Detective Notes

Detective Notes

By Kyeong Cheon Yang

Detective Notes is a digital companion app for mystery board games that allows users to track clues and suspects on iOS.

The App DNA

What makes this app unique?

Users hire this app to replace physical score pads with a customizable, multilingual digital interface that keeps their deduction strategy private.

For Board game enthusiasts who play deduction-based mystery games and want a digital, paperless alternative to traditional score pads.

Key features

Customizable Deduction Sheetsedge

Users can add or edit suspects, tools, and locations to match specific board game configurations

Multilingual Supportedge

Interface and sharing options available in English, Spanish, French, Italian, Japanese, and Korean

Private Strategy Notesstandard

Ability to hide or customize notes per game to prevent other players from viewing deductions

How much does it cost?

freeFree access to all features

The app operates on a free model with no visible subscription or IAP gates, monetizing through ad inventory.

Velocity

Dormant developmentopaqueShow more...

The app has recorded only one release in the last five months, resulting in a cadence well below the threshold for maintenance. Given the lack of activity since late December 2025, the development momentum is classified as zombie status. There is no evidence of active feature development, bug fixes, or live operations during this period.

See all version history

Who built it?

Kyeong Cheon Yang

1 app tracked · Games

Explore the full publisher profile

User Sentiment

What do users think recently?

How are ratings & reviews evolving?

App Store
4.68 · 217

Not enough recent reviews to extract reliable themes yet.

Read the full review analysis

Competition

Competitive landscape for Detective Notes

How's 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.

Read the market outlook

The rivals identified

Yatzy & Farkle: Dice World

By AppA11y, Inc.

This app competes for the same casual board game enthusiast demographic by providing a digital utility for classic tabletop mechanics.

  • Offers robust VoiceOver accessibility features, significantly expanding the addressable market for visually impaired players.
  • Features a mature, high-volume turn-based multiplayer infrastructure that Detective Notes currently lacks entirely.
Detective Notes vs Yatzy & Farkle: Dice World

Unlock the head-to-head verdict: where this rival wins, and where it loses.

Access the full report for free

The Analyst's Read

Key takeaways for Detective Notes

Where is it heading?

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.

The SWOT

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 2 weaknesses inside
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 2 threats identified

Next best moves

1 Invest

Ship multi-device sync because the lack of group data sharing is a feature gap against Gloomhaven Campaign Tracker → increase retention

The counter-intuitive read

The app's manual-entry model is not a weakness but a moat…

Read the full take

Feature gaps

Multi-device server sync (available in Gloomhaven Campaign Tracker) +2

Since the last report: The app's competitive positioning shifted to acknowledge the threat of automated, image-recognition-based companion tools, while the product remains in a maintenance state.

Bottom line

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.

Unlock 2 critical frictions, 2 market threats and the analyst’s take.

Access the full report for free

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Detective Notes, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

What's new

The app's competitive positioning shifted to acknowledge the threat of automated, image-recognition-based companion tools, while the product remains in a maintenance state.

shifted

Competitive Framing

New Competitive Threats and Opportunities

Expanded Feature Gaps

Cite this report

Marlvel.ai. “Detective Notes Intelligence Report.” Updated May 25, 2026. https://marlvel.ai/apps/detective-notes

Agent Markdown (.md)See methodologyContact support

Data licensed under CC-BY-NC 4.0