer:
Solitaire Arcade began as an independent project to build simple, accessible versions of classic card games for the web. It launched in August 2026 as the first live project under the broader Chalky Arcade game-development project and continues to grow with new games, guides and player features.
PickTests's answer
PickTests is built with:
The website does not currently use a frontend framework, backend account system, or database. Each test runs directly in the browser.
Solitaire Arcade's answer:
Solitaire Arcade is built with Next.js and JavaScript and hosted on Vercel, with Neon used for database services.
PickTests's answer
PickTests keeps online ability tests simple and easy to access. Users can start immediately without creating an account, installing anything, or going through a long setup process.
Each test focuses on one clear task, with straightforward results and a design that works on both desktop and mobile browsers. Where useful, recent scores and personal bests are stored locally in the browser.
Solitaire Arcade's answer:
Solitaire Arcade combines free browser-based card games with detailed how-to-play guides, rules and strategy content in one place. The focus is on straightforward gameplay, clear information and a consistent experience across the site.
PickTests's answer
PickTests is mainly for students, gamers, curious web users, and anyone who wants to test their reaction time, memory, focus, attention, or aiming skills.
It is also useful for people who want a quick personal benchmark and would like to repeat a test later to compare their own results.
Solitaire Arcade's answer:
Solitaire Arcade is for casual card-game players, Solitaire fans and people learning classic card games. It is designed for anyone who wants to play free browser-based games or learn the rules and strategies behind them.
PickTests's answer
PickTests is a good choice for people who want a quick, free test without creating an account or navigating a complex training platform.
The website focuses on lightweight browser-based tests, clear results, and fast repeat attempts. It is designed for casual users who want to check their reaction time, memory, attention, or aiming skills without unnecessary steps.
Solitaire Arcade's answer:
Solitaire Arcade is designed for players who want to start playing quickly without downloads or unnecessary complexity. Alongside the games, players can find clear rules, how-to-play guides and strategy articles to help them learn and improve, and track their progress as the improve their skills.
Share your experience with using PickTests and Solitaire Arcade. For example, how are they different and which one is better?
When comparing PickTests and Solitaire Arcade, you can also consider the following products.

Reaction Time Test - Measure Your Response Speed Online
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How fast are your reflexes? Take the reaction time test and find out your speed in milliseconds.
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Over 50 beautiful free web based Solitaire games. Klondike, Spider, FreeCell and more.
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Test your visual reaction time for free. Click when the screen turns green, complete five rounds, and track your average and consistency on your device.
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Fastest loading solitaire game on the internet. No ads, registration, or download required.
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