Volley vs BuildFerry

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Volley compared with BuildFerry
Detail	Volley	BuildFerry
What it does	API sequence diagram tool with payloads on every arrow	Install iOS builds on any iPhone with one link
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free: editor, local diagrams, share links, SVG and PNG export, CLI, 3 saved diagrams, HAR imports up to 8 requests, 200 hosted API and MCP calls a month, 1 webhook inbox with 25 requests a month, 1 recording link with 3 recordings. Pro: $9/month or $90/year (billed in advance), up to 1,000 saved dia	Free: $0 forever (1 app, 2 stored builds per app, builds up to 200 MB). Solo: $12/month (5 apps, 10 stored builds per app, builds up to 1 GB, or $120/year with two months free). Pro: $29/month (20 apps, 30 stored builds per app, builds up to 2 GB, or $290/year with two months free).
Key features	Plain-text sequence diagram editor with real-time rendering Request and response payloads displayed on every arrow HAR file import with automatic redaction of secrets Webhook inbox to capture and diagram provider deliveries Recording links to collect customer HAR files as diagrams Drift Check to update diagrams when APIs change SVG and PNG export for sharing and embedding AI agent support via MCP server, HTTP API and CLI README embeds that update when diagrams are edited Presentation mode for step-through walkthroughs	UDIDs collect automatically via one-time profile approval in Safari Cloud signing with no Mac or Xcode required Approval controls before testers can install PIN, expiry date and auto-approve options for share links Real certificate profiles showing Verified status in iOS Displays your current iPhone registration count against Apple's 100-device limit Encrypted Apple key stored at rest and deleted after each signing job One permanent share link per app that works for all new testers Builds up to 1 GB on Solo and 2 GB on Pro plans
What makes it different	No account needed to write and share diagrams AI can write diagrams from plain-text syntax Built from real traffic: HAR files, webhooks and customer recordings	No UDID hunting required; testers approve with one tap in Safari One link per app stays live and re-signs automatically for new testers, unlike services that require rebuilding Direct iOS installation from Safari with no TestFlight app or Beta App Review delay Auto-registers new device UDIDs and re-signs builds instantly in the cloud
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	3 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	3	0
Citation Flow (Majestic)	22	0
Referring domains (Majestic)	8	0

5 details filled in for both companies.

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