Loops is a visual SaaS email workspace. Send & Retain is built for products and agents to operate.
Choose Loops when the visual SaaS email workflow is the center of the job. Choose Send & Retain when API and MCP operation, product events, transactional messages, and lifecycle flows must share one system.
✓Both focus on product email; the daily operator and control model are the sharper distinction.
One system, end to end
Product event accepted
Trigger
Paused flow inspected
Run
Delivery state retained
Report
[ 01 / 04 ]The short answer
Decide whether the workspace or the programmable surface should lead.
Loops is positioned as a SaaS email platform with campaigns, loops, transactional email, contacts, templates, and a polished visual workflow. Send & Retain is built so product code, authenticated agents, and human operators can work through the same contact, event, flow, and sending model.
- Prefer Loops when a focused visual SaaS marketing workspace is the team's natural home.
- Prefer Send & Retain when agent tools and public APIs are first-class operating interfaces, not only integration plumbing.
- Avoid migrating a healthy workflow until a real use case proves the alternative reduces operational friction.
A journey you can inspect
When contact.created fires
No filter — every event enrolls.
Welcome email
Send
2 days
Wait
Activated?
Branch
[ 02 / 04 ]Operating model
Similar SaaS audience, different primary interface.
Primary experience
Focused visual workspace for SaaS email
Email operating system across API, MCP, dashboard, and Copilot
Lifecycle model
Loops and campaigns managed in the product interface
Event-triggered flows with explicit branches, delays, exits, and tool operations
Product integration
Contacts, events, API, SDKs, and integrations for SaaS teams
Contact and event APIs designed to drive both transactional and lifecycle work
Agent operation
Developer integrations can automate surrounding workflows
Authenticated agents receive a dedicated public MCP tool surface
Transactional email
Included alongside marketing email
Shares templates, sending evidence, suppressions, and contact context with lifecycle email
Best fit
SaaS teams prioritizing an approachable visual email workflow
Product-led teams wanting programmatic and agent-led operation with human controls
[ 03 / 04 ]Evaluation test
Rebuild one lifecycle path in both systems.
Import representative contacts
Include consent, a suppressed address, custom attributes, and recent product events.
Create a two-message flow
Use a real entry event, an adjustable delay, and a conversion event that exits the path.
Change the message safely
Compare drafting, previewing, and publishing, then trace why one contact entered, what was sent, and what happened next.
Evidence to collect
- Time to a verified first send
- Clarity of entry and exit state
- Consent and suppression behavior
- Operator effort after launch
[ 04 / 04 ]Explore the model
See how Send & Retain handles the recurring lifecycle work.
Questions people ask us
Choose the workflow your team can keep operating.
Test one event-triggered journey from build through diagnosis before changing platforms.