Water LLM
Guides › vs Copper
Comparison
Water LLM or Copper: which Google Workspace CRM?
Both are built around Google Workspace. Copper is a hosted CRM for small teams that appears inside Gmail and Calendar through a Chrome extension, priced per seat. Water LLM is a Workspace add-on for one person that turns a Google Sheet in your own Drive into the CRM, with client-hour tracking, invoicing and a daily AI briefing included in one price.
Launching soon on the Google Workspace Marketplace. $30/month, or $300/year — one plan, every feature.
Side by side
| Water LLM | Copper | |
|---|---|---|
| Built for | One person: coaches, consultants, solopreneurs | Small and mid-sized teams |
| Where your CRM lives | A Google Sheet in your own Drive | Copper’s own platform |
| How it appears in Google | A Google Sheets add-on; briefings arrive in Gmail | A Chrome extension inside Gmail and Calendar |
| Price | $30/month, or $300/year. One plan, every feature. | Basic $29, Professional $69, Business $134 per seat per month (lower billed annually) |
| Contact limits | None set by Water LLM; Google’s Sheets limits apply | 2,500 on Basic, 15,000 on Professional, unlimited on Business |
| Client hours & packages | Counted from Google Calendar against contracted hours | No built-in hours-against-package tracking |
| Invoicing | PDF invoices from your template, reminder drafts, aged receivables | Through integrations with accounting apps |
| AI | Briefings, meeting prep, outreach and weekly recaps from your own history | AI email template generator and rewriter |
Copper details from Copper’s pricing page, checked October 2026. Prices and plans change — check theirs before you decide.
Which one is right for you?
Choose Water LLM if…
- You work alone and want one price with everything in it
- You bill by the hour or by package and want hours tracked from your calendar
- You want invoicing in the same place as your clients
- You want the CRM to be a spreadsheet you can extend with your own columns and formulas
Choose Copper if…
- A team needs to share contacts, pipelines and projects
- You want the CRM inside Gmail as a sidebar while you read email
- You need project management alongside the pipeline
- You need team reporting and permissions
Common questions
Aren’t both of these “CRMs for Google Workspace”?
Yes, in different ways. Copper is its own application that connects to your Google account; Water LLM runs inside Google Sheets, so the database itself is a file in your Drive.
Does Water LLM need a browser extension?
No. It is a Google Workspace add-on: install it from the Marketplace and it appears in the Google Sheets menu.
Can a small team use Water LLM?
It is built for one person’s practice. An assistant working in your Google account doesn’t change the price, but it is not a shared team CRM.
Where does my data live?
Your CRM is a spreadsheet in your own Google Drive, and the add-on runs under your own Google account. Water LLM’s servers hold your subscription record — your email address and billing status — not your contacts, emails or notes. For the AI features: Prompts and AI responses are never used to train, fine-tune or improve any AI model — a contractual commitment covering all Vertex AI customers. All processing happens inside Google Cloud; no third-party AI provider is involved, and Water LLM retains no copy. Google may briefly retain request data for abuse monitoring under its standard Vertex AI terms; that data is not used for training and Saville Coaching cannot access it. The full list is on Security.
Read more
Try the CRM that runs in your own Google Sheet.
Join the waitlist and we’ll email you the day Water LLM is on the Google Workspace Marketplace.