FOR SUBSCRIPTION BOX MAKERS

A better box.
Down to the
last detail.

Build your next snack lineup with live cost-per-box and honest allergen flags. Less retyping. More knowing what goes in.

Build a box

No sign-up to buildRecomputed on every change

A LITTLE PREVIEW OF YOUR NEXT CYCLE ↗

NOVEMBER / 08 ITEMS

The afternoon edit

Original Oreo

Fruit & Seed Oatcakes

original made with sea salt

Tortilla Pops Finement Salé

COST PER BOX$10.92

of $12.00 target$1.08 left

91% of target500 boxes · $5,460.00 run cost

One label to look at.

Fruit & Seed Oatcakes · tree nut traces

NUT-FREE

4 of 8 products shown · actual database records, example costs

Cost it honestly Catch the promise conflicts Hand off one clean specBuilt for small teams, not spreadsheets.

01 / YOUR WORKBENCH

Build left. See it add up right.

LOADING DRAFTFREE

01 The lineup

Box nameCycle

Target itemsCOGS target ($)Boxes in run

Packaging & prep per box, beyond product costs

The promise

Choose what this tier stands for

Nut-free flags both tree nuts and peanuts, including traces. Unknown data is never a pass.

Add a little good stuff

OPEN FOOD FACTS ↗

In this box 0

0 / 8 target items

A good box starts with one good find.Search above or bring your own label.

Last cycle Repeats are flagged, not silently removed

Matches exact product names, brand + product, or barcodes. Pro fills this from your latest saved cycle.

02 Your box, live

ALWAYS ADDING UP

November / CLASSIC

My snack box

0 products · 0 units per box

Add your first item, or

declared trace unknownN · P · W · M · S · Se

COST PER BOX$0.00

of $12.00 target$12.00 left

0% of target500 boxes · $0.00 run cost

↳

Your shelf is ready when you are.

A flag is a prompt to check the label, not a verdict on the product.

The allergen matrix

9 major US allergens

Every product gets a row. Every missing field stays Unknown.

*Wheat also flags OFF gluten/cereal tags conservatively; this is not proof of wheat. Shellfish column covers crustacean tags. Matrix uses only declared and trace tags; it does not analyze ingredient text.

Always verify allergens and traces against the physical package before printing. Database entries can be incomplete or wrong.

Contains: Unknown, no products yet.

May contain / traces: Unknown.

0last-cycle repeats

0NOVA 4 products

0additives (sum / SKU)

0thin labels

Additive totals count per product record, not unique additives or dosage. Unreported NOVA values are not counted as NOVA 4.

From shelf to shipping table.

I verified each physical package and reviewed all exceptions. This is my box promise, not FDA label-compliance advice.

Print unlocks with priced, complete labels, a positive target and run count, no unaccepted promise flags, an on-target box, and package verification. Accepted exceptions remain on the sheet.

02 / A SMALLER ROUTINE

From a barcode to a box spec.

One workspace. The numbers follow every change you make.

Find your products.

Paste a barcode, search a name, or bring the label from your favorite small maker.

Set your target.

Enter landed costs and quantities. See what the whole run costs, not just one box.

Keep your promise.

Toggle your tier. Review declared allergens, traces, and the unknowns before a swap.

Make the handoff.

Verify the packages, then print one spec for your team. Pro adds inserts and a 3PL CSV.

03 / THE ACTUAL TAKEAWAY

A sheet you can hand to a human.

Eight real product records. $10.92 per box. One nut-free conflict to resolve.
The same component below becomes your print-ready spec, no mystery mockup.

BOX MATH / WORKED EXAMPLE

The afternoon edit

November · Classic tier · 500 boxes

$10.92per box / $12.00 target

UNVERIFIED DRAFT, verify physical packages and resolve flags before packing or shipping.

Operator promises: Nut-free · $1.08 under target

Brand / product	Barcode	Unit	Qty	Total	Allergens / traces
CadburyOriginal Oreo	7622202225512	$1.05	1	$1.05	gluten, soybeans, sulphur dioxide and sulphitesTraces: gluten
Nairn'sFruit & Seed Oatcakes	0612322000202	$1.45	1	$1.45	glutenTraces: gluten, milk, nutsNut-free conflict, unresolved
Triscuitoriginal made with sea salt	0044000050986	$1.20	1	$1.20	glutenTraces: None listed
Peter's YardPeter's Yard Original Sourdough Crackers	5060198820052	$1.65	1	$1.65	gluten, milk, wholewheatTraces: None listed
Nature's BakeryFig Bar Blueberry	0047495112900	$1.40	1	$1.40	glutenTraces: None listed
BelvitaCrunchy Breakfast Biscuits	0044000031930	$1.10	1	$1.10	gluten, soybeansTraces: None listed
Parle, Parle platinaHide & Seek	8901719117183	$1.35	1	$1.35	gluten, soybeansTraces: gluten, soybeans
N.A ! NATURE ADDICTSTortilla Pops Finement Salé	3609200010726	$1.72	1	$1.72	None listedTraces: milk, soybeans

Packaging & prep: $0.00 / boxRun total: $5,460.00

Always verify allergens and traces against the physical package before printing. Database entries can be incomplete or wrong.

