About
NM Collector is dedicated philatelic software built for serious stamp collectors who need precise, private, and portable collection management. Unlike generic spreadsheets or cloud-based databases, NM Collector ships with a purpose-built stamp template that includes fields for Scott and Stanley Gibbons catalog numbers, denomination, design, country, issue type, watermark and perforation variants, rarity classification, and detailed condition grading (centering, gum status, cancel type, and more). The software runs entirely offline across Windows, macOS, Linux, iOS, and Android, ensuring sensitive inventory data—sometimes representing thousands of dollars in rare stamps—never touches an external server. Mobile apps let collectors reference and update their inventory on a phone or tablet at bourses, shows, and auctions without requiring an internet connection. Beyond stamps, the platform supports coins, firearms, knives, geological specimens, and other collectibles under one subscription, making it ideal for multi-collection hobbyists. Custom fields and dropdown values let collectors tailor templates to niche specialties such as first day covers, postal history, or topical thematic sets. NM Collector is particularly valuable for estate planning, insurance documentation, and resale preparation, providing exportable, well-structured records. A 30-day full-featured free trial requires no credit card, and a free version remains available after the trial period ends.
Key Features
- Philatelist-Specific Catalog Fields: Built-in fields for Scott and Stanley Gibbons catalog numbers, watermark variants, perforation types, printing varieties, denomination, issue type, and topical categories—no workarounds needed.
- Full Offline Operation: All collection data is stored locally on your device. No cloud account is required, eliminating privacy and security risks for high-value philatelic inventories.
- Cross-Platform Mobile & Desktop Access: Native apps for Windows, macOS, Linux, iOS, and Android let you consult and update your inventory anywhere—including stamp shows and auctions with no internet connection.
- Detailed Condition & Gum Tracking: Document gum status (OG, NH, hinged, no gum), centering, cancel type, and other grade factors for both mint and used material in a single structured record.
- Customizable Templates for Multiple Collections: Default templates cover stamps, coins, firearms, knives, and more. Field names and dropdown values can be added or removed to match any niche collecting specialty.
Use Cases
- Philatelists cataloging large stamp collections with Scott numbers, watermark variants, and perforation details for quick reference and duplicate avoidance.
- Collectors attending stamp bourses and auctions who need offline mobile access to verify what they own before making purchases.
- Estate planners and heirs documenting philatelic collections with condition grades and catalog values for insurance or probate purposes.
- Multi-collection hobbyists managing stamps, coins, and other collectibles in a single unified application without cloud exposure.
- Thematic and postal history collectors who require customizable fields to document covers, cancellations, and specialized philatelic material.
Pros
- Complete Privacy: Offline-first architecture means your collection inventory, values, and Scott numbers never leave your devices, protecting high-value philatelic data from cloud breaches.
- Purpose-Built for Philatelists: Specialist fields for watermarks, perforations, catalog numbers, and gum condition eliminate the retrofitting required with generic database or spreadsheet tools.
- Multi-Platform with Free Tier: Runs natively on five operating systems and mobile devices, with a no-credit-card 30-day trial and a permanently free version for casual collectors.
- Supports Multiple Collection Types: One subscription manages stamps, coins, firearms, and more, making it cost-effective for hobbyists with diverse collections.
Cons
- No Cloud Sync: The offline-only design means collectors who want automatic backup or seamless multi-device sync must manage their own file transfers.
- Niche Use Case: Highly specialized for collectors; not suitable as a general-purpose inventory or asset management tool for non-collecting contexts.
- Limited AI or Smart Features: The software does not offer AI-assisted valuation, image recognition for stamp identification, or automated catalog lookups.
Frequently Asked Questions
Is NM Collector free to use?
Yes. NM Collector offers a 30-day free trial with full feature access—no credit card required. After 30 days you can upgrade to a paid plan or continue using a free version with limited features.
Does it work without an internet connection?
Absolutely. All data is stored locally on your device. The app functions fully offline on Windows, Mac, Linux, iOS, and Android, making it ideal for use at stamp shows and auctions.
Which catalog numbering systems does NM Collector support?
The stamp template includes dedicated fields for both Scott catalog numbers and Stanley Gibbons numbers, along with fields for printing varieties and other catalog-specific details.
Can I manage collections other than stamps?
Yes. NM Collector provides templates for coins, firearms, knives, Japanese swords, geological specimens, and more—all manageable under the same application and account.
Can I customize the stamp template fields?
Yes. You can add, remove, or modify field names and dropdown values within any template to match your specific collecting focus, such as first day covers, postal history, or thematic sets.
