# Cool Analytics vs Seline

Canonical: https://inetgeek.com/compare/cool-analytics-vs-seline/

Every value below is read from Cool Analytics's and Seline's own documentation. See https://inetgeek.com/methodology/ for how.

## At a glance

| Criterion | Cool Analytics | Seline |
| --- | --- | --- |
| Free tier | No | No |
| Kind of free offer | Free trial | Free trial |
| What the free plan includes | A 7-day free trial of the paid plan with every feature; the pages describe no standing free plan. | A 7-day free trial of the Pro plan with every feature; the pages state there is no free plan. |
| Credit card to start | Yes | No |
| When the free offer ends | 7 days from the start of the trial; the card on file is then charged unless the plan is cancelled. | 7 days from the start of the trial. |
| Entry paid plan | From $3 a month, billed monthly, at 10k events a month on a single event-priced plan that carries every feature. | From $9 a month, billed monthly, at 10,000 events a month on a single Pro plan that carries every feature. |
| Pricing model | One plan with every feature, priced by monthly events: every pageview and every custom event sent counts as one. The price follows a traffic slider from 10k to 10M+ events a month, billed monthly or yearly (yearly gives two months free). | One Pro plan with every feature, priced by monthly events: pageviews and custom events share one limit, from 10,000 events at $9 to 20,000,000 at $649 a month, billed monthly or yearly (yearly gives two months free). Above 20,000,000 events the page says to contact them. |
| Sites or apps included | Grows with the monthly event size picked on the pricing slider; there are no separate plans. The default 500k-event size shows 20 websites and 5 team members, and the price table carries the count at each size. | The plan lists unlimited websites, and the FAQ says pricing is per website, with other sites linkable to one that has an active Pro subscription so they share its event limit. |
| Revenue attribution from a payment provider | Supported | Supported |
| Payment providers connected | Stripe, Dodo Payments, Polar, Paddle, Creem, Lemon Squeezy and Razorpay, plus an API for anything else. | Stripe and Polar connect directly with a read-only key; any other payment provider, Paddle and Lemon Squeezy named, sends revenue as custom events. |
| Retention window | 1 to 5 years of data history, rising with the monthly event size; the default 500k-event size shows 2 years. | Unlimited on the Pro plan, which is the only plan; the feature list says forever data retention. |
| Self-hostable | Not supported | Not supported |
| Works without cookies | Supported — A random visitor ID is kept in browser local storage | Supported — A cookie-based tracking mode exists as an optional setting and is off by default |
| GDPR / data residency | Data is stored in the EU (Germany) on Hetzner servers; support and maintenance access from India relies on Standard Contractual Clauses. | Seline is legally based in Poland, and its application servers and databases run on Hetzner in Germany; sub-processors listed are Hetzner, Stripe and Postmark. |
| Encryption at rest | The DPA lists encryption at rest only for payment provider keys, with HTTPS in transit everywhere; it does not say stored visit data is encrypted at rest. | The DPA says visitor data is encrypted in transit (HTTPS) and names encryption among its protection measures; it does not say stored data is encrypted at rest. |

## Where they differ

### What the free plan includes

- Cool Analytics: A 7-day free trial of the paid plan with every feature; the pages describe no standing free plan. ([source](https://coolanalytics.dev/terms))
- Seline: A 7-day free trial of the Pro plan with every feature; the pages state there is no free plan. ([source](https://seline.com/pricing))
- Lean: none. No documented basis to lean either way on this criterion.

### Credit card to start

- Cool Analytics: Yes ([source](https://coolanalytics.dev/terms))
- Seline: No ([source](https://seline.com/pricing))
- Lean: 22% Cool Analytics / 78% Seline — whether it is required at all (not requiring it is better). inetGeek's own reading, computed from the two values above by the rules at https://inetgeek.com/methodology/, not a provider claim.

### When the free offer ends

- Cool Analytics: 7 days from the start of the trial; the card on file is then charged unless the plan is cancelled. ([source](https://coolanalytics.dev/terms))
- Seline: 7 days from the start of the trial. ([source](https://seline.com/pricing))
- Lean: 50% Cool Analytics / 50% Seline — proportional to the documented capacity. inetGeek's own reading, computed from the two values above by the rules at https://inetgeek.com/methodology/, not a provider claim.

### Entry paid plan

- Cool Analytics: From $3 a month, billed monthly, at 10k events a month on a single event-priced plan that carries every feature. ([source](https://coolanalytics.dev/compare/plausible))
- Seline: From $9 a month, billed monthly, at 10,000 events a month on a single Pro plan that carries every feature. ([source](https://seline.com/pricing))
- Lean: 75% Cool Analytics / 25% Seline — inversely proportional to the documented price. inetGeek's own reading, computed from the two values above by the rules at https://inetgeek.com/methodology/, not a provider claim.

