Best Self-Experimentation Apps & Games

221+ iOS apps & games curated and reviewed

4.6 avg rating
20 free apps & games
Updated June 2026

Every iPhone needs a few good self-experimentation apps. We benchmark 221+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Self-Experimentation

Rosebud: AI Journal & Diary#1

Rosebud: AI Journal & Diary by Just Imagine, inc.

Daily Self-Care & Habits
Editor's Choice
💪 Health & Fitness
4.9😊(3.1K ratings)
FreeIn-App Purchases
Rosebud: AI Journal & Diary screenshot 1
Rosebud: AI Journal & Diary screenshot 2
Rosebud: AI Journal & Diary screenshot 3
Rosebud: AI Journal & Diary screenshot 4
Rosebud: AI Journal & Diary screenshot 5
Rosebud: AI Journal & Diary screenshot 6

Create a personalized AI journal that helps users reflect on their day, set goals, track habits, and improve productivity. Start journaling with Rosebud to enhance self-awareness and achieve personal growth.

What We Love

  • 👍 Intuitive and user-friendly
  • 🤖 Helpful AI insights and analysis
  • 💡 Innovative journaling experience
  • 🔍 Ability to dive deeper into entries

Room to Improve

  • 🔁 Repetitive or generic prompts
  • 🔍 Lack of search function for past entries
  • 🔢 Daily entry limit can be frustrating
Clarity: CBT Self Help Journal#2

Clarity: CBT Self Help Journal by Inquiry Health LLC

Mood Tracker, Therapy, ADHD
Strong Contender
🏥 Medical
4.8😊(29K ratings)
FreeAdsIn-App Purchases
#39in Medical
Clarity: CBT Self Help Journal screenshot 1
Clarity: CBT Self Help Journal screenshot 2
Clarity: CBT Self Help Journal screenshot 3
Clarity: CBT Self Help Journal screenshot 4
Clarity: CBT Self Help Journal screenshot 5

Clarity is an all-in-one mental health app offering CBT-based tools to manage stress, anxiety, and low mood. It helps reframe negative thoughts, tracks mood, and provides AI-powered therapy support for personal growth. Start your journey to improved mental well-being today!

What We Love

  • 🚀 Helpful for mental health
  • 👍 Guided journaling and thought analysis
  • 🤖 Useful AI chatbot
  • 📊 Tracks mood and patterns

Room to Improve

  • 💰 Expensive subscription model
  • 🔒 Limited free version
  • 🔒 Paywall for key features
Ultiself | Self-Improvement#3

Ultiself | Self-Improvement by Ultiself Corporation

Biohacker Routine Planner App
Worth Considering
💪 Health & Fitness
4.3😐(3.9K ratings)
FreeAdsIn-App Purchases
Ultiself | Self-Improvement screenshot 1
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Ultiself | Self-Improvement screenshot 6

Achieve limitless potential through precise daily routine optimization. Enhance confidence and focus with the biohacker routine planner app. Optimize your life effortlessly.

What We Love

  • 🚀 Efficient habit tracking
  • 👍 Intuitive and user-friendly interface
  • 💡 Personalized recommendations
  • 🚀 Gamified experience keeps self-improvement fun

Room to Improve

  • 🐛 Glitches and bugs
  • 💰 Expensive subscription model with hidden costs
  • 🔒 Difficulty canceling subscription

More Self-Experimentation apps to explore

4
Breeze: Start Self-Discovery
Breeze: Start Self-Discovery
Breeze: Start Self-Discovery
Routine, Tests, Insights, Calm
Free

Breeze: Mental Health is a self-care app that offers a range of self-tests, reflection exercises, and mental health resources to help users improve their well-being. Take charge of your mental health today with Breeze.

🌟 Lifestyle
(67K)
5
Reflectly - Journal & AI Diary
Reflectly - Journal & AI Diary
Reflectly - Journal & AI Diary
Mood Tracker & Daily Quotes
Free
💪 Health & Fitness
(82K)
6
Dilemmo: Make Better Decisions
Dilemmo: Make Better Decisions
Dilemmo: Make Better Decisions
Thought experiments daily
Free
📚 Education
(658)
7
Callie: Food Self Care Pet
Callie: Food Self Care Pet
Callie: Food Self Care Pet
Food Diary and Journal
Free

Meet your new self-care companion, Callie: Self Care Pet, an AI-powered app that's like having a furry best friend in your pocket. Chat with Callie anytime for deep conversations, support, and self-discovery. Start your self-love journey today!

