Shopify app
NewPackOS Checkout
Live shipping rates priced to the right box, not guesswork
- Rating on Shopify
- 5.0(1)
- Reviews
- 1
- Developer
- PackOS
- Launched
- May 20, 2026
- Pricing
- From $50/month. Free trial available.
- Languages
- English
The facts
Every value below is read from the listing or computed by the published formula. Nothing is a verdict.
Bayesian rating
4.17
category median 4.19
Reviews in the last 180 days
1
from the 1 reviews on the listing page
1 and 2 star share
0%
0 of 1
Starting price
$50/month
band: $30 to $99 · 14-day trial
Pricing plans as listed on Shopify
All charges are billed in USD. Recurring and usage-based charges are billed every 30 days. See all pricing options
| Plan | Price | Billed yearly | Trial | Usage fee | Included |
|---|---|---|---|---|---|
| Starter | $50/month | $540/year | 14 days | none stated | 1,000 checkout rate calculations/mo; Real-time rates at checkout; Box size library; Label purchasing; 90-day margin history; Email support |
| Basic | $105/month | $1134/year | 14 days | none stated | Everything in Starter; 3,000 checkout rate calculations/mo; 6-month margin history; CSV import |
| Growth | $199/month | $2149.20/year | 14 days | none stated | Everything in Basic; 8,000 checkout rate calculations/mo; Automation rules; 12-month margin history; Priority email support |
| Pro | $399/month | $4309.20/year | 14 days | none stated | Everything in Growth; 20,000 checkout rate calculations/mo; Advanced automation rules; Multiple ship-from locations; Priority chat support |
Rating distribution
1 ratings on the listing when last refreshed.
- 5 stars1(100%)
- 4 stars0(0%)
- 3 stars0(0%)
- 2 stars0(0%)
- 1 star0(0%)
Latest reviews
The 1 most recent of 1 on-page reviews, quoted to at most 25 words each. Full reviews are on the Shopify listing.
5 starsAug 21, 202638 Motorsports LLCUnited States3 months using the app
"PackOS has helped our company to FINALLY have shipping rates to match exactly what the customer actually orders. Talk about long overdue! In the past ..."
Features Shopify lists for this app
Feature handles from the listing, grouped as Shopify groups them.
Rate calculation
- Flat fee
- Carrier-based
- Dimension-based
- Product-based
- Quantity-based
- Weight-based
- ZIP/post code
- Multi-zone
- Multi-origin
Customization
- Address validation
- Custom rules
Works with
Third-party integrations link to their hub when 5 or more apps name them. Shopify's own surfaces are listed separately and never counted as integrations.
Shopify surfaces: Shopify Admin
Data access
As disclosed on the listing. Never scored.
View customer data
Sensitive data, device and activity data
- Sensitive data: Name, email address, phone number, physical address
- Device and activity data: Geolocation, IP address, browser and operating system
View staff and contributor data
Store owner
- Store owner: Name, email address, phone number, physical address
View and edit store data
Customers, products, orders
- View customers: Customer data
- View products: Products, collections
- Edit orders: Assigned fulfillment, merchant managed fulfillment, all order history for the last 60 days, shipping information
- View other data: Locations
Developer
PackOS
- Apps in the dataset:
- 1
- Address:
- Phoenix, AZ, US
- Website:
- www.packospro.com
- Support email domain:
- packospro.com
- English support:
- yes
- Resources:
- Privacy policy
Similar apps
Shopify's own similar-apps list first, then apps in the same category that share the most feature handles.
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From the Shopify listingDeveloper claims, shown verbatim and collapsed. 90 words.Show
- Bin-packing engine selects the recommended box for each order automatically
- Live carrier rates from USPS, UPS, and FedEx returned at checkout
- Configurable box inventory, carrier settings, and shipping rules
PackOS selects the correct box for every order and returns accurate live carrier rates at checkout.
PackOS solves the problem of inaccurate shipping rates at checkout. When box size is estimated incorrectly, merchants either overcharge customers and lose carts, or undercharge and lose margin. PackOS uses bin-packing logic to determine which box an order actually fits in, then queries live rates from USPS, UPS, FedEx, and other carriers for that specific package. Merchants configure their box inventory once, set their carrier preferences, and PackOS handles the rest automatically at checkout.
Questions and comments
Questions people ask about PackOS Checkout, answered from what this page shows. Entries marked Site editor are written by the EcomAppReviews editor. Reader comments appear after a person has read and approved them, usually within a day. E-mail addresses are never published.
Last updated Oct 21, 2026. Ratings and review counts are the values shown on each app's public listing. How the numbers are computed: methodology.
1 review counted on the listing. Rating and count in the structured data are the values Shopify displayed when the listing was last refreshed.