d20 Calculator is a mobile utility for tabletop RPG players to perform complex dice math and save custom roll presets.
Product velocity
Dormant
Daily rank 🇺🇸
—
Productivity
Sentiment
4.7
341 reviews
Nemesis
Fragmented field
The App DNA
What makes this app unique?
Users hire this app to replace manual dice counting and stat tracking with a faster, digital interface during gaming sessions.
For Tabletop roleplaying game players who need a digital tool to manage complex dice math and track specific attack rolls.
What does it look like?
Key features
Calculates complex dice combinations including addition, subtraction, multiplication, and division
Allows users to save frequently used dice rolls with custom labels for specific attacks
Includes a dx button to roll non-standard dice sizes like d7 or d100
How much does it cost?
The app operates as a free utility with no visible monetization gates or subscription tiers.
Velocity
Dormant developmentopaqueShow more...
The app has been inactive for over six years, with no updates or feature releases since early 2020. Development has effectively ceased, placing the app in a zombie state. There is no evidence of ongoing maintenance, live operations, or feature development.
Who built it?
Lion's Den
4 apps tracked · Productivity
Game Master 5th Edition
Fight Club 5th Edition
Game Master Pathfinder RPGUser Sentiment
What do users think recently?
The recent review mood reads excited. Users appreciate calculator-style interface allows users to perform complex dice combinations with speed and accuracy.
How are ratings & reviews evolving?
What users say, by theme
- Calculator-style interface allows users to perform complex dice combinations with speed and accuracy
- Application crashes during purchase attempts and when saving multiple dice combinations
49 of 49 recent reviews analyzed · high confidence · Excited overall
Read the full review analysisUnlock 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for d20 Calculator
How's the Productivity market?
d20 Calculator maintains a 4.67 rating across 341 reviews, positioning it as a niche utility tool. The lack of recent updates since 2020 suggests a maintenance-mode posture that leaves it vulnerable to more active competitors.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for d20 Calculator
Where is it heading?
The tabletop utility market is consolidating around tools that offer comprehensive session management rather than single-purpose calculators. d20 Calculator remains stable but exposed, as the lack of active feature development prevents it from matching the utility of modern, multi-functional competitors.
- Persistent crashes during purchase and saving presets indicate technical debt, which forces users to seek more stable alternatives.
- The latest release focused on layout sizing and orientation, confirming the app is in a maintenance-mode cycle.
The SWOT
- Calculator-style interface allows rapid input of complex dice formulas
- Integration of game-state tracking features could capture users currently using separate score-keeping apps
Next best moves
Rebuild save-data logic because crashes during preset saving are the top-cited frustration → improve user retention
The counter-intuitive read
The app's lack of monetization is a competitive weakness…
Read the full takeFeature gaps
Integrated game timer (available in ScorePal but absent here) +1
Since the last report: The report identifies new technical instability (crashes during saving and purchasing) that now defines the app's primary competitive risk, shifting the focus from general stagnation to specific stability remediation.
Bottom line
d20 Calculator holds a functional niche through its calculator-style input, but persistent crashes during saving and purchasing erode trust, so the PM must prioritize stability to prevent users from migrating to more reliable competitors.
Unlock 1 critical friction, 1 market threat and the analyst’s take.
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