💪 Health & Fitness
(3.2K)
8
Innermost: Self-Discovery AI
Innermost: Self-Discovery AI
Innermost: Self-Discovery AI
Chat, Reflect, Grow Daily
Free
🌟 Lifestyle
(93)
9
Scientific American
Scientific American
Scientific American
by Springer Nature America, Inc.
Free

A trusted source since 1845, this app offers expert insights on science and technology. Stay up to date on ground-breaking advancements and support science journalism by subscribing today.

📡 News
(9.3K)
10
ALTER EGO
ALTER EGO
ALTER EGO
Self-Discovery Clicker Game
Free

Discover who you are with this self-analysis game that combines literature, philosophy, and psychology. Collect EGO by tapping whispers, progress through the story, and take personality tests to explore different endings based on your choices. Play now to see yourself in a new light!

🎮 Games
(13K)
11
TrueYou Daily Personality Test
TrueYou Daily Personality Test
TrueYou Daily Personality Test
Mental Wellness & Self Care
Free

This personal development tool helps you discover your personality type, strengths, and areas for improvement through daily tests, journaling, and expert guidance. By using this app, you'll gain a deeper understanding of yourself and learn how to leverage your strengths to enhance your career, relationships, and overall well-being.

💪 Health & Fitness
(21)
12
Tangerine: Self-care & Goals
Tangerine: Self-care & Goals
Tangerine: Self-care & Goals
Habits. Mood Tracker. Journal.
Free

Discover a self-care app that helps you track your mood, set goals, and practice mindfulness. Take steps towards improving your well-being with daily reminders and personalized tips. Start your journey to a healthier, happier you today!

💪 Health & Fitness
(6.6K)
13
Dimensional: Personality Test
Dimensional: Personality Test
Dimensional: Personality Test
Personality Tests Reimagined
Free

Dimensional: revolutionizing personality testing as your digital life coach, providing comprehensive insights across multiple dimensions of your personality for improved self-awareness and relationship enhancement. Connect with loved ones and receive personalized guidance based on your unique traits. Discover the depths of who you are!

🌟 Lifestyle
(143)
14
Science for Kids by Tappity
Science for Kids by Tappity
Science for Kids by Tappity
K-5 Educational Learning Games
Free

An educational app for kids aged 4-10 offering over 500 science lessons, interactive videos, real-life experiments, and activities across various science topics. Engage with science experts, learn through play, and enjoy a 14-day free trial to unlock all content. Visit our website for FAQs and reach out to us at hey@tappityapp.com for assistance or feedback.

📚 Education
(8.2K)
15
Dscout
Dscout
Dscout
by dscout, Inc.
Free

Join a community of critical thinkers collaborating with top companies to solve tough problems, influence product designs, and share experiences through surveys, photos, and videos. Make a difference and earn rewards by turning your ideas into action.

🌟 Lifestyle
(3.6K)
16
Meta Viewpoints
Meta Viewpoints
Meta Viewpoints
by Meta Platforms, Inc.
Free

Join us in shaping the future of technology with an app that rewards you for participating in surveys, tasks, and research while giving you full control over your data. Help create impactful insights to improve apps and services, all while earning points for your contributions. Install the app, create an account, and be informed about available programs to start earning rewards today! Terms apply.

🌟 Lifestyle
(21K)
17
BeFreed: Personalized Learning
BeFreed: Personalized Learning
BeFreed: Personalized Learning
Audio-Kurse・Buchkurzfassungen
Free
📚 Education
(3)
18
ResearchGate
ResearchGate
ResearchGate
Access research on the go
Free

Access millions of research publications, connect with researchers, stay updated on new research, track your stats, and download full-texts with this app. Stay connected to the world of science on the go. Sign up now to explore!

🌐 Social Networking
(14K)
19
UserTesting
UserTesting
UserTesting
Get paid to test
Free

Get paid to share your perspective by testing products for top companies worldwide. Join UserTesting, answer screening questions, and share your thoughts out loud to help brands improve. Earn money online fast by taking tests via mobile or desktop. Apply now to start making money online!

🌟 Lifestyle
(2.2K)
20
Zenfulnote: Journal & Heal
Zenfulnote: Journal & Heal
Zenfulnote: Journal & Heal
The Shadow Work Journaling App
Free

Embark on a journey to emotional wellness with an app designed by therapists, designers, and engineers. Experience guided journaling for mindfulness and empathy.

💪 Health & Fitness
(3K)