Contains: gluten, soybeans, sulphur dioxide and sulphites, milk, wholewheat.

May contain / traces: gluten, milk, nuts, soybeans.

Open Food Facts snapshot: September 16, 2026. Sample unit costs are illustrative, not quotes. This example is not cleared for a nut-free tier.

04 / FAIR QUESTIONS

Good questions.
Straight answers.

Especially when a box comes with a promise.

What if my brands are not in the database?+

That is normal, especially for artisan products. Use Add it by hand. Transcribe the ingredients, check the declared and trace statements separately, and enter your own cost. Unchecked statements stay Unknown. Manual entries are marked on the printed spec.

Is this FDA label compliance?+

No. This is an operator planning tool, not legal, medical, dietary, or FDA label-compliance advice. It checks the promises you select against recorded fields. Review packages, suppliers, and your own requirements before shipping. An accepted exception is never a safety clearance.

Where does the allergen data come from, and can it be wrong?+

Open Food Facts is a crowdsourced database. Entries can be incomplete, outdated, or incorrect; recipes vary by market and package. Full label means an ingredient list and both tag fields exist, not that they are accurate. Missing allergens_tags or traces_tags stays Unknown. Always check the physical package.

What happens to my cost data?+

The free draft lives in this browser’s localStorage, not a private cloud backup. Pro cycles are stored in your account when you save and can be deleted here. Search sends your query to Open Food Facts. Swap requests pass through our server, but Claude receives only product fields, not your entered costs. Product images load from Open Food Facts. Never use a shared browser for confidential drafts without clearing them.

Can I plan two tiers at once?+

Yes, on Pro. Classic + nut-free view copies your current lineup into a second editable tier. Select either preview to change its products, target, or promises independently. Both costs and shelf flags remain side by side. Each tier gets its own spec, insert, and CSV.

What is included in Free?+

One local draft with up to five products, live math, the full matrix, pasted repeat checks, one successful swap comparison per session, and a printable spec. A refusal for missing ingredients does not use the comparison. The eight-item sample is read-only on Free.

Product data and images: Open Food Facts contributors ↗ · ODbL database license. Product photos remain subject to their source licenses.

05 / ROOM TO GROW

Your next cycle,
a little more together.

Start with one box. Add the handoff tools when you need them.

Food boxes have little room for drift: SubscriptionBoxCalculator lists 15-25% net margins in its 2026 benchmarks ↗. A benchmark, not a forecast for your business.

Subscription billing and lineup planning are different jobs. The historical CMS Critic comparison of Cratejoy and Subbly ↗ discusses storefronts and billing; it does not establish that Subbly currently lacks curation tools. Box Math focuses on the label-and-cost planning step.

BOX MATH PROONE SIMPLE PLAN

$29/ month

For the whole lineup, and everything that follows.

Unlimited products in your box
Saved cycle history + automatic repeat checks
Unlimited, honest A vs B comparisons
CSV pick lists for your 3PL
Field-based AI insert card copy
Classic + nut-free tiers, side by side

Billed monthly through Stripe. Free stays free.
Not yet? Build your first 5-item box →

LIVE COST / BOX$0.00 / $12.00

Back to your box ↑

BOX MATH / BOX SPEC SHEET

My snack box

November · Classic tier · 500 boxes

$0.00per box / $12.00 target

UNVERIFIED DRAFT, verify physical packages and resolve flags before packing or shipping.

Operator promises: No dietary promise selected · $12.00 under target

Brand / product	Barcode	Unit	Qty	Total	Allergens / traces

Packaging & prep: $0.00 / boxRun total: $0.00

Always verify allergens and traces against the physical package before printing. Database entries can be incomplete or wrong.

Contains: Unknown, no products yet.

May contain / traces: Unknown.

A better box.Down to thelast detail.

The afternoon edit

Build left. See it add up right.

01 The lineup

The promise

Add a little good stuff

In this box 0

02 Your box, live

My snack box

The allergen matrix

From shelf to shipping table.

From a barcode to a box spec.

Find your products.

Set your target.

Keep your promise.

Make the handoff.

A sheet you can hand to a human.

Good questions.Straight answers.

Your next cycle,a little more together.

A better box.
Down to the
last detail.

Good questions.
Straight answers.

Your next cycle,
a little more together.