Diamond Rap Calculator Lite is a business utility for diamond industry professionals to calculate stone prices based on Rapaport list parameters on iOS.
The App DNA
What makes this app unique?
Users hire this app for quick, offline-accessible price calculations based on specific stone attributes, reducing manual math for brokers and manufacturers.
For Diamond industry professionals including manufacturers, buyers, sellers, and brokers.
What does it look like?
Key features
Calculates stone value based on Rapaport price lists, including shape, color, and clarity parameters.
Applies custom discount percentages to base Rapaport values to determine final stone price.
Displays RAP value, price per carat, and total stone price simultaneously.
How much does it cost?
The app is distributed as a free utility with no visible in-app purchases or subscription gates.
Velocity
Dormant developmentopaqueShow more...
Diamond Rap Calculator Lite has been inactive for nearly a decade, with no updates or feature releases since 2016. The last release was a minor update that only adjusted the application name and provided generic system improvements. Given the lack of development activity for over 3,600 days, the app is classified as a zombie project.
Who built it?
User Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Diamond Rap Calculator Lite
How's the Business market?
Diamond Rap Calculator Lite maintains a 5-star rating on the App Store based on a single review. The lack of updates since 2016 signals a zombie-state product that is not competing for new market share.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Diamond Rap Calculator Lite
Where is it heading?
The diamond pricing market is consolidating around real-time, API-integrated platforms that offer higher accuracy than static calculators. Diamond Rap Calculator Lite is exposed to total churn as its lack of updates creates a widening gap between its 2016-era logic and current industry requirements.
- The 118-month update gap indicates the developer has abandoned the product, which forces professional users to seek more reliable, actively maintained alternatives.
The SWOT
- Simple, single-purpose utility provides immediate value for Rapaport-based pricing.
- Offline-first architecture allows usage in environments without stable connectivity.
- Integration of real-time Rapaport API feeds could transition the app from a static calculator to a live market tool.
Next best moves
Sunset the application because it has been in maintenance-mode for 118 months → eliminate brand risk from outdated pricing logic
The counter-intuitive read
Users report: The app's greatest strength is its 118-month silence…
Read the full takeSince the last report: The intelligence report has shifted from a neutral maintenance-mode assessment to a critical recommendation to sunset the product due to its status as a professional liability.
Bottom line
Diamond Rap Calculator Lite provides a reliable, offline-first utility for basic diamond pricing, but its decade of inactivity makes it a liability for professional workflows, so users should prioritize migrating to actively maintained alternatives that support real-time data updates.
Unlock 2 critical frictions, 1 market threat and the analyst’s take.
Access the full report for freeSources
- [1] App Store, source
Report last updated