Comparison

Mind Window vs MindSampler

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mind Window

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.

Highlights
  • Track thought patterns
  • Contribute to research database
  • Daily check-in reminders
  • Discover thinking statistics
  • Explore changes over time
  • Customizable assistant guide
Features
Read full description

Do you ever wonder if there is some rhyme or reason to how you think? How often are your thoughts focused on troubling topics, the past, the future, or memories and imaginative thinking? Mind Window helps you to track the way that you uniquely think and discover how these patterns of thought may affect your well-being. Mind Window is part of a scientific research project, developed at the University of Arizona, to develop a large international database of thoughts in daily life. The purpose of this app is to identify patterns of thought by asking questions about user’s thoughts at random moments throughout their day-to-day life. FEATURES: - Allows you to help develop an international research database of patterns of thought - Check-ins provide a convenient reminder so that you can track your thoughts throughout the day - Statistics: - Let you discover what kinds of thoughts are commonly on your mind - Learn about the patterns of thought you have - Receive feedback that helps you identify how your thinking may impact your well-being - Explore changes in thought patterns over time - Customization: - Choose an assistant to serve as your guide while using the app - Explore results by day, week, month, or all times - Using Mind Window will allow you the opportunity to participate in upcoming and collaborative research in psychology, genetics, and neuroscience. *** An Institutional Review Board responsible for human subjects research at The University of Arizona reviewed this research project and found it to be acceptable, according to applicable state and federal regulations and University policies designed to protect the rights and welfare of participants in research. *** Please note that Mind Window is a tool for use in scientific research. Users must be at least 18 years of age and fluent in English. An Institutional Review Board responsible for human subjects research at The University of Arizona reviewed this research project and found it to be acceptable, according to applicable state and federal regulations and University policies designed to protect the rights and welfare of participants in research.

About

MindSampler

Participate in scientific research by answering short questions and experiments throughout your day. Contribute to understanding human thought, feelings, and behavior.

Highlights
  • Contribute to scientific understanding
  • Receive daily experiment notifications
  • Answer short questions
  • Enter study codes
  • Track daily life insights
Features
Read full description

Help scientists understand how people think, feel, and behave as they go about their daily lives. Enter your study code and start receiving notifications throughout the day with short experiments or questions to answer.

Screenshots

Mind Window4 screens
MindSampler4 screens

Verdict

The call

The clearest difference is rating: Mind Window at 4.0 against MindSampler's 2.0. Mind Window also leads on ratings volume (18 vs 4). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Mind Window holds the better App Store score, 4.0 against 2.0. Both are backed by a comparable volume of ratings — 18 and 4 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 6, 2026 and June 5, 2026 respectively.

Scorecard2 real differences · 8 level
Mind Window versus MindSampler: the parameters behind the verdict, then further details
ParameterMind WindowMindSampler
PriceFreeFree
Rating4.0 (18 ratings) — better2.0 (4 ratings)
Positive reviews50.0% of reviews—
Number of ratings18 — better4
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.615.0 — better
Further details — not scored
Size85 MB52 MB
Age rating17+4+
DeveloperUniversity of ArizonaMindSampler Inc.

Customer experience

Mind Window

All ratings17 ratings
Positive76.5%
Neutral11.8%
Negative11.8%
Written reviews14 reviews
Positive50.0%
Neutral21.4%
Negative28.6%

MindSampler

All ratings4 ratings
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

None

Mind Window

No in-app purchases

None

MindSampler

No in-app purchases

Questions

Is Mind Window free?
Mind Window is free to download, with no in-app purchases.
Is MindSampler free?
MindSampler is free to download, with no in-app purchases.
Which has better reviews, Mind Window or MindSampler?
Mind Window is rated higher. Mind Window averages 4.0 out of 5 from 18 ratings, while MindSampler averages 2.0 from 4 ratings.
Do Mind Window or MindSampler have ads?
Neither Mind Window nor MindSampler shows ads.
Which is updated more often, Mind Window or MindSampler?
Mind Window ships an update every 2 months, and MindSampler every 2 months. Most recently, Mind Window was updated on September 6, 2026 and MindSampler on June 5, 2026.

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