Mergerate: Combined Shipping vs Unitedly Studio: ShipSplit
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 6, 2026 for Mergerate, Oct 31, 2026 for Unitedly Studio.
The short answer
- Paid plans start at $24/month for Mergerate and $9.99/month for Unitedly Studio.
- Mergerate lists 2 features Unitedly Studio’s listing doesn’t mention, including Carrier-based, Multi-origin.
Head to head
Standard
- · Combined rates across locations
- · Rate request log
- · Your own flat rates by country
Starter
- · Mixed-cart shipping test
- · Native Shopify profile setup
- · Product assignment review
- · Up to 3 vendors
Scale
- · Growing vendor catalog support
- · Mixed-cart shipping test
- · Mixed-cart shipping test Shipping rate r
- · Product assignment review
- · Up to 10 shipping profiles
Growth
- · Large vendor catalog support
- · Mixed-cart shipping test
- · Product assignment review
- · Shipping rate readiness checks
- · Unlimited shipping profiles
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureWhen an order ships from more than one location, Shopify adds each location's app and carrier rates together, so a split cart can be charged shipping twice. Mergerate is a carrier service: it charges your own rates on one shipment and returns the same options at $0 on the others, with a label you choose. Set flat prices, countries and delivery estimates; it works best with flat rates.
Ship Split helps merchants split multi-vendor carts into separate Shopify Shipping Profile groups using native Shopify settings. Customers can see applicable shipping rates at checkout and understand when items may ship in separate packages.
- Split-cart rate requests answered as one shipping charge per order
- Your own flat rates, by country, with delivery estimates
- The same options at $0 on the other shipments, labelled
- Delivery estimates and your own label on the $0 shipments
- Split carts by vendor, supplier, or fulfillment source
- Use native Shopify Shipping Profiles for setup
- Show profile-based shipping rates for mixed carts
- Review product assignments and spot setup gaps
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 |  Unitedly Studio | |
|---|---|---|
| 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 | Unitedly Studio | |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | 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 | Unitedly Studio | |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $24/month | $9.99/month(ahead) |
| Longest free trial | 14 days | 7 days |
| Plans listed | 1 | 3 |
Listing
| Measure | Unitedly Studio | |
|---|---|---|
| Shopify category rank | Not enough data | #487 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Nov 5, 2026 | Jul 7, 2026 |
| Languages | 1 | 1 |
| Developer | Sam Bartolotta | Unitedly Studio |
FAQ
Mergerate and Unitedly Studio: common questions
- Is Mergerate or Unitedly Studio cheaper?
- Paid plans start at $24/month for Mergerate and $9.99/month for Unitedly Studio. 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?
- Mergerate lists 2 the others don’t mention, such as Carrier-based, Multi-origin. Unitedly Studio lists 2 the others don’t mention, such as Quantity-based, Weight-based. 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 6, 2026 for Mergerate, Oct 31, 2026 for Unitedly Studio; 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 6, 2026 for Mergerate, Oct 31, 2026 for Unitedly Studio. 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.