Prices

Checking is free, unlimited, forever — and so are Quick protect, Undo and Remove. Pro adds the doing: the full setup, one-click fixes and contracts. Only the keeper pays; collaborators never need the add-on.

Free

£0 no account, no expiry

Unlimited Check this sheet
Every finding, click-to-cell, how to fix by hand
The protection audit
Quick protect: formulas and headers, warning only
Undo last setup and Remove guardrails
Checking against a contract someone else saved

Nothing to buy and nothing to enter. Install it and press Check.

Pro

£29 per year

Annual — £29/year (£2.42/mo, save £19) Monthly — £4/month

Everything in Free
Set up guardrails: locks, dropdowns, highlights, header notes, a Sheet rules tab
One-click fixes: typed-over formulas, blocked arrays, missing formulas, lost dropdowns, near-duplicate entries, shared filters
Check all tabs at once
Contracts: save, refresh, export, import, apply to every tab named “Week *”
Report tab and CSV
3 activations (Google accounts), across every spreadsheet in each
30-day full refund

Your key is shown on screen at the end of checkout, on a page you should keep. A copy is emailed to the address you paid with.

Schools, PTAs, clubs and registered charities: 50% off with EDU50.

What a licence covers

3 activations — 3 Google accounts. The licence works across every spreadsheet in each account.
Only whoever sets up and fixes the sheet needs it. A team's sheet usually needs one licence.
Cancel whenever. Guardrails already applied stay on and keep working — they are Sheets' own features. Check, Quick protect, Undo and Remove stay free.

Organisations: request an invoice

Schools, trusts and charities that buy by invoice rather than card: email support@appgarden.co.uk with the number of keepers who need it.

Refunds

Ask and you get one, within 30 days, no reason needed. Refund policy.

Already have a key?

In Google Sheets™, open Extensions › Shared Sheet Guardrails › Open guardrails, expand Enter a licence key at the bottom of the sidebar, paste it in and press Activate.

Prices include VAT where it applies; any other tax is calculated at checkout from your location. Paddle is the merchant of record.