Workflow Webhooks vs FlowRelay: Webhooks to Flow
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 21, 2026 for Workflow Webhooks, Oct 14, 2026 for FlowRelay.
The short answer
- Both list a free plan. Paid plans start at $35/month for Workflow Webhooks and $29/month for FlowRelay.
- Workflow Webhooks lists 5 features FlowRelay’s listing doesn’t mention, including Email responses, Order tags, Product tags.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · 500 invocations per 30 days
- · CORS and duplicate delivery protection
- · Full invocation history with replay
- · Payload mapping to Flow trigger fields
- · Scheduled polling and sync responses
- · Static token or HMAC-SHA256 auth
Grow
- · 15,000 invocations per 30 days
- · CORS and duplicate delivery protection
- · Full invocation history with replay
- · Payload mapping to Flow trigger fields
- · Scheduled polling and sync responses
- · Static token or HMAC-SHA256 auth
Unlimited
- · CORS and duplicate delivery protection
- · Full invocation history with replay
- · Payload mapping to Flow trigger fields
- · Scheduled polling and sync responses
- · Static token or HMAC-SHA256 auth
- · Support via email or Slack
Free/Test
- · 500 accepted events/month
- · Agent Access included (Free/Test limits)
- · Diagnostic shares and replay executions
Starter
- · 25,000 accepted events/month
- · Agent Access included
- · Diagnostic shares and replay executions
Growth
- · 250,000 accepted events/month
- · Agent Access included
- · Diagnostic shares and replay executions
Scale
- · 1,000,000 accepted events/month
- · Agent Access included
- · Diagnostic shares and replay executions
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureWorkflow Webhooks gives Shopify Flow a URL that any external system can call. A POST maps its payload onto Flow's trigger fields and starts a workflow, with JSON, form and XML bodies supported and arrays split into one run per item. Endpoints are secured with a static token or HMAC-SHA256, with one-click presets for Stripe, GitHub, Typeform and more.
FlowRelay turns blind webhook handoffs into visible, auditable receipts for Shopify Flow. Create webhook trigger endpoints for ERP, WMS, CRM, 3PL, app, or script events; authenticate with HMAC-SHA256 or a static header; and see whether each event was accepted, mapped, and handed to Shopify Flow.
- Trigger Shopify Flow with Webhooks from Any External System
- Manage and Monitor All Webhooks in One Simple Dashboard
- Protect Webhooks Using HMAC or Static Key Authentication
- Detailed Webhook History with Payload, Status, Request headers and Timestamp
- Receive webhook events in Shopify Flow
- Protect senders with HMAC or static header secrets
- See accepted, failed, no-workflow, and handoff receipts
- Replay retained events with receipt facts and cautions
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 |  Workflow Webhooks |  FlowRelay |
|---|---|---|
| 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 | Workflow Webhooks | FlowRelay |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 7 | 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 | Workflow Webhooks | FlowRelay |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $35/month | $29/month(ahead) |
| Longest free trial | Not listed | Not listed |
| Plans listed | 3 | 4 |
Listing
| Measure | Workflow Webhooks | FlowRelay |
|---|---|---|
| Shopify category rank | #28(ahead) | #283 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | May 19, 2025 | Jun 8, 2026 |
| Languages | 1 | 1 |
| Developer | Code Creation Labs GmbH | Ordu Labs |
FAQ
Workflow Webhooks and FlowRelay: common questions
- Is Workflow Webhooks or FlowRelay cheaper?
- Both list a free plan. Paid plans start at $35/month for Workflow Webhooks and $29/month for FlowRelay. 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?
- Workflow Webhooks lists 5 the others don’t mention, such as Email responses, Order tags, Product tags, Return processing. FlowRelay lists 1 the others don’t mention, such as APIs. 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 21, 2026 for Workflow Webhooks, Oct 14, 2026 for FlowRelay; 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 21, 2026 for Workflow Webhooks, Oct 14, 2026 for FlowRelay. 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.