Comparison
Inventory Planner vs Sumtracker: the better option for reorder planning
Inventory Planner and Sumtracker side by side with real Shopify App Store prices, and why SteadyShelf is our pick for most stores at $29/month flat.
Our pick for most small and mid-size stores
SteadyShelf
If your main job is keeping products in stock without over-buying, SteadyShelf gives every product an order-by date and quantity from your Shopify sales and each supplier's lead time, drafts the purchase order, and receives the stock. $29/month flat, 30-day free trial, and the price doesn't rise as your sales grow.
Inventory Planner and Sumtracker are both established Shopify inventory apps built for different needs. Here's how all three line up.
SteadyShelf vs Inventory Planner vs Sumtracker at a glance
| SteadyShelf | Inventory Planner | Sumtracker | |
|---|---|---|---|
| Price | $29/month flat | Quote-based, billed outside Shopify | Forecasting + POs from $119/mo |
| Free trial | 30 days | Ask Sage | 14 days |
| Price grows as you grow? | No | Quote-based | By order volume |
| App Store rating | New | 4.3 (154 reviews) | 4.8 (127 reviews) |
| Best for | Small and mid-size stores that want order-by dates and POs without per-sales pricing | Larger multi-channel retailers that want deep financial reporting, SKU-level profitability and a sales-assisted setup. | Stores selling on several channels (Etsy, eBay, Amazon, Walmart) that need real-time stock sync and bundles, plus replenishment. |
Competitor prices, ratings and review counts are from each app's Shopify App Store listing, checked October 24, 2026. Prices change, so confirm on the listing before you buy.
Why SteadyShelf is our pick
- Forecasts from your real Shopify sales, per variant, with seasonality
- Order-by date for every SKU based on each supplier's lead time
- Suggested quantities rounded to case packs, with the math shown
- Draft purchase orders you approve, emailed to the supplier
- Receive stock (including partial shipments) straight into Shopify inventory
- Weekly reorder email and supplier import from any spreadsheet
Every suggestion shows its math (sales per day, days left, lead time, quantity), so you can check it instead of trusting a black box. One flat price, whether you do $50K or $5M a year.
SteadyShelf is launching on the Shopify App Store. Join early access to get the install link first.
Inventory Planner pricing
Quote-based. The listing says pricing adapts to your business and to contact them for a quote, and that charges may be billed by Sage outside your Shopify invoice.
Sumtracker pricing
Manage $59/month (multichannel inventory sync, bundles, stocktakes; up to 2,500 orders/year). Replenish $119/month adds purchase orders, transfers, forecasting and reorder suggestions. Higher order volumes and Enterprise priced on their website.
When to consider Inventory Planner instead
If you sell across many channels and warehouses and want enterprise reporting with a dedicated rollout.
When to consider Sumtracker instead
If you sell across several marketplaces and need inventory synced between them. SteadyShelf plans reorders for your Shopify store; it doesn't sync stock across channels.
More: Inventory Planner alternative · Sumtracker alternative · all Stocky alternatives compared
FAQ
Is Inventory Planner or Sumtracker cheaper?
Inventory Planner: Quote-based. The listing says pricing adapts to your business and to contact them for a quote, and that charges may be billed by Sage outside your Shopify invoice. Sumtracker: Manage $59/month (multichannel inventory sync, bundles, stocktakes; up to 2,500 orders/year). Replenish $119/month adds purchase orders, transfers, forecasting and reorder suggestions. Higher order volumes and Enterprise priced on their website. SteadyShelf is $29/month flat with every feature.
Which is better, Inventory Planner or Sumtracker?
For most small and mid-size stores that mainly need to know what to reorder, how much and when, we recommend SteadyShelf at $29/month flat. Consider Inventory Planner if you sell across many channels and warehouses and want enterprise reporting with a dedicated rollout. Consider Sumtracker if you sell across several marketplaces and need inventory synced between them. SteadyShelf plans reorders for your Shopify store; it doesn't sync stock across channels.
Is there a simpler alternative to Inventory Planner and Sumtracker?
Yes. SteadyShelf focuses on one job: an order-by date and quantity for every product from your Shopify sales and each supplier's lead time, then a purchase order you approve. $29/month flat.
Let SteadyShelf do this math for every SKU
Order-by dates per supplier, seasonal forecasts and draft POs for your Shopify store. $29/month after a 30-day free trial.
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