Coming soon · iPhone + Android

Know what you brought. Record every deal. Know what you made.

The inventory and Show Ledger that keeps working without venue Wi-Fi. It is built for the individual vendor behind the table. Prepare your cards, capture every kind of deal, and finish the event with a trustworthy closeout.

Explore the Show workflow Get notified at launch

No marketplace required. No Jerbventory transaction fee.

How the Show Ledger works

SHOW WORKSPACEEverything connected to one event.

01BroughtExact Inventory

02DealsEvery activity

03ResultTrusted closeout

INVENTORYExact Show list

ACTIVITYEvery deal type

REVIEWProblems visible

CLOSEOUTHistory locked

WORKS OFFLINECAN BE CHECKEDINVENTORY COUNTED

The problem

A busy show should not end in a pile of notes and a guessed profit number.

Spreadsheets can hold inventory. Notes can remember a few deals. Neither is built to follow a card from the case, through a bundle or trade, into the final show result. Jerbventory connects those steps without requiring a connection at the table.

One Show · Five connected stages

Follow one ledger from Draft to a closeout you can trust.

Jerbventory follows the full day behind the table. Every stage adds to the same Show record, so you do not have to rebuild the final numbers from scattered tools.

SHOW LEDGER EXAMPLE01 / 05

Prepare · DraftPrepare

IN PROGRESS

01Cards + quantitiesSelected

02Show quantitiesPlanned

03Case + box locationsAssigned

ON DEVICECAN BE CHECKEDONE SHOW

01Prepare

Prepare · Draft

Start with an exact list of what you are bringing.

Create a Draft, choose the cards and quantities going to the Show, add their locations, and start only when you are ready.

See what this stage records

Choose the exact cards and quantities going to this Show.
Set quantities, asking prices, and table locations.
Keep the Show editable until it is ready to start.

01Prepare

01Cards + quantitiesSelected

02Show quantitiesPlanned

03Case + box locationsAssigned

02Run the table

Show Mode

The ledger that stays with the table.

Show Mode keeps the active event, the cards you brought, quick actions, unfinished work, and past activity together in one place.

See what this stage records

Sell at the planned Show price or enter a different price with a review step.
Record sales, bundles, trades, purchases, fees, and event expenses.
Keep cash, digital payments, and processing fees with the correct deal.
Undo a mistake without deleting the original record or changing Inventory twice.
Keep Draft and Needs Review work out of final Show totals.

02Run the table

01Single saleRecorded

02Bundle or tradeConnected

03Purchase, fee, expenseRecorded

03Resolve

Snap Deal · Needs Review

When the table gets busy, save the moment—not a bad guess.

Create a Quick Capture as a sale, purchase, trade, or unknown activity. Add a private on-device photo as a memory aid, then resolve the details when traffic slows down.

See what this stage records

Preserve rushed activity without forcing incomplete details.
Exclude unresolved work from finalized results.
Confirm the cards, money, and payment method later.

A memory aid, not a scanner. Jerbventory removes hidden photo details such as location and device information. It does not upload, recognize, price, or match the photo.

03Resolve

01Moment capturedSaved

02Held for reviewNot final

03Resolved into ledgerConfirmed

04Reconcile

Reconcile

Check the differences, not the whole Show.

Compare what Jerbventory expects to remain with what is physically on the table, then review only the differences before closeout.

See what this stage records

Use recorded activity to calculate what should remain.
Check physical Inventory against the Show Ledger.
Keep unresolved differences visible until they are handled.

04Reconcile

01Expected quantitiesCompared

02Physical quantitiesCounted

03DifferencesReview only

05Close out

Confidence Closeout

Close the Show with evidence, not optimism.

Jerbventory will not close the Show while unfinished activity remains. It separates payment methods, points out sales missing a recorded card cost, and saves a final result that cannot be quietly edited later.

See what this stage records

See total sales before fees, fees, expenses, and profit on cards with a recorded cost.
Review payment methods, recorded card costs, and cash movement.
Keep remaining Inventory in a final summary that cannot be edited.