### Pricing model

- Cool Analytics: One plan with every feature, priced by monthly events: every pageview and every custom event sent counts as one. The price follows a traffic slider from 10k to 10M+ events a month, billed monthly or yearly (yearly gives two months free). ([source](https://coolanalytics.dev/))
- Seline: One Pro plan with every feature, priced by monthly events: pageviews and custom events share one limit, from 10,000 events at $9 to 20,000,000 at $649 a month, billed monthly or yearly (yearly gives two months free). Above 20,000,000 events the page says to contact them. ([source](https://seline.com/pricing))
- Lean: none. No documented basis to lean either way on this criterion.

### Sites or apps included

- Cool Analytics: Grows with the monthly event size picked on the pricing slider; there are no separate plans. The default 500k-event size shows 20 websites and 5 team members, and the price table carries the count at each size. ([source](https://coolanalytics.dev/))
- Seline: The plan lists unlimited websites, and the FAQ says pricing is per website, with other sites linkable to one that has an active Pro subscription so they share its event limit. ([source](https://seline.com/pricing))
- Lean: none. No documented basis to lean either way on this criterion.

### Payment providers connected

- Cool Analytics: Stripe, Dodo Payments, Polar, Paddle, Creem, Lemon Squeezy and Razorpay, plus an API for anything else. ([source](https://coolanalytics.dev/))
- Seline: Stripe and Polar connect directly with a read-only key; any other payment provider, Paddle and Lemon Squeezy named, sends revenue as custom events. ([source](https://seline.com/revenue-analytics))
- Lean: none. No documented basis to lean either way on this criterion.

### Retention window

- Cool Analytics: 1 to 5 years of data history, rising with the monthly event size; the default 500k-event size shows 2 years. ([source](https://coolanalytics.dev/compare/plausible))
- Seline: Unlimited on the Pro plan, which is the only plan; the feature list says forever data retention. ([source](https://seline.com/pricing))
- Lean: none. No documented basis to lean either way on this criterion.

### GDPR / data residency

- Cool Analytics: Data is stored in the EU (Germany) on Hetzner servers; support and maintenance access from India relies on Standard Contractual Clauses. ([source](https://coolanalytics.dev/dpa))
- Seline: Seline is legally based in Poland, and its application servers and databases run on Hetzner in Germany; sub-processors listed are Hetzner, Stripe and Postmark. ([source](https://seline.com/dpa))
- Lean: neither leads — both document the same answer.

### Encryption at rest

- Cool Analytics: The DPA lists encryption at rest only for payment provider keys, with HTTPS in transit everywhere; it does not say stored visit data is encrypted at rest. ([source](https://coolanalytics.dev/dpa))
- Seline: The DPA says visitor data is encrypted in transit (HTTPS) and names encryption among its protection measures; it does not say stored data is encrypted at rest. ([source](https://seline.com/dpa))
- Lean: neither leads — both document the same answer.

## Which should you choose?

Pick Cool Analytics if A founder who wants each payment from a connected processor — Stripe, Dodo Payments, Polar, Paddle, Creem, Lemon Squeezy or Razorpay — credited to the visit behind it, at a flat price by monthly events, from $3 a month for 10,000 events, with data hosted in Germany.

Pick Seline if A founder who wants Stripe or Polar payments credited to the visit behind them, alongside visitor journeys, funnels and profiles, on one plan priced by monthly events, from $9 a month for 10,000 events, with data hosted in Germany.

Consider something else: Cool Analytics — You need a product you can sign up to today: Cool Analytics shows a waitlist and says early access is opening soon, offers a 7-day trial with a card on file, is hosted only, and does not state a SOC 2 or similar audit.

Consider something else: Seline — You need a free plan or a self-hosted option: Seline offers only a 7-day trial with no card, is hosted only, and states no SOC 2 or similar audit. Its direct revenue connections are Stripe and Polar; any other processor has to send revenue as custom events from your own code.

## Documented by only one

One side documents these and the other does not. An absence is a missing source, not a stated "no" — except where a line says the other page was READ on a date and does not mention it, which is a sourced observation and the only one-sided case this site leans on.

- AI and search crawler tracking: Seline: Not supported — Counts visits referred from AI assistants as a channel; bot traffic is filtered out

## Questions this comparison answers

**Entry paid plan: Cool Analytics or Seline?**

Cool Analytics: From $3 a month, billed monthly, at 10k events a month on a single event-priced plan that carries every feature.
Seline: From $9 a month, billed monthly, at 10,000 events a month on a single Pro plan that carries every feature.

**Should I choose Cool Analytics or Seline?**

Pick Cool Analytics if A founder who wants each payment from a connected processor — Stripe, Dodo Payments, Polar, Paddle, Creem, Lemon Squeezy or Razorpay — credited to the visit behind it, at a flat price by monthly events, from $3 a month for 10,000 events, with data hosted in Germany.
Pick Seline if A founder who wants Stripe or Polar payments credited to the visit behind them, alongside visitor journeys, funnels and profiles, on one plan priced by monthly events, from $9 a month for 10,000 events, with data hosted in Germany.