FlowPost: Flow Email via SMTP vs MailAction: Send Email in Flow
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 15, 2026 for FlowPost, Nov 7, 2026 for MailAction.
The short answer
- Both list a free plan. Paid plans start at $9.99/month for FlowPost and $9.99/month for MailAction.
- MailAction lists 14 features FlowPost’s listing doesn’t mention, including Abandoned cart, Analytics, Back-in-stock emails.
Head to head
Free
- · 1 email provider
- · 7-day log
- · 75 emails/month
Starter
- · 1,000 emails/month
- · All providers
- · Attachments
- · Backup provider fallback
- · Delivery status
Growth
- · 3,000 emails/month
- · 90-day log
- · Multiple senders
- · Priority queue
Scale
- · 180-day log
- · Priority support
- · Unlimited emails
Free
- · 3-day sent email log
- · 50 emails/month
- · All providers
Starter
- · 30-day sent email log
- · 500 emails/month
- · All providers
- · Email support
- · Fallback provider routing
Growth
- · 2,500 emails/month
- · 90-day sent email log
- · All providers
- · Delivery status tracking
- · Email support
- · Fallback provider routing
Scale
- · 180-day sent email log
- · All providers
- · Delivery status tracking
- · Email support
- · Fallback provider routing
- · Priority processing
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureShopify Flow's built-in email can't send to a customer's address. FlowPost adds a Send transactional email action to Flow, so you can email customers, staff or suppliers when anything happens: order tagged, COD order, B2B approval, low stock or fraud risk. Send from your own domain through SMTP, Gmail, Microsoft 365, Amazon SES, Resend, SendGrid, Mailgun or Postmark.
MailAction adds Send transactional email and Send marketing email actions to Shopify Flow. Email content is customizable using Liquid variables — pull in order details, customer names, any attribute from your workflow. Emails go out through your own provider (such as SendGrid, Brevo, Resend, or Mailgun) and domain via API key or SMTP.
- Send transactional email from Shopify Flow workflows
- Connect SMTP or providers like SES, Resend, SendGrid, and Mailgun
- Optional fallback routing when the primary provider fails
- Templates and sent-email logs for day-to-day operations
- Send emails from Shopify Flow workflows via API key or SMTP from your own domain
- Set a primary and backup provider — switches automatically if the primary fails
- See whether each email was delivered, bounced, or reported as spam
- Customize subject, preview text, and body with Liquid variables
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 |  FlowPost |  MailAction |
|---|---|---|
| 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 | FlowPost | MailAction |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 1 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | FlowPost | MailAction |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $9.99/month | $9.99/month |
| Longest free trial | 7 days | Not listed |
| Plans listed | 4 | 4 |
Listing
| Measure | FlowPost | MailAction |
|---|---|---|
| Shopify category rank | #246 | #37(ahead) |
| Shopify App Charts | #21 on Pricing moves in Email marketing | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jul 20, 2026 | May 18, 2026 |
| Languages | 1 | 1 |
| Developer | AVOITS | IE Aleksei Kulikov |
FAQ
FlowPost and MailAction: common questions
- Is FlowPost or MailAction cheaper?
- Both list a free plan. Paid plans start at $9.99/month for FlowPost and $9.99/month for MailAction. 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?
- FlowPost lists 1 the others don’t mention, such as Tracking. MailAction lists 14 the others don’t mention, such as Abandoned cart, Analytics, Back-in-stock emails, Browse abandonment. 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 15, 2026 for FlowPost, Nov 7, 2026 for MailAction; 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 15, 2026 for FlowPost, Nov 7, 2026 for MailAction. 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.