If a completed sale must be undone later, Jerbventory restores the Inventory and keeps a record of the change instead of rewriting the original closeout.

05Close out

01Sales · fees · expensesAccounted

02Recorded costs · card profitClear

03Payments · cash movementChecked

04Remaining InventoryPreserved

05Final Show recordLocked

Reusable Shows

Your next show should not start from zero.

Reuse a completed or cancelled Show once, or save a template for an event you attend regularly. The new Draft uses today’s Inventory quantities and asking prices. Sales, expenses, and final results from the earlier Show stay unchanged.

Jerbventory tells you what was copied, reduced to the available quantity, or skipped.

History-safe reuse

COMPLETED SHOWHistory lockedSales · expenses · closeout

NEW DRAFTCurrent InventoryIndependent · editable · ready

OR START FROM A SAVED TEMPLATE

Inventory + Collection

Two vaults. One hard boundary.

Jerbventory keeps cards you sell separate from cards you are keeping, so personal cards never change your Show totals or profit.

CARDS KEPT SEPARATE

Every card has a clear purpose.

01FOR SALE

Inventory

What you actively sell and account for.

VENDOR VAULTSellableSHOW LEDGEREligible

Purchase groups
Quantity + locations
Cost per card
Asking price
Stored market value
Cards with prices

Can be added to the exact Inventory list for a Show.

HARD
BOUNDARYNO ACCIDENTAL
CROSSOVER

02KEEPING

Collection

What you own without planning to sell at Shows.

PERSONAL VAULTPersonalSHOW LEDGERExcluded

Owned cards
Personal sets
Browse + organize
Personal value

Never counts toward Show Inventory, sales, or profit.

Workflows support Pokémon, Digimon, Magic: The Gathering, One Piece, Basketball, Baseball, Football, and Soccer. Automatic card details and prices are not available for every category yet. Pokémon and Digimon currently support automatic price updates. Prices for other categories are entered by you or imported from your files. Jerbventory never makes up a price.

CSV + XLSX Import

Start with the records you already have.

Bring CSV or Excel (.xlsx) spreadsheets into Inventory, Collection, or both, including workbooks with more than one sheet. Jerbventory matches common columns, shows every planned change, catches duplicates, prevents the same file from being imported twice, and gives you a report of rows that need to be fixed.

Nothing is written until you confirm the preview.

CSV / XLSXReview before anything is saved

01
PreviewMatch spreadsheet columns and choose where the records belong.
02
ValidateSeparate valid, review, rejected, and duplicate rows.
03
CorrectExport rejected rows and re-import them safely.
04
ConfirmWrite accepted rows only when you approve.

Works offline + stays on your device

Designed to keep working when the venue Wi-Fi does not.

Your cards and Shows are stored on your phone, so the main workflow keeps working offline. Jerbventory checks a backup before using it to replace your current data.

Stored on your phone

Your Inventory and Show records remain available when the internet is not.

Backups are checked

Jerbventory checks a backup before it changes anything on your phone.

Built for each platform

Android can keep several recent backup copies in a folder you choose. iOS keeps local recovery points and lets you export a backup to Files or a cloud folder.

Data stored on your phone can still be lost.Keep a backup somewhere other than the phone.

Product roadmap

The first release is the foundation—not the finish line.

The first release focuses on a Show Ledger you can trust. From there, Jerbventory can add more useful tools for vendors and the card community without putting Inventory, money, or past Show records at risk. No delivery dates are promised yet.

