BuyAhead: Inventory Forecast vs Granary: Inventory Forecasting

Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for BuyAhead, Oct 14, 2026 for Granary.

The short answer

  • Only Granary lists a free plan. Paid plans start at $19/month for BuyAhead and $29/month for Granary.
  • Granary lists 8 features BuyAhead’s listing doesn’t mention, including AI optimization, Back-in-stock alerts, Inventory sync.

Head to head

Open this comparison in ShoplistFree account. Every feature, store and change, side by side.
Pitch
—
—
Categories
  • Inventory optimization
  • Inventory optimization
Languages
  • English
  • English
Launched
Sep 18, 2026
Jul 20, 2026
Built for Shopify
Not badged
Not badged
Reviews per month
—
—
Detected stores
0active installs
0active installs
Most common store size
—
—
Top countries
—
—
Free options
Free planFree trial
Free planFree trial
Monthly range
From $19 to $49/month
From $0 to $199/month
Plans
Standard$19/month
14-day free trial
  • · CSV export for your supplier
  • · Days of stock left, updated daily
  • · Dead stock alerts with cash tied up
  • · Flat $19/month, no per-order fees
  • · Lead time and service level settings
  • · Multi-location inventory
Pro$49/month
14-day free trial
  • · Barcode stock counts, phone or scanner
  • · Everything in Standard, plus:
  • · Flat $49/month, no per-order fees
  • · Low-stock and reorder emails
  • · Purchase orders with suppliers
  • · Receive stock into a location
FreeFree
  • · Demand forecasts with tested accuracy
  • · Reorder dashboard with stockout dates
  • · Stocky CSV importer
  • · Supplier lead times and order quantities
  • · Up to 50 active SKUs
Starter$29/month
14-day free trial
  • · Demand forecasts with tested accuracy
  • · Reorder dashboard with stockout dates
  • · Stocky CSV importer
  • · Supplier lead times and order quantities
  • · Up to 500 active SKUs
Growth$59/month
14-day free trial
  • · Demand forecasts with tested accuracy
  • · Reorder dashboard with stockout dates
  • · Stocky CSV importer
  • · Supplier lead times and order quantities
  • · Up to 2,000 active SKUs
Pro$99/month
14-day free trial
  • · Demand forecasts with tested accuracy
  • · Reorder dashboard with stockout dates
  • · Stocky CSV importer
  • · Supplier lead times and order quantities
  • · Up to 10,000 active SKUs
Scale$199/month
14-day free trial
  • · Demand forecasts with tested accuracy
  • · Reorder dashboard with stockout dates
  • · Stocky CSV importer
  • · Supplier lead times and order quantities
  • · Unlimited active SKUs
Coverage
5 of 13 features38%
11 of 13 features85%
Unique strengths
  • Analytics
  • Import and export
  • AI optimization
  • Back-in-stock alerts
  • Inventory sync
  • Inventory tracking
  • +4 more
Inventory optimization
38%5/13
85%11/13
Inventory management
38%3/8
88%7/8
Notifications and analytics
40%2/5
80%4/5
238onlybothonly
BuyAheadGranary13 features listed across both App Store listings

Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.

See every feature
Works with also listed by another
—
—
How it sells itself

BuyAhead reads your sales, stock and locations, then works out how long each product will last, when to order it and how much to buy. Open a product to see the math behind every number. When stock arrives, receive it against the purchase order and BuyAhead updates Shopify for you.

Granary tells you what to reorder, how much, and when, then helps you place and receive the order. Each product gets a forecasting model matched to how it sells, tested on your own sales history so you see its accuracy before you rely on it. Your reorder plan is grouped by supplier with lead times, stockout dates and order quantities.

Key points
  • Days of stock left for every product, recalculated every day
  • Order dates and quantities, with a breakdown of how each was worked out
  • Set your lead time, target stock cover and service level in one screen
  • Read-only access: nothing in your store is changed, no customer data is read
  • See backtested forecast accuracy for every product before you rely on it
  • Forecasts fit each product's pattern, from steady sellers to rare bulk buys
  • Reorder suggestions grouped by supplier with lead times and days of cover
  • A 90 day stockout timeline shows which products need ordering first
Screenshots
Product page showing the full calculation behind the order
BuyAhead dashboard listing what to reorder todayProduct list with days of stock left and suggested order sizeDashboard showing what to order today and how many units
SKU Detail Analytics
Inventory DashboardSupplier Lead TimesStocky Importer

All the numbers

Every figure, side by side

A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.

Showing only the rows where the apps differ.

Adoption

MeasureBuyAheadGranary
Detected storesNot publishedNot published
Net store change, 28 days0estimated0estimated
Stores added, 28 daysNot enough dataNot enough data
Big-brand shareNot enough dataNot enough data
Top store categoriesNot publishedNot published
Top store countriesNot publishedNot published

Reviews

MeasureBuyAheadGranary
App Store ratingNot publishedNot published
App Store reviewsNot publishedNot published
New reviews, 28 daysNot enough dataNot enough data
Reviewers a year or more inNot enough dataNot enough data

Pricing

MeasureBuyAheadGranary
Free planNot listedYes
Lowest paid monthly plan$19/month(ahead)$29/month
Longest free trial14 days14 days
Plans listed25

Listing

MeasureBuyAheadGranary
Shopify category rank#676in Inventory optimization#360(ahead)in Inventory optimization
Shopify App ChartsNot on this week’s charts#17 on Pricing moves in Inventory optimization
Built for ShopifyNoNo
LaunchedSep 18, 2026Jul 20, 2026
Languages1English1English
DeveloperNorthlineGranary

FAQ

BuyAhead and Granary: common questions

Is BuyAhead or Granary cheaper?
Only Granary lists a free plan. Paid plans start at $19/month for BuyAhead and $29/month for Granary. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
What features does each app list that the other doesn’t?
BuyAhead lists 2 the others don’t mention, such as Analytics, Import and export. Granary lists 8 the others don’t mention, such as AI optimization, Back-in-stock alerts, Inventory sync, Inventory tracking. A feature missing from a listing may still be supported; this compares what each App Store listing says.
Where does this comparison’s data come from?
Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Oct 13, 2026 for BuyAhead, Oct 14, 2026 for Granary; estimated figures are labeled.

How Shoplist compares apps

Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Oct 13, 2026 for BuyAhead, Oct 14, 2026 for Granary. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.