01
Capture the object
Add an item with photographs, notes, condition, and the details you already know.
Your collection, understood
Know what you own. Track what it becomes.
Photograph and catalog your collectibles. Keep categories, item evidence, and estimated resale values together.
Begin free. Estimates are market research, not certified appraisals.
Catalog preview
Illustrative exampleItem photo
Vintage model locomotive
Photo placeholder · Fictional item
- Estimated resale value
- $80–$140 USD
- Example range only · Limited evidence
- Category / subtype
- Die-Cast, Models & Miniatures / Model Trains
- Notes / condition
- Good: light paint wear. Motor untested; original box missing.
Inspect identification evidence
Example evidence: side photograph and owner notes. Maker and model are unconfirmed.
Improve this estimate: add an underside photo showing markings and confirm whether the motor runs.
Market-research estimates, not certified appraisals. This example is not a customer record or a live valuation.
The founder promise
Built for the record, not the reveal.
01
Evidence over certainty
Estimates include context and confidence. When better evidence could matter, CollectionArc tells you exactly what to add.
02
Private workspaces
Catalog records are available to authorized members of their workspace; CollectionArc does not currently publish public item pages or QR share links.
03
History stays traceable
Item estimate history and recorded holding changes remain available, including when a record is closed or archived.
From object to intelligence
Identification starts the record. Structure makes it valuable.
CollectionArc turns item photos and notes into a structured catalog with current estimates, portfolio totals, and per-item history.
The durable portfolio
Review value, category allocation, custody, and item history in one place.
Estimated value
Current research-backed value by item and collection
Category allocation
What you own and where collection value is concentrated
Custody & location
Record a workspace storage location and whether an owned item is in or out of custody
Item history
Review estimates and record sale, gift, trade, transfer-out, or archive actions
02
Confirm the evidence
Use identification research and guided evidence refinement to improve an item record with useful details such as a maker’s mark or model number.
03
Build the portfolio
Classify items with CollectionArc’s category and subtype taxonomy, and record category-specific attributes.
04
Track what changes
Review current estimates and category allocation, inspect item value history, and let workspace owners or admins record dispositions or archive items without erasing their history.
One record
Preserve evidence as identification improves
Primary category
Keep portfolio allocation tied to each item’s main taxonomy category
Recorded changes
Keep closed and archived holdings in historical inventory
CollectionArc plans
Choose a plan for your collection.
Current app capabilities are shared across plans; subscription status controls workspace access.
Best for active collectors
CollectionArc Plus
For active collectors who organize holdings and review item history.
$9.99/ month
- Catalog items with photographs and governed taxonomy
- Identification research and guided evidence refinement
- Current estimates and portfolio totals by category
- Per-item estimate and evidence history
- Workspace roles, storage locations, and custody state
- USD acquisition cost, disposition records, and archive/restore
CollectionArc Pro
For collectors managing holdings and collaborating in a workspace.
$29.99/ month
- Catalog items with photographs and governed taxonomy
- Identification research and guided evidence refinement
- Current estimates and portfolio totals by category
- Per-item estimate and evidence history
- Workspace roles, storage locations, and custody state
- USD acquisition cost, disposition records, and archive/restore
CollectionArc Core
For collectors building a structured catalog of the objects they own.
$0.00/ month
- Catalog items with photographs and governed taxonomy
- Identification research and guided evidence refinement
- Current estimates and portfolio totals by category
- Per-item estimate and evidence history
- Workspace roles, storage locations, and custody state
- USD acquisition cost, disposition records, and archive/restore
Disposition entries record an owner assertion. CollectionArc does not calculate proceeds, gains or losses, insurance values, or ownership expenses.
Questions before you catalog
Clear boundaries. Better records.
Start the arc
Your collection deserves more than a spreadsheet.
Create a durable record of what you own, what it may be worth, where it lives, and how it changes.