CORE PRODUCT FOUNDATIONThe workflow being built first

Prepare, run, and close a Show with an exact Inventory list
Sales, bundles, trades, purchases + expenses
Unfinished deals, end-of-Show counts + a locked final result
Spreadsheet import, on-device use, backup + reusable Shows
Print Inventory price labels + scan a Jerbventory label on-device—not card recognition

Making the core smoother01

Improving now

Faster Show Mode

Fewer steps for single sales, bundles, trades, purchases, and expenses
Faster card search when choosing Show Inventory
Easier recording of cash, digital payments, and processing fees
Clearer unfinished-deal and end-of-Show check status

Smoother Inventory setup

Faster forms and tools for updating several Inventory records at once
Clearer spreadsheet column matching and import corrections
Better case, box, and Show-location preparation
Easier review of asking prices and what each card cost before a Show

Stronger on-device protection

Clear backup status and reminders to save a copy away from the phone
Step-by-step backup checks and restore
Better support for large text, screen readers, interruptions, and low storage
Clear recovery guidance when a backup needs attention

Next outcomes02

Up next

Learn across Shows

Compare total sales, fees, expenses, calculated profit, and Inventory changes
Compare venues with a clear note when some records are missing
See which cards repeatedly come home unsold
Export clear Show reports for the vendor’s own records

Faster ways to add cards

Batch add and edit tools
Verified adapters for common platform spreadsheet exports
Confirmation-required card matching assistance, separate from Jerbventory label scanning
A review list when a card’s exact version or parallel is unclear

Make repeat Shows easier

Smarter template and reuse suggestions
Preparation recommendations from the vendor’s own prior Shows
See which cards, cases, boxes, or locations still need attention
Reusable event and expense defaults

Longer horizon03

Later

Cloud backup + more than one device

Optional cloud backup and multi-device sync
Preview a backup before it replaces on-device data
If two devices change the same record, choose what to keep
More Inventory export and Show report formats

More cards + better price support

Broader sports and TCG catalogs
Price support for more card types
Better handling for versions, parallels, grades, and condition
Manual entry whenever an automatic tool is not reliable

Selected marketplace connections

Import completed orders or Inventory files from selected marketplaces
Avoid counting a sale twice and keep the correct card cost
Update listings only after imports and Show totals are reliable

Exploring04

Discovery

More ways to run a vendor business

Optional access for trusted Show helpers
Track cards owned by different people and calculate what each person is owed
Keep selected marketplace listings up to date
More detailed exports for tax and accounting work

Community Show discovery

Find participating Jerbventory vendors at a specific Show
View a live, vendor-controlled window into Inventory available at that Show
Show when a vendor’s public Inventory was last updated and whether a card may still be available
Keep discovery browse-only—without checkout, reservations, or payment processing

Making the core smoother01

Improving now

Faster Show Mode

Fewer steps for single sales, bundles, trades, purchases, and expenses
Faster card search when choosing Show Inventory
Easier recording of cash, digital payments, and processing fees
Clearer unfinished-deal and end-of-Show check status

Smoother Inventory setup

Faster forms and tools for updating several Inventory records at once
Clearer spreadsheet column matching and import corrections
Better case, box, and Show-location preparation
Easier review of asking prices and what each card cost before a Show

Stronger on-device protection

Clear backup status and reminders to save a copy away from the phone
Step-by-step backup checks and restore
Better support for large text, screen readers, interruptions, and low storage
Clear recovery guidance when a backup needs attention

Next outcomes02

Up next

Learn across Shows

Compare total sales, fees, expenses, calculated profit, and Inventory changes
Compare venues with a clear note when some records are missing
See which cards repeatedly come home unsold
Export clear Show reports for the vendor’s own records

Faster ways to add cards

Batch add and edit tools
Verified adapters for common platform spreadsheet exports
Confirmation-required card matching assistance, separate from Jerbventory label scanning
A review list when a card’s exact version or parallel is unclear

Make repeat Shows easier

Smarter template and reuse suggestions
Preparation recommendations from the vendor’s own prior Shows
See which cards, cases, boxes, or locations still need attention
Reusable event and expense defaults

Longer horizon03

Later

Cloud backup + more than one device

Optional cloud backup and multi-device sync
Preview a backup before it replaces on-device data
If two devices change the same record, choose what to keep
More Inventory export and Show report formats

