Postsell: Order Editing Upsell vs Subbify | Easy Substitutions
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 Postsell, Oct 13, 2026 for Subbify.
The short answer
- Paid plans start at $19/month for Postsell and $5/month for Subbify.
- Postsell lists 15 features Subbify’s listing doesn’t mention, including Address, Analytics, Automated workflows.
Head to head
- Australia
- France
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Unlimited
Starter
- · Email Customization & Branding
- · Multi-Option Substitution Offers
- · Up to 25 Substitution Offers
Pro
- · Auto Invoice & Refunds
- · Auto Order-Tagging
- · Everything in Starter
- · Remove Subbify Branding
- · Slack Integration
- · Unlimited Substitution Offers
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureYour order confirmation email gets a 70% open rate. Why waste it? Postsell turns confirmation emails into revenue machines by embedding native upsell offers that customers actually want to click. No pushy pop-ups ruining your checkout. Just smart, one-click additions to existing orders that feel natural and boost AOV instantly. Plus, eliminate support headaches with full self-service order editing. Wrong address?
Stop canceling orders due to stockouts or unexpectedly unavailable products. Subbify makes post-purchase product substitutions effortless—select unavailable items, choose replacements from your catalog, add optional discounts, and send. Customers receive a clean email where they review and approve alternatives with a single click. Works seamlessly with all currencies and pricing worldwide.
- Allow customer-initiated address changes
- Customisable deadline for customer edits
- Deliver exceptional customer service
- Upsell or Downsell Substitutions
- Auto Invoicing and Refund (Optional)
- Custom Branding
- Auto Order Tagging
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 | Postsell |  Subbify |
|---|---|---|
| Detected stores | 4 | 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 | Apparel & Accessories, Health & Beauty | Not published |
| Top store countries | Australia, France | Not published |
Reviews
| Measure | Postsell | Subbify |
|---|---|---|
| App Store rating | 3.7 ★ | Not published |
| App Store reviews | 22 | Not published |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
Postsell and Subbify: common questions
- Is Postsell or Subbify cheaper?
- Paid plans start at $19/month for Postsell and $5/month for Subbify. 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?
- Postsell lists 15 the others don’t mention, such as Address, Analytics, Automated workflows, Bulk editing. 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 Postsell, Oct 13, 2026 for Subbify; 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 Postsell, Oct 13, 2026 for Subbify. 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.