For indie AI & no-code builders

Your automation said "success." Your sheet says nothing.

Point us at the Google Sheet your automation fills. We alert you when rows don't show up, show up empty, or arrive late.

Works with n8n, Zapier, Make, or scripts, because we check the destination sheet, not the workflow.

Try SheetSentry free for 30 days. Monitor one spreadsheet tab. No credit card required. Opening soon: join the waitlist to get access first.

Thanks! You're on the list. We'll email you when early access opens.

Green checkmarks don't mean rows were written

Automations can report success for days while writing zero rows: an expired token, an empty upstream response, a renamed column. Nothing errors, so nothing alerts you.

✔ Run #4182 succeeded   Mon 09:00   duration 3.1s
✔ Run #4183 succeeded   Tue 09:00   duration 2.9s
✔ Run #4184 succeeded   Wed 09:00   duration 3.0s
→ Rows written to "Leads": 0

How it works

1

Start your free trial

30 days, one monitor, no credit card.

2

Connect your sheet, pick one tab

Connect Google and pick the spreadsheet in the Google Picker: SheetSentry can only open files you pick and never changes them. Prefer not to connect Google? Paste a published CSV link instead.

3

Set the rules

Choose the timestamp column, the columns that must be filled, the daily deadline, and quiet days.

4

Get alerted

We check every 15 minutes and email you when rows are missing, late, or have empty required fields, and again when the sheet recovers.

5

Upgrade when you need more

Need more monitors, or is the trial ending? Pick a monthly plan. Your monitor keeps its settings and history.

What an alert looks like

⚠ Missing rows: Leads

Your Leads sheet got 0 new rows today. Last valid update: yesterday 9:02 AM.

Deadline: 10:00 AM · Required: email, source

Heartbeats prove it ran. We check what it wrote.

Heartbeat monitors

Ping when a job starts or finishes. A run that writes nothing still looks healthy.

SheetSentry

Checks the destination sheet itself: did rows arrive, are required fields filled, and did they arrive on time?

Pricing

Free trial

$0 for 30 days

1 monitor · No credit card required

After 30 days the monitor pauses unless you upgrade. Its data is kept for 60 days after the trial ends, then deleted.

Opening soon: join the waitlist →

Starter

$29/month

5 monitors

Business

$79/month

15 monitors

Agency

$199/month

50 monitors

One monitor watches one spreadsheet tab. Every plan, including the trial, has the same monitoring: private Google Sheets connection (or a published CSV link), checks every 15 minutes for missing rows, late data and empty required fields, and failure and recovery email alerts.

Paid plans are not available yet: join the waitlist and we'll email you when they open. Billed monthly via Stripe. Cancel anytime. By subscribing you agree to the Terms and Privacy Policy.

FAQ

What is a monitor?

One monitor watches one spreadsheet tab: its timestamp column, the columns that must be filled, and a daily deadline.

What data can you access?

With the recommended private Google Sheets connection, SheetSentry asks Google for the drive.file permission. It covers only the files you pick in the Google Picker, nothing else in your Drive. Google's permission would technically let an app view and change the files you pick (Google offers no read-only version for single files), but SheetSentry's software only reads the spreadsheet you pick, every 15 minutes, and never edits, adds or deletes anything in it. Nothing needs to be published, and you can remove access at any time with Disconnect Google or in your Google account settings. With the optional published CSV link, only the CSV of the tab you publish to the web; note that a published CSV link can be read by anyone who has it.

Will you ever edit my sheet?

No. We never edit, add, or delete anything in your sheet.

What about days with no data on purpose?

You can mark quiet days (weekends, holidays) as allowed so they don't trigger alerts.

Which tools does it work with?

Any tool that writes to Google Sheets: n8n, Zapier, Make, custom scripts.

How much does it cost?

The free trial is $0 for 30 days with 1 monitor and no credit card. Paid plans are billed monthly: Starter $29/month for 5 monitors, Business $79/month for 15, Agency $199/month for 50. Paid plans are not available yet: join the waitlist to be notified.

What happens when the free trial ends?

The 30 days start when you confirm your monitor from the setup email. After 30 days your monitor pauses: no checks and no alerts. We email you 7 days and 1 day before the trial ends. Paused trial data (monitor settings and check history) is kept for 60 days after the trial ends: choose a paid plan in that time to resume checks with the same settings and history. Without a paid plan it is then deleted; we email you 30, 7 and 1 day before the deletion. If you subscribe after the deletion, you start fresh. You can also delete all your data at any time from your manage link. We never change or delete your spreadsheet itself.

Stop trusting the green checkmark

Join the waitlist for early access.

Thanks! You're on the list. We'll email you when early access opens.