A GrowPanel alternative with proof and a customer hub
GrowPanel and sumwerk are both made and hosted in the European Union and both start with MRR from your billing system. GrowPanel goes wide on analytics features. sumwerk goes deep on one billing system, on proving its numbers, and on the work with customers.
What this page says about GrowPanel comes from their own public pages, read on September 21, 2026 and listed below. Something out of date? Tell us and we correct it.
Start free Free during early access. Read-only Stripe key, runs next to what you use today.
The short answer
Choose sumwerk if
- You bill through Stripe and want each movement tied to its Stripe invoice or event, a daily check against Stripe, and closed months
- You want leads, contacts, notes, calls, tasks, sequences and automations with the revenue
- You want at-risk rules of your own, sandboxes, and an MCP server
Choose GrowPanel if
- You bill through Chargebee or Recurly
- You want MRR forecasting, cashflow reporting or AI summaries of cancellation comments
- You want alerts in Slack or Teams and a mobile view today
sumwerk and GrowPanel, side by side
| sumwerk | GrowPanel | |
|---|---|---|
| Billing systems | Stripe | Stripe, Chargebee, Recurly, custom through API |
| Based and hosted | Germany | Copenhagen, Denmark; EU hosted |
| Evidence per movement | Each movement names its cause and the Stripe invoice or event ids | Not stated on the page we read |
| Check against Stripe | After every sync, shown on the overview | Not stated on the page we read |
| Closed months and restatements | Yes | Not stated on the page we read |
| Forecasting | No | Yes |
| Cashflow reporting | No | Yes: revenue, refunds, fees, discounts, exchange rates, taxes |
| Cancellation insights | No | Yes, with AI summaries of free-text comments |
| Segments | Plan, billing interval, owner, tag, country, any attribute you send | 20+ filters and segments, cohorts |
| Customer work | Customers beyond Stripe, contacts, notes, calls, tasks, sequences, automations | Not stated on the page we read |
| API and integrations | JSON API, webhooks, MCP server, Plain | REST API, Zapier, Slack and Teams alerts |
| Price | Free during early access | Free up to $200k ARR; $49, $99 and $199 per month (billed annually) up to $1M, $2M and $20M ARR |
“Not stated” means we did not find it on the pages we read; it does not mean the product cannot do it.
Where GrowPanel is stronger
- More billing systems, forecasting, cashflow reporting and cancellation insights.
- Alerts in Slack and Teams, and a published price list.
What sumwerk does differently
Proof first
sumwerk's centre is that a number can be checked: the Stripe reference on every movement, the daily comparison with Stripe's invoices, and restatements when a closed month changes.
The customer hub
Leads and trials from your product, several ids and several Stripe customers per company, owners, notes, call logs, tasks, email sequences and automations, all writable through the API.
Built to be connected
Sandboxes with their own tokens for staging and every developer, signed webhooks, and an MCP server so that an AI assistant can answer questions about your customers from live data.
Questions
- Both are European. Is there a difference in data location?
- Both state that they host in the European Union. sumwerk's servers are in Germany.
- Can I try both?
- Yes. sumwerk reads Stripe with a restricted, read-only key and changes nothing.
Sources, read on September 21, 2026
- GrowPanel pricing https://growpanel.io/pricing
GrowPanel is a name of its owner, used here to describe their product. sumwerk is not affiliated with them.