# PuzzleWalk — Find differences in puzzles!

> Gamified spot-the-difference puzzles that convert walking steps into playtime. (iPhone/iPad app by Indiana University.)

- Source: https://appshunter.io/ios/app/puzzlewalk/id1450986746 (this page in markdown: same URL + `.md`)
- Developer: [Indiana University](https://appshunter.io/developer/383456988)
- Category: Games, Health & Fitness, Puzzle
- Price: Free
- Rating: 3.80/5 from 6 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 36 MB
- Languages: American English
- Released: 2019-03-28
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/puzzlewalk/id1450986746/reviews.md

## What is PuzzleWalk?

PuzzleWalk is a gamified app where you can walk through cities around the world and solve 'spot the difference' puzzles. 
The principle of this app is a conversion algorithm between walking step and gaming time. 
Your accumulated walking steps will be automatically converted to gaming time, so your walking step is key to be a PuzzleWalk master!

Your walking steps and puzzle points will give you a final score and make you eligible to receive a gift card every month!
More than a hundred of world cities are programmed along with a thousand of spot the difference puzzles.
Each city contains 5 to 10 puzzles depending on the level and each puzzle contains 5 different spots on two otherwise similar images.

*Notes
- Top 3 score-leaders will be given a monetary reward ($10 gift card) at the beginning of every month via email. Decision will be made based on total scores recorded on the leaderboard at midnight of the last day of the month. 
- The puzzle game will be deactivated during nighttime (10 PM - 8 AM) to avoid sleep disturbances.
- Your walking step is well detected when you make continuous horizontal movement and subtle walking movement may not be detected by the app.
- The app will update your walking step data every 3 to 5 minutes if walking movement is detected. A walking step tracking page will help you monitor your daily, weekly, and monthly walking performance.

*More about PuzzleWalk
PuzzleWalk incorporates evidence-based gamification and Behavior Change Techniques (e.g. user instruction, self-monitoring on target performance, contingent rewards, and goal setting) to motivate people to be more physically active in a fun way. 
The app was developed by the Indiana University School of Public Health and the School of Informatics, Computing, and Engineering researchers. The development of PuzzleWalk was funded by the Indiana University Collaborative Research Grants program.

## Key features

- Convert walking steps to gaming time
- Solve "spot the difference" puzzles
- Explore virtual cities worldwide
- Compete for monthly gift card rewards
- Track daily, weekly, and monthly steps
- Gamified physical activity motivation

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/puzzlewalk/id1450986746/reviews.md

### 5/5 — Newbie

*2020-06-19, version 1.3.06*

I’m so excited to walk!!!

### 3/5 — Still buggy

*2019-11-14, version 1.3.06*

I tried to sign up and it would not accept my password even though I had a number in it ... it would say I didn’t.   Then I tried putting the number first in the password and it worked.  The app then told me it is disabled at night?   I work late nights.  It then said initializing and that went on forever. I just closed the app.  I actually saw the review in the IDS.  I live in Bloomington and am excited to try.  Thanks

### 4/5 — Fun game with cardio!

*2019-07-23, version 1.3.00*

Interesting game that incorporates walking into the game play for added activity. Challenging and enjoyable.

### 5/5 — Interesting game

*2019-06-21, version 1.2.520*

Interesting game with fancy pics! :)

### 1/5 — Registering Problems

*2019-03-28, version 1.1.56*

Looks like it could be a fun app, but every time I try to sign up I receive a message saying my action failed and to double check my information.  I’ve tried 6 times and not even a hint as to why my information is rejected.

## Frequently asked questions about PuzzleWalk

### How does PuzzleWalk convert walking steps to gaming time?

PuzzleWalk uses a conversion algorithm where your accumulated walking steps are automatically transformed into gaming time. This means your physical activity directly fuels your ability to play the puzzles.

### What kind of puzzles are in PuzzleWalk?

The app features "spot the difference" puzzles. Each puzzle presents two nearly identical images with five subtle differences for you to find.

### Can I win gift cards with PuzzleWalk?

Yes, the top 3 score-leaders on the leaderboard at the end of each month are eligible to receive a $10 gift card, awarded via email.

### Does PuzzleWalk have ads?

No, PuzzleWalk does not contain advertisements, allowing for an uninterrupted gaming experience.

### What are the age restrictions for PuzzleWalk?

PuzzleWalk is rated for ages 4 and up, making it suitable for a wide range of players.

### When can I play puzzles in PuzzleWalk?

The puzzle game is deactivated during nighttime hours, specifically from 10 PM to 8 AM, to help prevent sleep disturbances.

### How often does PuzzleWalk update my walking data?

PuzzleWalk updates your walking step data every 3 to 5 minutes, provided that continuous horizontal movement is detected.

### What platforms is PuzzleWalk available on?

PuzzleWalk is available on iPhone, iPad, and iPod devices.

## Version history (last 5 releases)

### 1.3.06 — 2019-09-20

Updated pedometer functionality and synchronization to server.

### 1.3.5 — 2019-09-12

Further updates to logic.

### 1.3.3 — 2019-08-31

Updates to screenshots, functionality, and tips.

### 1.3.00 — 2019-07-11

Further updates to pedometer logic.

### 1.2.520 — 2019-06-13

Update to pedometer logic.

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All apps by Indiana University: https://appshunter.io/developer/383456988

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*