Forthcast · Inventory planning for Shopify

Know what to reorder. And when.

Turn your Shopify sales history into a clear replenishment plan. Forecast demand, review stockout risk, and build draft purchase orders — with the final decision always yours.

Start 14-day free trial See how it works
Install from the Shopify App Store 14-day trial · billed through Shopify $19.99/month · no SKU tiers
Shopify App Storeverified merchant reviews

Forthcast is demand forecasting and inventory planning software for Shopify. It produces store-wide forecasts and reorder points up to about 12 months ahead, ranks stockout risk, and creates draft purchase orders that you review before sending. It costs $19.99 per month flat, with no SKU tiers or per-SKU fees, and a 14-day trial billed through Shopify. Forecast coverage depends on sales history and active inventory; new products use separate seed forecasts.

Installs from the Shopify App Store
Forecasts eligible products
Ranks what to reorder
Forecasting starts after your order sync
Recognized by
Featured by Replit Race to Revenue — Cohort #1 Best eCommerce Inventory Forecasting App 2026 — Corporate Vision Logistics, Warehouse and Supply Chain Awards Available on the Shopify App Store Works with Judge.me

Forecasting stock for Shopify merchants in six countries

  • Nordic Dream
  • Finole
  • Genetic Labs Australia
  • Lashes By Design
  • ExcellentScents
  • First Stop Stationers
  • Shoppen Nørrebro
$19.99
Flat per month — no SKU tiers, no per-SKU fees
Up to 12 mo
Forecast horizon; report tables show six months
Eligible SKUs
Sales history and active inventory determine forecast eligibility
14 days
14-day trial billed through Shopify
How it works

From connected store to drafted POs in three steps

No spreadsheets, no manual demand math. Forthcast turns your Shopify history into ranked, ready-to-send replenishment.

STEP 01

Connect Shopify

Connect the Shopify store so Forthcast can read its sales history and begin modelling demand from the merchant's own data.

STEP 02

Forecast demand up to 12 months ahead

Forthcast models demand for eligible products with sales history and active inventory, up to about 12 months ahead. New products use separate seed forecasts.

STEP 03

Ranked reorders + auto-drafted POs

Review products below their reorder points, prioritize stockout risk, and create draft purchase orders. You review quantities and send.

Features

Everything you need to keep inventory in balance

Built for Shopify merchants who want clearer forecasting and merchant-controlled replenishment without a per-SKU bill.

AI demand forecasting

Eligible products are modelled from your own sales history, capturing seasonality, trend and velocity up to about 12 months ahead.

Draft purchase orders

Forthcast helps you draft POs with suggested quantities. You review and send — nothing is ordered without you.

Reorder-point alerts

Review products below their reorder points and use revenue-at-risk estimates to prioritize your next order.

Safety-stock optimization

Right-size buffers per SKU against demand variability and lead times — enough to avoid stockouts, not enough to tie up cash.

Multi-location stock views

See inventory by location, so reorder decisions reflect where stock actually sits. Demand forecasts and reorder points remain store-wide.

Seasonality & BFCM

Use seasonal demand patterns to review your replenishment plan ahead of Black Friday, Cyber Monday and other peaks.

Verified Shopify App Store review

Stands out for the reorder cycle

“We’ve tested several Shopify apps to improve our repeat purchase flow, but this one stands out because of how well the reorder cycle is actually implemented.”

Finole – Ägyptische Baumwol… · Germany · April 21, 2026
Verified Shopify App Store review

Great Stocky alternative

“So far so good! It looks like this app will do more than Shopify’s Stocky and will do it better. The support has been amazing. Very responsive and interested in what we need.”

Framebuilder Supply · United States · March 6, 2026
Pricing

One flat price. No SKU tiers.

Compare each tool’s billing terms alongside the forecasting workflow you need. Forthcast charges $19.99/month with no SKU tiers or per-SKU fees; check forecast coverage separately.

Illustrative usage-based plan
$$$ can rise as usage grows

A plan priced by SKU count, seats or usage can cost more as those increase. Check included allowances, the billing term and any add-ons before comparing quotes.

  • Check any per-SKU charges
  • Check usage tiers and overage charges
  • Compare the total quote at your expected usage
50 SKUs · $$ 500 SKUs · $$$ 5,000 SKUs · $$$$
Forthcast · one flat rate
$19.99 / month

One flat subscription price, with no SKU tiers or per-SKU fees. Forecast coverage depends on sales history and active inventory; new products use separate seed forecasts.

  • Flat $19.99/month with no SKU tiers
  • No per-SKU fees, no usage tiers
  • 14-day free trial · billed through Shopify
50 SKUs · $19.99 500 SKUs · $19.99 5,000 SKUs · $19.99
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Part of Forthsuite

One of five separate Forth products

Forthsuite is the umbrella brand, not an app. Each product is installed, priced and run on its own; Forthcast is the forecasting and replenishment one. Use it alone, or alongside the others when a workflow calls for it.

ForthrouteNo subscription

Returns management for Shopify with a branded portal, exchanges and merchant-issued refunds.
Forthmatch3PL performance

Track fulfilment speed, SLA history and provider responses for the 3PL you already use.
ForthclearFree to list

B2B marketplace for surplus, overstock and dead stock. Sellers pay only when an item sells.
ForthsourceSourcing

Supplier search and manual China supplier dossiers, so you vet a supplier on data before you wire money.
FAQ

Questions, answered

What is Forthcast and how does it manage Shopify inventory?
Forthcast is demand forecasting and inventory planning software for Shopify. It produces store-wide forecasts and reorder points up to about 12 months ahead, ranks stockout risk, and creates draft purchase orders that you review before sending. It costs $19.99 per month flat, with no SKU tiers or per-SKU fees, and a 14-day trial billed through Shopify. Forecast coverage depends on sales history and active inventory; new products use separate seed forecasts.
What inventory signals does Forthcast use?
Forthcast models eligible products from the merchant's Shopify sales history, seasonality, trend, and velocity. Forecast eligibility depends on sales history and active inventory; new products use separate seed forecasts. It also learns each supplier's actual lead time over time, and Judge.me reviews can be synced through the documented API-token integration.
How much does Forthcast cost?
$19.99 per month flat, with no SKU tiers or per-SKU fees, and a 14-day trial billed through Shopify. There is no free plan.
Does Forthcast place purchase orders automatically?
No. Forthcast calculates reorder timing and quantity and drafts a purchase order for the merchant to review and send; it does not place, send, or submit an order automatically.
Can I evaluate Forthcast as a Stocky replacement?
Yes, if your required workflow is store-wide demand forecasting, smart reorder alerts, safety-stock planning, and draft purchase orders. Check your exact Stocky workflow against Forthcast's documented features before migrating; this page does not claim feature-for-feature parity.
See all FAQs →

Stop guessing. Start forecasting.

Connect your Shopify store to review demand forecasts, rank reorders and draft purchase orders — flat $19.99/month, no SKU tiers or per-SKU fees.

Start 14-day free trial See how it works
$19.99 per month flat, no SKU tiers or per-SKU fees · 14-day trial billed through Shopify