Best Thought Experiments Apps & Games

187+ iOS apps & games curated and reviewed

4.2 avg rating
19 free apps & games
Updated June 2026

Out of 187+ thought experiments apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Thought Experiments

Thoughts - the mind generator#1

Thoughts - the mind generator by Corvin Hartmann

Paradoxa & thought experiments
Editor's Choice
🔍 Reference
4.8(76 ratings)
Free
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Explore complex scientific, societal, and philosophical questions through engaging thought experiments and paradoxes. Each text provides a concise overview in just a few minutes, designed to stimulate critical thinking and deeper understanding.

One Good Thing: Daily Thought#2

One Good Thing: Daily Thought by Supratim Dam

One Idea. Carry or Let Go.
Strong Contender
🌟 Lifestyle
4.4(22 ratings)
FreeAdsIn-App Purchases
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This app delivers a single, original idea daily from diverse fields like philosophy and science. Users can choose to 'carry' or 'let go' of the thought, with optional premium features for deeper insights and visualization.

Dilemmo: Make Better Decisions#3

Dilemmo: Make Better Decisions by DEEPSTASH SRL

Thought experiments daily
Worth Considering
📚 Education
4.0(746 ratings)
FreeIn-App Purchases
#79in Education
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Explore your personality through immersive ethical dilemmas and thought experiments. Make impossible choices in branching video scenarios to uncover your decision-making patterns and gain self-discovery insights across various life domains.

More Thought Experiments apps to explore

4
Xmind: AI Mind Map, Brainstorm
Xmind: AI Mind Map, Brainstorm
Xmind: AI Mind Map, Brainstorm
全功能的思维导图和头脑风暴效率工具,理清思路,捕捉灵感
Free

This app is a comprehensive tool for mind mapping and brainstorming, helping users organize thoughts, manage projects, and visualize information. It offers various structures, templates, and customization options to enhance creativity and productivity. Collaborate in real-time and export your work in multiple formats.

30+ Templates9 Structure TypesAudio Notes
📊 Productivity
(7K)
free with in-app purchases
5
Easlo Experiments
Easlo Experiments
Easlo Experiments
Experiment Your Way
Free

This app encourages an experimenter mindset for personal growth. Track new habits, routines, or products for a set duration, logging progress and observations. Review your trials to decide if they fit your life.

Set custom experiment frequency and durationLog progress with notes and photosHome screen widgets for mindfulness
📊 Productivity
(15)
free with in-app purchases
6
Boxloop
Boxloop
Boxloop
by 杰 郑
Free

Trapped in an endless loop, you must decipher deliberately convoluted rules to escape a quantum simulation. This challenging puzzle game tests your logic and problem-solving skills.

Endless looping gameplayConvoluted puzzle mechanicsLogic-based challenges
🎮 Games
(11)
ad-supported
7
Nerdish: General Knowledge App
Nerdish: General Knowledge App
Nerdish: General Knowledge App
Improve Your General Knowledge
Free

Expand your general knowledge with concise, engaging articles on diverse topics like science, history, and art. Designed for busy adults, this app delivers quick, fact-checked reads in 5-10 minutes daily to foster lifelong learning and personal growth.

Concise articles on science, history, art, and moreDaily 5-10 minute learning sessionsFact-checked and well-structured content
📚 Education
(2.4K)
free with in-app purchases
8
COPYMIND: AI Twin
COPYMIND: AI Twin
COPYMIND: AI Twin
Empower your life with AI twin
Free

This app creates a personalized AI twin from your words, patterns, and goals to help you untangle thoughts, make decisions, and gain self-awareness. It offers daily reflections, decision support, and personalized long-form readings.

Personalized AI twinDaily reflection promptsDecision-making support
🌟 Lifestyle
(1.3K)
free with in-app purchases
9
MindNode – Classic
MindNode – Classic
MindNode – Classic
Mind Mapping, Brainstorm Ideas
Free

Capture, organize, and visualize your thoughts and ideas. This app allows you to brainstorm, structure complex projects, and share your vision in various formats. Stay productive across all your devices with seamless iCloud integration.

