Report updated May 25, 2026
Detective Notes
For board game enthusiasts who play deduction-based mystery games and want a digital, paperless alternative to traditional score pads.
Detective Notes is an established games app that is completely free. With a 4.7/5 rating from 217 reviews, it shows polarized user reception.
What is Detective Notes?
Detective Notes is a digital companion app for mystery board games that allows users to track clues and suspects on iOS.
Users hire this app to replace physical score pads with a customizable, multilingual digital interface that keeps their deduction strategy private.
Current Momentum
v3.0 · 5mo ago
Zombie- Last major update Dec 2025.
What makes this app unique?
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What Are The Key Features?
Users can add or edit suspects, tools, and locations to match specific board game configurations
Interface and sharing options available in English, Spanish, French, Italian, Japanese, and Korean
Ability to hide or customize notes per game to prevent other players from viewing deductions
How much does it cost?
- Free access to all features
The app operates on a free model with no visible subscription or IAP gates, monetizing through ad inventory.
Who Built It?
Enrichment in progress
Publisher profile available very soon
What other apps does Kyeong Cheon Yang make?
What do users think recently?
Analysis in progress, available soon
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Detective Notes?
Where is it available?
Localized markets (2)
How's The Games Market?
How does it evolve in the Games market?
Detective Notes maintains a 4.68-star rating on iOS with 217 total ratings, positioning it as a specialized utility tool rather than a mass-market game. The lack of monetization gates signals a focus on user acquisition within the tabletop gaming niche.
Rank progression
1 active ranking tracked — 30-day window
Which niche is Detective Notes in?
to track clues during mystery board games
Explore the full Board Games Companions niche
Every app in this space — 42 tracked, the niche's live rankings, and Marlvel's editorial take on the job-to-be-done.
The rivals identified
Nemeses(1)
As a massive aggregator of tabletop and card games, GameVelvet competes for the same casual board game audience that uses Detective Notes to organize their physical play sessions.
Contenders(4)
It provides a platform for playing board games, overlapping with the user base that uses Detective Notes to manage their tabletop sessions.
It competes for the 'party game' utility space, providing tools that facilitate the flow of physical social games.
It targets the same 'serious hobbyist' demographic that requires complex tracking tools to manage long-term board game campaigns.
Differentiators
- Includes advanced multi-device server sync, allowing entire gaming groups to view the same campaign data.
- Features specialized combat assistant tools that automate complex monster AI logic for specific board games.
This app serves as a direct functional competitor by providing digital utility for a specific physical board game experience.
Differentiators
- Integrates cross-platform support that allows players to sync game states across different mobile devices seamlessly.
- Provides dedicated private hand management tools that prevent cheating during complex physical board game sessions.
Same space(3)
This app provides a digital implementation of a popular card-based board game, competing for the same tabletop enthusiast audience.
It competes for the casual board game player's time by offering a digital version of a classic physical game.
It acts as a digital facilitator for a traditional physical board game, mirroring the utility-first approach of Detective Notes.
Differentiators
- Integrates 'La Smorfia' cultural references, providing a localized experience that resonates with specific regional audiences.
- Includes built-in audio narration, removing the need for a human caller during the game session.
Compare Detective Notes against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for Detective Notes
Strengths to defend, gaps to attack
Core Strengths
- Multilingual support functions as a B2B distribution barrier into international board game markets
- Customizable setup enables mapping to any physical mystery board game configuration
Critical Frictions
- Manual entry model lacks the automation of competitors like Gloomhaven Scenario Viewer
- No multi-device sync or server-side campaign tracking for gaming groups
Growth Levers
- Integration of image recognition to automate clue tracking from physical game boards
- Partnerships with physical board game publishers for official digital companion status
Market Threats
- Bundled board game apps like Board Games Arena reduce the need for niche utilities
- Automated companion apps with fog-of-war mechanics capture higher-intent tabletop users
What are the next best moves?
Ship multi-device sync because the lack of group data sharing is a feature gap against Gloomhaven Campaign Tracker → increase retention
Competitor analysis shows multi-device sync is a standard differentiator for board game assistants.
Trade-off: Pause the multilingual support expansion to new languages — current 6-language coverage is sufficient for the core market.
A counter-intuitive read
The app's manual-entry model is not a weakness but a moat, as it avoids the technical complexity and potential errors of image-recognition automation in diverse, low-light gaming environments.
Feature Gaps vs Competitors
- Multi-device server sync (available in Gloomhaven Campaign Tracker)
- Automated fog of war (available in Gloomhaven Scenario Viewer)
- Hardware-based input integration (available in Battle Grid Companion)
Key Takeaways
Detective Notes holds a strong niche position through customization, but it lacks the automation and group-sync features of modern tabletop companions, so the PM should prioritize multi-device data sharing to prevent churn to more robust campaign trackers.
Where Is It Heading?
Stable
The tabletop companion market is shifting toward automated, multi-device integrated tools that handle complex game states for the user. Detective Notes remains stable but exposed to these more feature-rich competitors, so the PM must decide whether to remain a lightweight utility or pivot toward group-sync capabilities to stay relevant.
The app maintains a stable rating and update cadence, suggesting a mature product that is not currently pursuing aggressive feature expansion.
The emergence of bundled board game apps threatens to consolidate the utility market, which could erode the install velocity of single-purpose tools.