Zapier connects apps with Zaps you build step by step. Rerun gives you AI agents that take a goal, pick the tools and adapt when something changes.
Last reviewed , against each product’s public pricing and docs.
Pick Zapier for fixed, high-volume triggers between apps, like copying a form entry into a sheet. Pick Rerun when the job needs judgment: reading an email, deciding what to do, following up. Rerun agents run on your own private Box for a flat $24 a month, with no per-task billing.
Rerun does what they do, without building the Zap.
Four differences that change your day to day, shown on the real product.
In Zapier you pick a trigger, then every action and every field mapping. In Rerun you tell the agent what the job is, connect Gmail, Slack or any of 190+ apps, and it works out the steps.
A renamed column or a new email format can stop a Zap. A Rerun agent reads what is in front of it, and it remembers what you corrected, so the next run is sharper.
## Procedure
1. Pull unpaid invoices from Stripe daily
2. Send a first reminder on day 7 past due
3. Escalate to the account owner after 2 tries
4. Log every touch in the CRM thread
## Exceptions
- Never chase an invoice under $50
- Read references/tone.md before escalating
## Billing
- Pays around day 30, sometimes later
- A PO number is required on every invoice
- Invoices go to ap@acme.co, not to Dana
## People
- Dana Reyes runs ops, answers within a day
- Escalations go through their COO
## Voice
- English, formal, no emoji
- Sign off as the founder, not an assistant
- Keep it under 120 words
## Timing
- Follow up twice, then stop
- Send whenever the draft is ready
Before an agent pays an invoice or emails a client, it stops and asks you in the app, then carries on where it paused.
Zapier bills per task, and Zapier Agents per activity on top. Rerun is one plan from $24 a month with no run quotas, so an agent that works every hour costs the same as one that works once a day.
A payment just failed
Margo is chasing it
New email from a lead
Jules is drafting a reply
Every morning at 7:00
Sam sorted your inbox
No migration project. Start with the one task that costs you the most, and let it prove itself.
Describe what it is supposed to achieve, not the steps. Your agent sets itself up from that.
One click for Gmail, Slack, HubSpot or Sheets. Run it on our AI, your own API key or your ChatGPT plan.
Schedule it or trigger it on an event. Once a week of runs looks right, you can switch the Zap off.
Zapier bills per task: 100 tasks a month on the free plan, and Professional starts at $19.99 a month billed annually for 750 tasks. Zapier Agents is a separate add-on billed in activities. Rerun is one plan from $24 a month, unlimited runs.
Everything you need to put agents to work
Add agents, Boxes, seats or model credit whenever you need them.
7-day free trial · cancel anytime
3 agents
Three agents running side by side, each with its own job and tools.
1 Box
Your own private computer in the cloud, where your agents live. Only yours, and your data stays inside it.
1 seat
Your own workspace, with extra seats whenever your team grows.
Bring your own AI
Optional: your own key, subscription or local model.
190+ apps
All your tools ready to connect, plus any MCP or API.
Unlimited executions
No run quotas. Your agents work around the clock.
Agent & Skill library
Ready-made agents and skills, just drag and drop.
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Rerun does what they do, without wiring the scenario.
Read the comparisonRerun does what they do, without wiring the workflow.
Read the comparisonRerun does what they do, without the terminal.
Read the comparison
Rerun does what they do, without the terminal.
Read the comparison
Rerun does what they do, on the model you choose, with its own plan.
Read the comparisonRerun does what they do, without the terminal.
Read the comparisonYes, for work that needs judgment. Zapier moves data between apps along a path you design. Rerun agents take a goal, choose the tools and handle the cases a fixed path does not cover. Many teams keep simple Zaps and move the fragile ones to Rerun.
No. Rerun is a flat plan from $24 a month with unlimited runs. You pay for capacity, meaning agents, Boxes and seats, never for the number of executions.
Zapier Agents run inside Zapier and are billed per activity, with a cap on activities per run. A Rerun agent lives on its own private Box, keeps files, databases and memory between runs, and has no run quota.
Rerun connects to 190+ apps in one click, including Gmail, Slack, Notion, HubSpot and Stripe, plus any MCP server or API. Zapier still has the larger catalog, so check your niche apps first.
No. You describe the job in plain words and connect your apps. There are no fields to map and nothing to install.
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