BuyPlanr ‑ Inventory Planner vs Synplex Inventory Planner
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026.
The short answer
- Paid plans start at $19/month for BuyPlanr and $9.99/month for Synplex Inventory Planner.
- Synplex Inventory Planner lists 9 features BuyPlanr’s listing doesn’t mention, including AI optimization, Backorders, Custom reports.
Head to head
Mini
- · Early Bird! First 50 get 50% off 3 mo.
- · Inventory forecasts
- · Purchase orders
- · Replenishment recommendations
- · Stock takes & inventory reports
- · Up to 100 active SKUs
Starter
- · Early Bird! First 50 get 50% off 3 mo.
- · Inventory forecasts
- · Purchase orders
- · Replenishment recommendations
- · Shipment tracking
- · Stock takes & inventory reports
Growth
- · Early Bird! First 50 get 50% off 3 mo.
- · Inventory forecasts
- · Purchase orders
- · Receiving Inbox automation
- · Replenishment recommendations
- · Shipment tracking
Pro
- · Early Bird! First 50 get 50% off 3 mo.
- · Inventory forecasts
- · Purchase orders
- · Receiving Inbox automation
- · Replenishment recommendations
- · Shipment tracking
Advanced
- · Early Bird! First 50 get 50% off 3 mo.
- · Inventory forecasts
- · Purchase orders
- · Receiving Inbox automation
- · Replenishment recommendations
- · Shipment tracking
Scale
- · Early Bird! First 50 get 50% off 3 mo.
- · Inventory forecasts
- · Inventory forecasts
- · Purchase orders
- · Receiving Inbox automation
- · Shipment tracking
Launch
- · Custom alerts & notifications
- · Demand planning
- · For shops under $100k annual revenue
- · Inventory reporting & insights
- · Smart replenishment
- · Up to 200 active SKUs/variants
Starter
- · Custom alerts & notifications
- · Demand planning
- · For shops under $500k annual revenue
- · Inventory reporting & insights
- · Smart replenishment
- · Unlimited SKUs/variants
Pro
- · All Starter features, plus:
- · For shops under $1.5m annual revenue
- · Kitting & production orders
- · Material management
Growth
- · API access
- · All Pro features, plus:
- · Custom Reports
- · Includes stores to $5M annual revenue
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureBuyPlanr is inventory management and purchase order software for Shopify. Forecast what to reorder, when to order, and how much using sales history, stock, incoming inventory, supplier lead times, target coverage, and seasonality. Create and send POs, track deliveries, and receive partial or complete shipments.
Synplex helps Shopify merchants turn products, inventory, sales history, and supplier lead times into a practical demand plan. Generate reorder recommendations, review stockout and overstock risk, adjust planning assumptions, and prepare purchase, transfer, or production orders from one workflow. Built for growing brands that are outgrowing spreadsheets, manual reorder checks, or Stocky-style inventory planning.
- Forecast demand from sales, stock, lead times, seasonality and more
- Reorder recommendations with quantities and order-by dates
- Purchase orders with suppliers, costs, incoming stock, and ETAs
- Receiving Inbox for email from external warehouse with order delivered file
- Track every SKU in real time - low, overstocked, reserved, in transit.
- Create smart purchase, transfer and production orders in minutes.
- Plan demand with AI forecasts that learn from trends and seasonality.
- Manage assemblies with BOM support, from components to finished goods.
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.
Adoption
| Measure |  BuyPlanr |  Synplex Inventory Planner |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | BuyPlanr | Synplex Inventory Planner |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 2 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | BuyPlanr | Synplex Inventory Planner |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $19/month | $9.99/month(ahead) |
| Longest free trial | 14 days | 30 days |
| Plans listed | 6 | 4 |
Listing
| Measure | BuyPlanr | Synplex Inventory Planner |
|---|---|---|
| Shopify category rank | #191(ahead) | #583 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jun 30, 2026 | May 4, 2026 |
| Languages | 1 | 1 |
| Developer | Kellerman Media | Synplex |
FAQ
BuyPlanr and Synplex Inventory Planner: common questions
- Is BuyPlanr or Synplex Inventory Planner cheaper?
- Paid plans start at $19/month for BuyPlanr and $9.99/month for Synplex Inventory Planner. 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?
- BuyPlanr lists 4 the others don’t mention, such as Barcodes, Import and export, Scanners, SKUs. Synplex Inventory Planner lists 9 the others don’t mention, such as AI optimization, Backorders, Custom reports, Email notifications. 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; 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. 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.