Detective Diary: Whodunit
A Daily Murder Mystery for One
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Interrogate AI suspects and uncover the truth behind each case.
A new mystery every day.
Detective Diary - A solo murder mystery detective game
You are today’s detective.
A new case is assigned to you every day.
Interrogate suspects, investigate locations, and analyze evidence.
Can you uncover the culprit and their motive?
How to Play
1. Review the Case - Check the case details, suspects, and locations
2. Investigate - Question AI suspects and search locations for clues
3. Deduce - Identify the culprit, motive, and method
4. Result - Get your score and rank based on your accuracy
Features
AI Interrogation - Talk to suspects in real time. Their responses change based on your evidence
Daily Cases - A brand-new mystery every day
Efficiency Score - Solve cases with fewer questions for higher scores
Share Your Case - Share your investigation results with friends
Leaderboard - Compete with other detectives
Detective Pass
Play one case per day for free.
Subscribe to Detective Pass to unlock:
3 cases per day
Expanded question points
Ad-free investigation
Think like a real detective.
The truth is in your hands.
Terms of Use(EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
● Rankings got a makeover.
: A new Deduction ranking rewards steady, strong play, and the top 3 now stand on a podium. Your own rank is always shown at the bottom of the list.
● Rewards for the Daily top 3.
: Finish in the top 3 of yesterday's Daily ranking and you'll receive a Total Score bonus, announced when you open the app.
● Check in every day to earn credits.
: Check in and submit cases on This Week's Log to collect credits, plus weekly bonuses. Spend them on extra questions, past cases, and exclusive cases.
● Fixed issues found during play.
: We fixed a few bugs for a smoother investigation.
The developer, Junsu Hwang, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Junsu Hwang
- Size
- 243.5 MB
- Category
- Trivia
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Infrequent
Horror/Fear Themes
Guns or Other Weapons
Contains
Advertising
- In-App Purchases
Yes
- Detective Pass $3.99
- 850 credit $4.99
- 1500 credit $6.99
- 330 credit $1.99
- 100 credit $0.49
- Copyright
- © Coffeebara