Honest acknowledgment — "Zapier is good. That's not the fight."
Let's be fair, because you'll find out anyway.
Zapier practically invented connecting app A to app B. And Zapier Agents is a real, first-class product: a free tier of 400 activities a month, a Pro plan at $33.33 a month (billed annually) with 1,500 activities, a guardrails layer for PII, agent versioning. If you enjoy building — designing AI teammates, wiring up their tools, testing, tuning, shipping version 2 — Zapier gives you a serious workshop, from a company that's been doing automation longer than almost anyone.
Here's the thing, though: a workshop still needs a builder. And the builder is you.
We're really good at one thing: execution. You don't build Sterling. You give it a job. It does the work inside your actual stack, shows you the finished thing in the thread, and checks with you before anything leaves your business or can't be undone. If you want a platform, buy Zapier. If you want the work done, keep reading.
Comparison table
| Sterling | Zapier Agents | |
|---|---|---|
| What it is | A coworker in your Slack that does the job itself | A platform for building AI teammates you design and run |
| Where the work happens | In the Slack thread where you asked for it | On Zapier's platform — Slack is one endpoint among many, not home |
| Setup | Add to Slack, connect your apps, type the job. Minutes. | Design the agent, wire its tools, test it, version it, maintain it |
| Week three | No flows to break. Odd cases show up as a question in a thread you're already reading. | "Constant errors in Zaps that have been running well and working perfectly. It completely ruins the idea of an automation if I need to go in there and manually fix it every week." — a Trustpilot reviewer, on Zapier |
| Before anything leaves your business | Built in: nothing gets sent to your customers, charged, or deleted without your go | Yours to design: you wire approval steps into each agent yourself |
| Per-person control | Off, view, or full access — per person, per tool, set by you | A guardrails and PII layer at the platform level |
| The bill | $50/month = 20,000 credits for the whole team. No per-seat charges. Top-ups are $25, triggered by you. | Agent activities metered on top of Zap task limits — two meters, one bill. "Every little action counts as a task, which means your bill skyrockets before you know it." — a Trustpilot reviewer, on Zapier |
| Free to try | 20,000 free credits on your real stack | 400 free activities a month |
Every cell above is checkable. That's on purpose.
The pain (for the reader already living the Zapier life)
You know the routine.
You built the Zap on a Saturday. It worked. You felt like a wizard. Then a field changed in Shopify, or an app updated its API, and the wizardry quietly stopped — and nobody told you until the numbers looked wrong.
One owner put it flatly: "A zap breaks, a field changes, or the account runs out of zaps and it is no longer set and forget." — a Reddit owner.
And here's the part that stings. The fixing isn't free. It's your Tuesday night. A Trustpilot reviewer did the math out loud: "i could have done the entire task i'm trying to automate with the time i've spent trying to get zapier. insanely garbage. really really bad." (His typos, not ours. He was in a hurry — he had a Zap to fix.)
Another reviewer's warning to the next buyer: "For the love of God give them a proper try before you go in for a plan. My initial couple of tests looked ok, but went into production after signing up and had things falling over almost immediately."
Agents don't change the shape of this. They're still things you build, on the same platform, with a second meter running. You didn't want a build project. You wanted the report on Monday.
The solution reveal
That's why Sterling doesn't have flows at all.
Week three is where automations go to die. Sterling doesn't have flows to break — it has a job. You describe the job in plain English, in Slack: "Run our weekly Shopify and Klaviyo audit and draft the win-back campaign." Sterling connects to your stack, pulls the numbers, compares ROAS across channels, flags what moved, drafts the campaign in your voice — and then stops.
Because here's the rule at the center of Sterling: it does the work you delegate, then checks with you before anything leaves your business or can't be undone. A message to a customer, an external post, a delete — each one shows up in the thread first. You reply "go." It executes. It's logged.
Sterling does everything up to the send. The send is yours.
Benefits
1. The work arrives finished — not as a flow diagram
Zapier hands you the tools to assemble the machine. Sterling hands you the output of one. Say it's Monday and the weekly numbers are due: the report is already built, the CRM updates are made, the recovery campaign is drafted and sitting in the thread — waiting for your go before it reaches a single customer. The difference between a chatbot, a platform, and a coworker is whether the work is finished at the end. Sterling finishes it.
2. Your go in the thread is built in, not your weekend project
On Zapier, approval steps are something you design into each agent. On Sterling, they're the floor. A skeptical owner once wrote the acceptance test for this whole category: "if there's no exception queue, audit log, and big red pause button, it's not automation, it's just a faster way to lose money." — a Reddit owner. Sterling is built for exactly that: the job runs in a Slack thread you can see, every action lands in the audit log, and pause is a dashboard button.
3. One meter you can actually reason about
$50 a month gets your whole team a coworker — 20,000 credits that cover the jobs you actually delegate: the weekly audit, the campaign drafts, the CRM updates. No per-seat charges. Run low? Sterling pings you in Slack at 80% — before it matters. A top-up is $25 for 10,000 credits — decided by you, not discovered on an invoice. Compare that with two meters — agent activities on top of task limits — and a bill that, in one reviewer's words, "skyrockets before you know it."
4. Per-person control a non-technical owner actually wants
Each teammate's access is off, view, or full — per person, per tool, set by you in a minute. Your ops lead can write to Klaviyo; the new hire can look but not touch; nobody touches QuickBooks without you. Not a guardrails console to study. Three words per person.
How it works
1. Add Sterling to your Slack. Minutes. No code, no IT contractor, no sales call. 2. Connect your apps. Shopify, Klaviyo, Meta and Google Ads, QuickBooks, your CRM — 3,000+ apps. Then set each person's access: off, view, or full. 3. Type the job. "Run the weekly audit and draft the win-back campaign." The finished work lands in the thread. Anything that leaves your business or can't be undone waits for your go. Recurring jobs run on schedule — same gate, every time.
If we could make it three steps shorter, we would. There's nothing left to remove.
Frequently Asked Questions
What happens when I hit my credit limit? Sterling pauses and tells you in Slack — after already warning you at 80%. You top up for $25 or wait for next month's 20,000. No overage math, no invoice archaeology.
Here's the whole deal, no asterisks:
- $50/month = 20,000 credits. Your whole team, unlimited seats, 3,000+ app connections.
- Your first 20,000 credits are free — and they run on your real stack, not a demo store.
- No contracts. Cancel from the dashboard whenever you like.
- No surprise charges. An 80% alert in Slack, $25 top-ups you trigger, and a hard pause if credits run out.
Worst case? You spent an afternoon and got a free audit of your own store. The downside of trying is one Slack app. The downside of not trying is another Tuesday night in the Zap editor.
P.S.
P.S. — One Trustpilot reviewer said he "could have done the entire task i'm trying to automate with the time i've spent trying to get zapier." Flip that sentence around and you have Sterling's whole pitch: you can hand off the entire task in the time it takes to open the Zap editor. Type one message in Slack. Sterling runs the audit, drafts the campaign, and waits for your yes. Start with 20,000 free credits.