Simple Inventory Sync vs Stock Master Inventory Sync
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 3, 2026 for Simple Inventory Sync, Oct 13, 2026 for Stock Master Inventory Sync.
The short answer
- Paid plans start at $9/month for Simple Inventory Sync and $4.99/month for Stock Master Inventory Sync.
- Simple Inventory Sync lists 10 features Stock Master Inventory Sync’s listing doesn’t mention, including Bulk edit, CSV import and export, Data sync.
Head to head
Update inventory manually or automatically via CSV files.
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Entry
- · 1 automated sync feed
- · Auto-syncs as often as once per day
- · CSV and Excel import, CSV export
- · Inventory valuation reports
- · Manual low stock check
- · Unlimited inventory locations
Starter
- · 1 automated sync feed
- · Auto-syncs as often as every hour
- · CSV and Excel import, CSV export
- · Inventory valuation reports
- · Manual low stock check
- · Unlimited inventory locations
Growth
- · Auto-syncs as often as every 15 minutes
- · CSV and Excel import, CSV export
- · Daily low stock alerts with CSV
- · Inventory valuation reports
- · Unlimited inventory locations
- · Up to 25,000 SKUs
Scale
- · Auto-syncs as often as every 5 minutes
- · CSV and Excel import, CSV export
- · Daily low stock alerts with CSV
- · Inventory valuation reports
- · Unlimited SKUs
- · Unlimited automated sync feeds
Simple
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureWhen supplier files and warehouse counts disagree, you must update inventory to avoid oversells. Simple Inventory Upload imports CSV and Excel files and maps columns once. Update quantities, prices, cost, barcodes, and weight for existing variants. Pull feeds from URL, FTP, or SFTP. Schedule recurring imports to keep stock aligned across locations. Auto-hide out-of-stock items and export inventory valuation CSVs.
The Stock Master Inventory Sync application seamlessly integrates with your Shopify store, allowing you to easily synchronize your inventory quantities across multiple Shopify stores. With real-time updates and automatic inventory adjustments, you'll never have to worry about overselling or stockouts again. Our app also supports multi-location inventory with the ability to connect locations together.
- Keeps inventory and pricing up-to-date.
- Automate updates by periodically fetching CSV files from a URL/SFTP server.
- Update tags in bulk
- Helps prevent sales of out-of-stock products.
- Automatically sync inventory when there's a new order across many stores.
- Connect locations together so that stock updates are in the correct location.
- Choose whether inventory is synchronized based on the product's SKU or barcode.
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 |  Simple Inventory Sync |  Stock Master Inventory Sync |
|---|---|---|
| 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 | Simple Inventory Sync | Stock Master Inventory Sync |
|---|---|---|
| App Store rating | 4.9 ★ | Not published |
| App Store reviews | 55 | Not published |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Simple Inventory Sync | Stock Master Inventory Sync |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $9/month | $4.99/month(ahead) |
| Longest free trial | 14 days | 7 days |
| Plans listed | 4 | 1 |
Listing
| Measure | Simple Inventory Sync | Stock Master Inventory Sync |
|---|---|---|
| Shopify category rank | #53 | Not enough data |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | Jun 17, 2015 | Jan 19, 2023 |
| Languages | 1 | Not published |
| Developer | Simple Apps LLC | Value Web Solutions Ltd |
FAQ
Simple Inventory Sync and Stock Master Inventory Sync: common questions
- Is Simple Inventory Sync or Stock Master Inventory Sync cheaper?
- Paid plans start at $9/month for Simple Inventory Sync and $4.99/month for Stock Master Inventory Sync. 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?
- Simple Inventory Sync lists 10 the others don’t mention, such as Bulk edit, CSV import and export, Data sync, Inventory. 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 Nov 3, 2026 for Simple Inventory Sync, Oct 13, 2026 for Stock Master Inventory Sync; 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 Nov 3, 2026 for Simple Inventory Sync, Oct 13, 2026 for Stock Master Inventory Sync. 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.