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Tightly: Inventory Planning

Forecast demand and plan the buy on one connected model

by Tightly · Launched: December 2024 · Free plan available.

4.4 (5) on Shopify
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The AI planning platform for retail and DTC brands on Shopify. Forecast demand, plan the buy and replenish on one connected model. Book a demo.

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About Tightly: Inventory Planning

Tightly is the AI planning platform for scaling retail brands. It forecasts demand by SKU, channel and location and reconciles it with your top-down merchandise plan, so finance, buying and ops run on one number. It sets open-to-buy, allocates and replenishes to demand, and times markdowns to clear stock without deep cuts. AI agents watch for drift and stage the moves inside your limits. Runs on your ERP, EDI, POS, WMS and accounting — nothing to rip out. Guided, not self-serve: book a demo.

Last verified: August 16, 2026 · Fresh

App details

Developer
Tightly
Pricing
Free plan available
Launched
December 2024
Rating
4.4 (5) on Shopify

Key features

  • The AI planning platform for retail and DTC brands on Shopify
  • Forecast demand, plan the buy and replenish on one connected model
  • Book a demo
Integrations with:

3PL Cin 7 ERP NetSuite PIM WMS

1 plan · starts free · 14-day free trial

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Free

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 99 Shopify App Store reviews

Use the arrows to read individual reviews

Tightly makes supplier communication part of the workflow. Email, lead time, and pricing connect directly to the PO-no manual chasing.
— My Store
Inventory finally matches reality. Tightly syncs everything back to Shopify without cleanup, so stock accuracy is never in doubt.
— Moderno Top Shop
Receiving no longer slows us down. Variances are flagged clearly, inventory syncs automatically, and we stay focused on selling.
— UNFKWTBL COMPANY INC
Tightly keeps purchase orders connected end-to-end. From supplier email to receiving variance, everything is visible, synced, and accurate. We work with confidence.
— Zipzi1
Our planning got sharper. With POs tied to costs and timelines, Tightly shows us where to adjust before issues spread.
— salesprintart
We no longer second-guess our numbers. Tightly makes purchase orders transparent and dependable from start to finish.
— Runvibe
With Tightly, receiving is crystal clear, POs are accurate, and our stock always matches Shopify. The time we save goes straight back into growth.
— ZaroonBeauty
Tightly connects supplier communication, order details, and receiving in one flow. Accuracy and confidence are finally standard
— luxury gem collection
Tightly connects supplier communication, order details, and receiving in one flow. Accuracy and confidence are finally standard.
— Lumine Silatica
Tightly eliminates the busywork. Supplier communication, costs, and inventory sync automatically, which means cleaner data, quicker cycles, and a smarter workflow.
— art.candle
No more patching data between systems. Tightly ties suppliers, costs, and inventory directly to Shopify, so we close POs faster and with fewer errors.
— Glow Mystic in Style
Tightly keeps purchase orders connected end-to-end. From supplier email to receiving variance, everything is visible, synced, and accurate. We work with confidence.
— TwoFurs
With Tightly, receiving is crystal clear, POs are accurate, and our stock always matches Shopify. The time we save goes straight back into growth.
— Custom Candle Co
With Tightly, supplier costs and lead times flow straight into every PO. Inventory updates to Shopify automatically no delays, no cleanup, just smooth operations.
— Vandalee
Forecasts are transparent and defensible. The 'why' is right there, so alignment with finance is instant. We tune policies and see DOH, cash, and margin shift in real time.
— Fatty Orange
Toby and the team at Tightly have been amazing in getting the app configured for us whilst taking our feedback onboard on ways to improve the app over recent months. The app has so many amazing features, some that we've not had the capacity to fully utilise yet due to the complexities of our procurement across multiple brands, but at it's core it's days of cover feature is ensuring we're stocked...
— Face the Future
In stock capture demand we'd have missed and sets honest delivery dates. Caps keep backorders realistic; promises get kept. Revenue up, support tickets down.
— Bagy-Packs
Planning used to be reactive. With Tightly, alerts flag risk early, budgets shape buys, and the app learns our seasonality so we stock the right units without drowning shelves,
— Otmos
works well even with our weird lead times and suppliers
— Dum Dum Uk
This is the first inventory platform we’ve used that actually helps us move faster instead of just telling us what’s wrong. We now use it everyday.
— Nauradika11

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