Crystal Index
Crystal Index is a reference guide and collection manager for crystals, offering photo-based identification and inventory tracking on iOS.
The App DNA
What makes this app unique?
The tool removes the cognitive friction of manual cataloging for collectors, replacing fragmented physical notes with a unified, searchable digital library.
For Crystal collectors and enthusiasts seeking a digital tool for identification, study, and inventory management.
What does it look like?
Key features
Analyzes photo input for color, structure, and texture to provide ranked identification matches.
Catalogues owned crystals with photo library, origin tracking, and custom organization.
Automated image processing to isolate crystal photos for a clean library aesthetic.
How much does it cost?
Usage-based gates on identification and collection size drive conversion to the annual plan.
Velocity
Maintenance developmentnew contentUX improvementsShow more...
Crystal Index is currently in a maintenance phase, having shipped only two releases over the last two months. The latest version focuses on UX improvements and feature expansion, specifically adding AI identification capabilities and camera integration. Development appears to be in an early stage of refinement rather than a high-frequency cycle. Future updates will likely continue to focus on feature stabilization and onboarding improvements.
Who built it?
Lunar Computing
2 apps tracked · Reference
Strata: Scale of EverythingUser 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 Crystal Index
How's the Reference market?
Crystal Index operates in the Reference category, maintaining a 4+ content rating. The current release cadence (67-day average) suggests a focus on feature-gated monetization rather than rapid iteration.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Crystal Index
Where is it heading?
The reference category is shifting toward AI-integrated utility, and Crystal Index is positioned to capture high-intent users via its identification tool. Sustaining this position requires balancing the free-tier acquisition funnel against the premium monetization gates to ensure the user base grows alongside the revenue.
- The latest release adds AI-powered identification, which strengthens the premium value proposition and provides a clear conversion path for power users.
- A 67-day average update cadence indicates a maintenance-focused development cycle rather than an aggressive feature-expansion strategy.
The SWOT
- AI-powered identification creates a functional barrier against static reference guides.
- CloudKit integration ensures data persistence across user devices.
- Localized encyclopaedia content could capture niche regional collector segments.
Next best moves
Raise free collection limit to ten items because current five-item cap restricts the acquisition funnel → increase long-term retention
+ 1 more prioritized moveThe counter-intuitive read
The narrow free tier is not a weakness but a deliberate filter…
Read the full takeBottom line
Crystal Index effectively uses AI identification to gate premium value, but the restrictive free tier limits the user base needed to sustain long-term growth. Increasing the free-tier utility would expand the funnel, allowing the premium conversion rate to scale with the total user volume.
Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.
Access the full report for freeSources
- [1] App Store
Report last updated