More cards + better price support

Broader sports and TCG catalogs
Price support for more card types
Better handling for versions, parallels, grades, and condition
Manual entry whenever an automatic tool is not reliable

Selected marketplace connections

Import completed orders or Inventory files from selected marketplaces
Avoid counting a sale twice and keep the correct card cost
Update listings only after imports and Show totals are reliable

Exploring04

Discovery

More ways to run a vendor business

Optional access for trusted Show helpers
Track cards owned by different people and calculate what each person is owed
Keep selected marketplace listings up to date
More detailed exports for tax and accounting work

Community Show discovery

Find participating Jerbventory vendors at a specific Show
View a live, vendor-controlled window into Inventory available at that Show
Show when a vendor’s public Inventory was last updated and whether a card may still be available
Keep discovery browse-only—without checkout, reservations, or payment processing

These are planned directions, not promised delivery dates. Card details, images, prices, and connections to other services will be added only when each feature is ready.

Proposed pricing

Pricing is still being shaped.

Billing is not active. These ideas are proposed—not launch commitments—and will be tested before Jerbventory becomes publicly available.

Get notified at launch

PROPOSED

Personal

Free

Useful Collection and light Inventory, with a limited first Show.

FOUNDER TARGET · PROPOSED

Vendor

$5.99/month

or $49.99/year

Complete Show setup, every deal type, import, backup, restore, and past Shows.

LATER

Vendor Pro

TBD

Deeper comparisons between Shows, more imports and reports, and tools for larger Inventory.

Honest boundaries

What Jerbventory is not.

A payment terminal

A card marketplace

A formal tax system

An AI card grader

A scanner-first app

A storefront or shop POS

Jerbventory does not process payments, list cards for sale, provide formal tax accounting, grade cards with AI, or guarantee the accuracy of information a user enters. It currently works for one person on one device, without cloud sync, team accounts, or storefront tools.

Questions

What vendors ask before signing up.

Does Jerbventory work without Wi-Fi?

Yes. Your cards and Shows are stored on your phone, so the main workflow keeps working when the venue connection does not. Some catalog artwork and automatic price updates need a connection, but recording deals and closing out a Show do not.

Does Jerbventory take payments or charge a transaction fee?

No. Jerbventory is a ledger, not a payment terminal. You run the sale however you already do — cash, your own card reader, or a payment app — and Jerbventory records it. There is no Jerbventory per-transaction fee.

What will Jerbventory cost?

Pricing is still being shaped and billing is not active. The proposed plans are a free Personal tier for collectors and a Vendor tier at $5.99 per month or $49.99 per year. These are proposals, not launch commitments.

Which cards does Jerbventory support?

Workflows support Pokémon, Digimon, Magic: The Gathering, One Piece, Basketball, Baseball, Football, and Soccer. Automatic card details and prices are not available for every category yet — Pokémon and Digimon currently support automatic price updates, and prices for other categories are entered by you or imported from your files. Jerbventory never makes up a price.

Is it available for iPhone and Android?

Both are being built. Jerbventory is designed for one person on one device, and it currently has no cloud sync, team accounts, or storefront tools.

Can I bring in the inventory I already have?

Yes. You can import CSV or Excel (.xlsx) spreadsheets, including workbooks with more than one sheet. Jerbventory matches common columns, shows every planned change, catches duplicates, and reports rows that need fixing. Nothing is written until you confirm the preview.

When does Jerbventory launch?

There is no public build and no announced date yet. The app is in internal testing. Join the launch list and you will get one email when it is available to download.

PRODUCT IN DEVELOPMENT

Coming soon

Be told the day it is ready.

Jerbventory is being shaped around the complete workflow of the individual vendor—from the first card packed to the final numbers after remaining Inventory is checked. Leave your email and you will hear once, when there is something to download.

01 iPhone or Android

02 Individual vendors + serious collectors who sell

03 Works offline, can be checked + built for real Show conditions