Postflows vs Sequenzy: Email Marketing, SMS
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 10, 2026.
The short answer
- Only Sequenzy lists a free plan. Paid plans start at $89/month for Postflows and $19/month for Sequenzy.
- Sequenzy lists 21 features Postflows’s listing doesn’t mention, including A/B testing, Abandoned cart, AI generation.
Head to head
- United States
- United Kingdom
- Germany
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Starter
Growth
Scale
Free Forever
- · 2.5K emails/month
- · AI assistant, CLI, and MCP tools
- · Analytics and revenue tracking
- · Campaigns and transactional email
- · Powerful automations
- · Powerful segmentation
15k Emails/month
- · 15K emails/month
- · AI assistant, CLI, and MCP tools
- · Analytics and revenue tracking
- · Campaigns and transactional email
- · Powerful segmentation & automations
- · Shopify customer and order sync
120k Emails/month
- · 120K emails/month
- · AI assistant, CLI, and MCP tools
- · Analytics and revenue tracking
- · Campaigns and transactional email
- · Powerful segmentation & automations
- · Shopify customer and order sync
1.2M Emails/month
- · 1.2M emails/month
- · AI assistant, CLI, and MCP tools
- · Analytics and revenue tracking
- · Campaigns and transactional email
- · Powerful segmentation & automations
- · Shopify customer and order sync
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureShoppers want to know where their order is, and every unanswered question becomes a support ticket. Postflows turns live carrier tracking into 8 shipping events, from order placed to delivered. Each event goes straight to the email or SMS platform you already use, where it can start a flow, so brands send branded shipping updates without switching tools.
Sequenzy helps merchants run email and SMS marketing with store data. After install, customers, products, orders, checkout activity, and stock events sync into subscriber profiles. Merchants can send newsletters, welcome flows, abandoned cart and checkout recovery, post-purchase follow-ups, win-back campaigns, back-in-stock alerts, and replenishment reminders across email and SMS.
- 10+ delivery event triggers for Klaviyo
- Branded tracking page with origin masking
- Automated WISMO ticket reduction
- Sync customers, orders, products, variants, inventory, and revenue data
- Build welcome, cart, post-purchase, win-back, and replenishment flows
- Target campaigns by purchases, spend, products, tags, and engagement
- Capture back-in-stock requests and notify shoppers when items return
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 |  Postflows |  Sequenzy |
|---|---|---|
| Detected stores | Not published | 17 |
| Net store change, 28 days | 0 | +1 |
| Stores added, 28 days | Not enough data | 1 |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Apparel & Accessories, Health & Beauty, Food, Beverages & Tobacco |
| Top store countries | Not published | United States, United Kingdom, Germany |
Reviews
| Measure | Postflows | Sequenzy |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 6 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
Postflows and Sequenzy: common questions
- Is Postflows or Sequenzy cheaper?
- Only Sequenzy lists a free plan. Paid plans start at $89/month for Postflows and $19/month for Sequenzy. 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?
- Postflows lists 1 the others don’t mention, such as Templates. Sequenzy lists 21 the others don’t mention, such as A/B testing, Abandoned cart, AI generation, Analytics. 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 10, 2026; 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 10, 2026. 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.