Crystal Inventory vs FM Diamonds
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Crystal Inventory
Manage your business inventory and clients with ease. This app offers powerful search and filtering for items, detailed client profiles, and integrated communication tools for sales and service.
- Inventory search by vendor or item type
- Client data management
- Point-of-sale features
- SKU lookup
- Integrated email and text messaging
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With our inventory search, client management, and point-of-sale features, viewing inventory, managing clients, and writing new business has never been easier. Key Features of the Crystal Mobile app include: 1. Browse inventory by vendor or item type, and drill-down to find exactly the right items you're looking for with our unique filtering and attribute system. 2. Easily locate a reference or SKU, within seconds, to access relevant information, allowing you to quickly make decisions and provide options for your clients. 3. Quickly view and edit client data, including contact information, birthdays and anniversaries, milestones, wishlists, and more. 4. Request a SKU transfer or send a client a product photo though our integrated email and text messaging features.
FM Diamonds
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FM Trading is one of the United States' most respected diamond distributors of wholesale polished loose diamonds supplying all jewelry retailers around the nation. We are located in Dallas, TX, and have been a leading wholesale loose diamond distributor in the DFW area.
Screenshots
Verdict
The clearest difference is update cadence: Crystal Inventory at every 2 months against FM Diamonds's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Crystal Inventory ships an update every 2 months, FM Diamonds every 5 months. Both last shipped on November 3, 2026.
| Parameter | Crystal Inventory | FM Diamonds |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (11 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.2 — better | 16.4 |
| Further details — not scored | ||
| Size | 8 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Crystal Tech Solutions, Inc. | FM Trading Company Inc. |
In-app purchases
Crystal Inventory
No in-app purchases
FM Diamonds
No in-app purchases
Questions
Is Crystal Inventory free?
Is FM Diamonds free?
Do Crystal Inventory or FM Diamonds have ads?
Which is updated more often, Crystal Inventory or FM Diamonds?
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