At Once Inventory vs Lightning Inventory
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 14, 2026 for At Once Inventory, Oct 13, 2026 for Lightning Inventory.
The short answer
- On the Shopify App Store: At Once Inventory 5.0 from 1 reviews and Lightning Inventory 4.5 from 11 reviews.
- Paid plans start at $125/month for At Once Inventory and $15.95/month for Lightning Inventory.
- Lightning Inventory lists 4 features At Once Inventory’s listing doesn’t mention, including Inventory transfer, Scanners, Scanning.
Head to head
Instant inventory transfers - barcode scanning, CSV & more
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Monthly Plan
- · CSV Import & Exports
- · Forecasting & low stock notifications
- · Inventory drift log from Shopify errors
- · Multi-location stock tracking
- · Purchase Orders & Receiving
- · Stock takes
LIGHTNING PRO
- · Barcode & QR scanning
- · CSV import & export
- · Instant adjustments
- · Instant or send & receive transfers
- · Real-time, multi-user stocktakes
- · Supplier receipts
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureAt Once gives Shopify merchants complete inventory control. Track stock live across all locations, manage your full product catalog, and create products with auto-generated SKUs and barcodes. Scan barcodes for stocktakes and receiving. Import and export via CSV, bulk edit variants, run detailed stocktakes, and transfer stock between locations. Purchase orders, returns, edits, and cancellations sync automatically.
The Lightning-fast way to manage inventory. Keep stock levels accurate with real-time, multi-user inventory counting, optimized for mobile and desktop. Scope your stocktakes & inventory counts by location, vendor, product type, tag, or bay/bin locations stored in metafields.
- Build and manage your full product catalog with auto-generated SKUs and barcodes
- Create purchase orders by location, scan to receive, and push stock to Shopify
- Adjust inventory across all locations in real time with bulk edit and CSV export
- Run multi-user stocktakes by location with barcode scanning and auto-save
- Instant transfers - add products, execute, done! Inventory adjusted instantly
- Barcode scanning support - add and increment products just by scanning barcodes
- CSV import & export - easily create transfers with CSV using SKU or barcodes
- Split transfers - adjust origin and destination locations independently
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 |  At Once Inventory |  Lightning Inventory |
|---|---|---|
| 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 | At Once Inventory | Lightning Inventory |
|---|---|---|
| App Store rating | 5.0 ★(ahead) | 4.5 ★ |
| App Store reviews | 1 | 11(ahead) |
| New reviews, 28 days | Not enough data | 0 |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | At Once Inventory | Lightning Inventory |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $125/month | $15.95/month(ahead) |
| Longest free trial | 14 days | 7 days |
| Plans listed | 1 | 1 |
Listing
| Measure | At Once Inventory | Lightning Inventory |
|---|---|---|
| Shopify category rank | #245 | #36 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Apr 30, 2026 | Jul 21, 2021 |
| Languages | 1 | 1 |
| Developer | At Once | Automate Commerce |
FAQ
At Once Inventory and Lightning Inventory: common questions
- Is At Once Inventory or Lightning Inventory cheaper?
- Paid plans start at $125/month for At Once Inventory and $15.95/month for Lightning Inventory. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, At Once Inventory or Lightning Inventory?
- On the Shopify App Store: At Once Inventory 5.0 from 1 reviews and Lightning Inventory 4.5 from 11 reviews.
- What features does each app list that the other doesn’t?
- At Once Inventory lists 3 the others don’t mention, such as Inventory sync, Inventory tracking, Real-time updates. Lightning Inventory lists 4 the others don’t mention, such as Inventory transfer, Scanners, Scanning, Variants. 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 14, 2026 for At Once Inventory, Oct 13, 2026 for Lightning Inventory; 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 14, 2026 for At Once Inventory, Oct 13, 2026 for Lightning Inventory. 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.