Amazon analytics · Seller Central · Ads · FBA · Keepa · every morning

Wake upknowing.

Every night The ASIN Ledger pulls your sales, ads, stock and Buy Box from Amazon, finds what moved and writes down why. In the morning the answer is waiting, before anyone asks.

Start free See the live demo
  • No card to sign up
  • The demo with your own brands
  • Read-only Amazon access
The Weekly Report for Oct 25 to 31: the whole account made $224,357, 13% less than the week before, with six one-line reasons and eight KPI tiles.
The same Weekly Report on a phone.

Before the Ledger

You know this feeling.

  1. Nine reports still to download before Monday. Again.

  2. “Why are sales down 13%?” Everyone looks at you. You don’t know yet.

  3. Your best seller ran out of stock eleven days ago. Nobody noticed.

  4. Ad money leaks into clicks that will never buy.

You didn’t build a brand to live in spreadsheets.

With the Ledger

Now picture next Monday.

06:58

The coffee is still hot.

Sales are down 13% this week, and you already know why: fewer organic visits and 346 top sellers out of stock. Ads spent 22% less and got more efficient.

By 07:06 you know what to fix first. Nobody had to ask.

That’s what calm feels like.

The Weekly Report on a phone: six one-line reasons for the week, then the KPI tiles.

Inside the Ledger

Four feelings you’ll have every week.

Real screens from a real Amazon account with 9,000+ ASINs. Only the brand names are changed.

Clarity

Every number arrives with its reason.

Sales down 13%? The Weekly Report splits the change into causes you can act on: fewer visits, weaker conversion, products that ran out, a Buy Box you lost. Every row adds up to the dollar.

−$34,676−$21,124 from fewer sessions, −$13,552 from lower conversion

Why sales moved and why sessions moved, each change in its own row with before, now and the dollar effect.
Why sales moved on a phone: each change in its own row with the dollar effect.

Control

See the empty shelf before it costs you.

Every ASIN, every morning: FBA, FBM, inbound, days of cover and Buy Box. The Ledger ranks what to restock by the revenue it brings back, and shows the stock that quietly ties up your cash.

$107k a weekwaiting in 404 top sellers that are out of stock

The Stock page: 40,001 units across FBA, FBM, reserved and inbound, a plan to grow revenue and free up cash, and the stock value by how fast it sells.
The stock plan on a phone: restock top sellers, win the Buy Box back, free up cash.

Confidence

Know which ad clicks pay. And which never will.

The PPC Optimizer checks every search term, target and placement against your own ROAS goal. It tells you what to negate, cut or raise, shows what that does to your ROAS, and writes the bulk file for you to upload.

$2,084of ad spend with zero sales, found in one look

The PPC Optimizer: ad spend, ad sales, ROAS against the goal, and action tiles to stop waste, fix and grow.
The PPC Optimizer on a phone.

Mastery

Any product’s whole story. One search.

Type an ASIN, SKU or model. Sales, sessions, ads, stock by day, price against conversion and every variation of the listing, back to the first day it sold.

1 pageper product, every number back to day one

An ASIN page: product image, rating, SKUs, MAP check and the week’s performance tiles.
An ASIN page on a phone.
Why sales moved and why sessions moved, each change in its own row with before, now and the dollar effect. Every dollar has a reason
The Stock page: totals, a plan to grow revenue and free up cash, and stock value by how fast it sells. Restock these first
The PPC Optimizer with KPI tiles and action tiles. Stop paying for clicks that never buy
An ASIN page with the product, its SKUs and its performance. Its whole story on one page

While you sleep

It works the night shift.

No downloads. No exports. No copy and paste. You do nothing, and that is the whole point.

Start free Your brands in the demo in minutes. No card.

  1. Pulls yesterday from Amazon

    Seller Central, Amazon Ads, FBA stock and Keepa, through official APIs, with read-only access.

  2. Checks it again

    Amazon publishes traffic up to two days late. The Ledger re-pulls the last days until every number is final.

  3. Your morning is ready

    On your laptop and on your phone, every change already explained.

  4. The week, explained

    Sales, sessions, stock, Buy Box and ads, with the one thing to fix first.

On your phone

Calm fits in your pocket.

The whole Ledger works on your phone. Read the report on the train, check an ASIN in a meeting, look at stock while you wait for a flight.

Week-over-week trends on a phone: sales, spend and traffic.
The Ledger overview on a phone: total sales, impressions, clicks, ad spend and more.
The Stock page on a phone: total units, FBA, FBM, reserved and inbound.

Real, not a mock-up

Built on $26 million of real Amazon sales.

The Ledger wasn’t designed in a pitch deck. It grew inside a live Amazon account with 9,000+ ASINs and three brands, one real Monday at a time.

$26.2Min sales reconciled to the cent since January 2025
9,432ASINs checked every single day
9 → 1Amazon reports become one page
0clicks to get your Monday report

I built the Ledger because I wanted to wake up, look at my phone and think: aha, I know what’s happening and what to fix. Now that’s every morning.

Tin RudnickiFounder, The ASIN Ledger

How it works

From sign-up to your first morning.

Click through the whole Ledger with your own brand names before you connect anything. Your 14 free days start only when your real numbers are in.

