Compare · ChartMogul
Updated September 2026
Keep vs ChartMogul: metrics you defend, or alerts you act on.
ChartMogul turns billing data into subscription metrics you can defend to the dollar. Keep watches for the paying customers who are drifting away and tells your team in Slack, ranked by revenue at stake.
Side by side
| — | Keep | ChartMogul |
|---|---|---|
| Core job | Churn risk from revenue crossed with product usage | Subscription analytics and revenue reporting |
| Product usage data | Native PostHog, or Keep's activity API | Through Segment or custom attributes via API |
| At-risk alerts | Automatic, ranked by MRR at stake | On-demand AI health summary per customer |
| Slack | Usage-risk and billing alerts | Billing events: new business, expansion, churn |
| Dunning / cancel flows | No | No |
| Billing sources | Stripe, AbacatePay, Asaas | 30+, including Stripe, Chargebee, Recurly, Paddle, app stores |
| Pricing | From $39/month (Starter), by monitored MRR; every feature in every plan | Free under $120K ARR; Pro from $1,188/year, billed annually |
When ChartMogul is the better fit
If your board and finance team need subscription metrics that reconcile exactly — across many billing systems, with exports to a data warehouse — ChartMogul is built for that. Its free plan also covers companies under $120K ARR.
When Keep is the better fit
If you already know your MRR and want to know which specific customers to call this week, Keep is built for that. It reads usage from PostHog without a Segment pipeline, flags paying accounts that dropped usage, went silent, or never activated, and posts each one to Slack with the MRR at stake, the owner from HubSpot, and open Intercom conversations.
Questions
- Can I use Keep and ChartMogul together?
- Yes. ChartMogul for reporting, Keep for usage-based alerts. Both read Stripe without changing it.
- Do I need Segment to use Keep?
- No. Keep connects to PostHog directly, or accepts events from your backend through its activity API.
Other comparisons
Turn usage into a list of calls.
Connect Stripe and PostHog and see which paying accounts went quiet.