Capture thoughts as text, images, links, or tasksOrganize ideas with hierarchical outlines and mind mapsStyle mind maps with themes and stickers
📊 Productivity
(1.9K)
free with in-app purchases
10
Universe Splitter
Universe Splitter
Universe Splitter
Quantum Decision-Maker
$1.99

This app uses quantum physics to help you make decisions. Input two choices, and it uses a remote quantum device to determine which reality you end up in, allowing you to live out both outcomes in separate universes.

Quantum decision-makingSplits universes based on choicesUses remote quantum device
🎬 Entertainment
(1.5K)
paid
11
ALTERD - Expand Consciousness
ALTERD - Expand Consciousness
ALTERD - Expand Consciousness
Journal, Insights & Community
Free

This AI-powered app offers a private space for exploring altered states of consciousness through journaling and community interaction. It provides AI analysis of your thoughts for personal growth, creativity, and self-understanding, alongside educational resources and harm reduction guides.

AI-powered journalingState-aware thought captureAI insight summaries
💪 Health & Fitness
(640)
free with in-app purchases
12
Sort AI - Thought Clarity
Sort AI - Thought Clarity
Sort AI - Thought Clarity
Feel heard, Think clear, Grow
Free

This AI companion helps you organize thoughts, untangle emotions, and gain self-awareness through guided reflection. It focuses on understanding you rather than providing answers, acting as a private space for personal growth.

Untangle emotional overloadSpot recurring thought patternsReflect at your own pace
💪 Health & Fitness
(37)
free with in-app purchases
13
ClearMind – AI Thought Journal
ClearMind – AI Thought Journal
ClearMind – AI Thought Journal
Set down your mental load
Free
📊 Productivity
(0)
14
Thought Path: Quick Notes
Thought Path: Quick Notes
Thought Path: Quick Notes
Remember ideas, tasks, notes
Free

Quickly capture thoughts, ideas, and tasks in a digital inbox. Visualize your mental output over time through maps or search. Automate capture and review with integrations.

Quick thought captureTask managementIdea organization
📊 Productivity
(9)
freemium
15
Thought Detox
Thought Detox
Thought Detox
Clear Your Mind
Free
$1.99 | 100% OFF

This app provides a private digital space to write down and discard negative thoughts, promoting mental peace. It offers mindfulness tracking through Apple Health integration and home screen widgets. The app also syncs with Wind Down on iPhone for pre-sleep reflection.

Private thought journalingDiscard negative thoughtsApple Health integration
💪 Health & Fitness
(12)
free
16
Shower Thoughts - Thoughts & Ideas From the Shower
Shower Thoughts - Thoughts & Ideas From the Shower
Shower Thoughts - Thoughts & Ideas From the Shower
by Netsells Ltd
Free

Browse interesting thoughts and philosophical questions from a popular Reddit community. This app offers an engaging way to discover new perspectives, perfect for commutes or downtime. It's designed by Reddit users, for Reddit users.

Browse r/showerthoughtsDiscover thoughts and ideasPhilosophical questions
🎬 Entertainment
(25)
free with in-app purchases
17
What if..?
What if..?
What if..?
questions for fun game
Free

Engage in a game of hypothetical scenarios with hundreds of thought-provoking questions. Answer yes or no to crazy, funny, confusing, and philosophical prompts, then compare your choices with other users. Share intriguing questions with friends and make up your mind!

Hundreds of hypothetical questionsYes/No answer formatCompare answers with other users
🎮 Games
(211)
free with in-app purchases
18
Mind Window
Mind Window
Mind Window
Researching how we think
Free

This app helps you track your thought patterns and understand how they may impact your well-being. By answering random check-ins throughout the day, you contribute to a scientific research database. Discover insights into your thinking and explore changes over time.

Track thought patternsContribute to research databaseDaily check-in reminders
💪 Health & Fitness
(18)
free
19
Flower Tale
Flower Tale
Flower Tale
by 艳召 张
Free

This educational game challenges your mind to guess answers using the fewest possible hints. It teaches strategic questioning, critical thinking, and problem-solving skills through interactive puzzles.

Guess answers with fewest hintsDevelop critical thinking skillsLearn information theory principles
📊 Productivity
(137)
ad-supported
20
Think Again
Think Again
Think Again
by Jeremy Stangroom
Free
📚 Education
(2)