  1. 01Under a minute

    Sign up

    Continue with Google or your email. No password to remember.

    No card

  2. 02A few minutes

    Your brands in the demo

    Name your brands and categories. The demo Ledger opens with them, filled with made-up numbers. Click through all of it.

    No Amazon needed

  3. 03When you’re ready

    Start your 14-day trial

    Add a card. Nothing is charged for 14 days, and you can cancel anytime.

    $0 for 14 days

  4. 04The next morning

    Your real numbers

    Connect Seller Central and Amazon Ads, read-only. Your history comes in overnight, and your 14 days start the morning your Ledger is ready.

    Read-only

Want to look around first? See the live demo Three sample brands, no sign-up.

Pricing

Costs less than one bad ad day.

Every plan gets the Ledger and the Weekly Report. Bigger plans add the PPC Optimizer, exports and a spoken Monday briefing.

Starter

For a focused catalog

$149/month

Founding$104/month while you stay

Start free
  • Up to 20 ASINs · 2 seats
  • A page for every ASIN, with its full history
  • The Full Manifest: every product, every number
  • The Weekly Report: what moved and why
  • The Weekly Report in your inbox every Monday
  • Sales, ads, stock, Buy Box and BSR, every day
  • E-mail support

Most chosen

Growth

For brands scaling with ads

$349/month

Founding$244/month while you stay

Start free
  • Up to 500 ASINs · 5 seats
  • Everything in Starter
  • PPC Optimizer: bids, negatives and budgets
  • Bulk and reverse files for Amazon Ads
  • The Monthly Report
  • Any date range, compared with any other
  • Excel and CSV exports
  • Priority support

Premium

For big catalogs and teams

$799/month

Founding$559/month while you stay

Start free
  • Unlimited ASINs · Unlimited seats
  • Everything in Growth
  • A spoken briefing every Monday
  • Live sales through the day
  • Hands-on onboarding by the founder

Every plan includes

  • Daily pulls from Seller Central, Ads and Keepa
  • Up to two years of your history on day one
  • The Weekly Report every Monday
  • Your brands, categories and, if you use them, tiers
  • Buy Box, price and BSR for every ASIN
  • Desktop and phone
14 days free, on your real numbers Sign up and explore the demo with no card. The trial takes a card and charges nothing for 14 days, counted from the morning your real Ledger is ready.
30-day money-back guarantee Changed your mind? Your first payment back in full, no questions asked.
Founding offer · first 50 brands 30% off on any plan for as long as you stay, and the founder sets up your Ledger personally.

FAQ

Questions, answered.

Still unsure? Click through the live demo or write to hello@asinledger.com.

Can I try it before connecting Amazon?

Yes. Sign up, name your brands and categories, and the demo Ledger opens with your brand names and made-up numbers. Click through every page and every report, with no card and no Amazon connection. Rather not sign up yet? The live demo has three sample brands.

Do I need a card?

Not to sign up or to explore the demo. The 14-day free trial asks for a card through Stripe and charges nothing until the 14 days are over. Cancel before then and you pay nothing. Change your mind after your first payment and you have 30 days to get all of it back.

When does the free trial start?

The morning your real Ledger is ready, not the day you sign up or add your card. Time in the demo doesn’t count, so all 14 days are spent on your own numbers.

Is my Amazon data safe?

Yes. The Ledger connects through Amazon’s official Selling Partner and Amazon Ads APIs with read-only access. Your access tokens are stored encrypted (AES-256-GCM), buyers’ names and addresses are never stored, and you can disconnect in one click: the tokens are deleted at once and your data within 30 days. The security page has the details.

Can it change anything in my account?

No. The Ledger only reads. It never touches a price, a bid or a listing. When it suggests PPC changes, it writes a bulk file for you to review and upload yourself, plus a reverse file to undo it.

How long does setup take?

A few minutes to see your brands in the demo. Connecting Seller Central and Amazon Ads takes about ten more, and for founding brands the founder does the rest personally. Your history comes in overnight and your Ledger is ready the next morning.

Do I still need to download reports?

Never again. Everything comes through Amazon’s official APIs every day, including the days Amazon publishes late.

Is it only for big catalogs?

It was built on a catalog of 9,000+ ASINs and works the same for 50. A small catalog gets the same answers, just quicker to read.

Which marketplaces does it support?

Amazon US today. More marketplaces are on the roadmap.

Can my team use it?

Yes. Everyone on your plan sees the same numbers on desktop and phone, so Monday meetings start from the same page.

What do founding brands get?

The first 50 brands pay 30% less for as long as they stay, on any plan, monthly or yearly. The founder also sets up their Ledger personally.

What if I want to cancel?

Cancel anytime in one click, in Settings. No contracts and no calls. Cancel during the 14 free days and you pay nothing; cancel within 30 days of your first payment and you get all of it back.

Your first morning

Tomorrow morning can feel different.

Start free and see your own brands in the Ledger today. Connect Amazon when you’re ready.

Accounts open in the coming days. Join the founding list and you get the first ones, with 30% off for as long as you stay.

Continue with Google

or

  • No card needed
  • Your brands in the demo
  • Read-only Amazon access

Founding offer: the first 50 brands get 30% off for as long as they stay.

Not ready to sign up? See the live demo with three sample brands.

Live demo Start free