HobbyStack
SkillShare
Meetup
Coursera
Ranker
Pinterest
BucketListly
16personalities
Calcumber
Numara Calculator
SpeedCrunch
Qalculate!
Numi App
Soulver
Numby
Engineering Equation Solver
HobbyStack is a hobby discovery platform built around a database of 180+ activities, each scored across 10 lifestyle dimensions including cost, social level, physical intensity, and skill ceiling. A 3 minute quiz matches your lifestyle, personality, and genuine interests against every hobby and returns a ranked list with reasoning behind each result. No personality types, no vague suggestions. Browse by category, mood, or trait, or explore individual hobby pages with beginner guides and gear recommendations. Free, no account required.
Use variables, functions, and units and see results immediately. Add comments, copy calculations to apps like Word or Excel, or share them through an editable link. Calculate thermodynamic fluid properties with the integrated CoolProp library.
HobbyStack CalcumberHobbyStack's answer
Most hobby suggestions online are vague listicles or personality-type guesses. HobbyStack scores every hobby across 10 lifestyle dimensions and matches people based on the actual overlap between their lifestyle, personality, and genuine interests. The result is a ranked list with reasoning, not just a generic suggestion.
Calcumber's answer:
HobbyStack's answer
Because it treats hobby discovery as a data problem rather than a content problem. Instead of browsing articles or taking a surface-level quiz, you get a structured match against a database of 180+ activities (and growing) scored on real lifestyle factors like cost, social level, physical intensity, and skill ceiling.
Calcumber's answer:
HobbyStack's answer
People who feel stuck in their free time, have tried hobbies that never stuck, or simply want to discover something genuinely suited to how they're wired. Typically 18 to 35, curious, self-aware, and looking for something meaningful to invest their time in.
Calcumber's answer:
HobbyStack's answer
Built after noticing how many people jump from hobby to hobby spending money on things that never fit them. The problem isn't discipline, it's that most people pick hobbies randomly. HobbyStack was built to fix that with a proper database and matching system.
Calcumber's answer:
When starting for a Master of Advances Study in Energy Systems, I was looking for a suitable state-of-the-art calculator. Then I built my own Calculator Calcumber and now the Eastern Switzerland University of Applied Sciences is using Calcumber for teaching students in thermodynamics.
Calcumber's answer:
HTML, CSS, TypeScript, PWA, CoolProp
Calcumber's answer:
SkillShare - Skillshare is a learning platform with online classes taught by the world's best practitioners.
Numara Calculator - A simple but powerful notepad calculator which evaluates expressions as you type.
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donateย .
Coursera - Build skills with courses, certificates, and degrees online from world-class universities and companies
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.