Ably
Messaging & Realtime
Messaging & Realtime
Open-source notification infrastructure. Free cloud plan: 10,000 workflow runs a month, no card.
Email, in-app, SMS, chat and push all come from one workflow editor. Novu is notification infrastructure for email, in-app, SMS, chat and push, with a workflow editor and an embeddable inbox component. Its pricing page lists a Free plan at $0 with 10,000 workflow runs a month, all five channels, US and EU data residency, up to 20 workflows, 2 environments, 24-hour activity feed retention and up to 3 team members, and says no credit card is required. Pro starts at $30 a month with 30,000 runs and extra runs at $1.20 per 1,000. G2 describes the core as MIT-licensed with 38,600+ GitHub stars and shows 4.6 from 22 reviews. Reddit threads about self-hosting split between people who found the stack ran well and commenters who say you pay for supported hosting when revenue depends on it.
| Price | $0 a month, no credit card required (Novu's pricing page) |
| Workflow runs | 10,000 a month |
| Channels | Email, in-app, SMS, chat and push |
| Data residency | US and EU |
| Workflows | Up to 20 |
| Environments | 2 (dev and prod) |
| Activity feed retention | 24 hours |
| Team members | Up to 3 |
| Self-hosting | MIT-licensed core can be self-hosted with Docker Compose per G2; the pricing page lists self-hosted deployment under Enterprise |
Last sniffed Oct 2, 2026. Always confirm on the official pricing page.
A free workflow run count is the limit that matters most. The Free plan gives 10,000 workflow runs a month and keeps your activity feed for only 24 hours, so you cannot look back at last week's sends. The open-source story needs a close read. G2's product text says the MIT-licensed core can be self-hosted through Docker Compose with full feature parity. Novu's pricing page lists self-hosted deployment under Enterprise, so confirm in the docs which features you get when you self-host. The no-card statement is Novu's own. I did not confirm commercial-use terms for the free plan. The pricing FAQ answers were collapsed in the version I read.
30,000+ workflow runs, 7-day activity feed retention, Novu branding removal, advanced email editor, higher rate limits. Extra runs are $1.20 per 1,000.
250,000+ runs, up to 10 environments, 90-day retention, unlimited team members, more workflows, RBAC and 600 RPS triggers.
10M+ runs, HIPAA BAA, SSO (SAML or OIDC), SCIM, advanced data residency regions, a private Slack or Teams channel and self-hosted deployment options.
10,000 workflow runs a month, across email, in-app, SMS, chat and push.
Novu's pricing page says no credit card is required.
G2 describes an MIT-licensed core that can be self-hosted with Docker Compose. The pricing page lists self-hosted deployment under Enterprise, so read the docs for your case.
Pro starts at $30 a month for 30,000 runs, Team at $250 for 250,000 runs, and extra runs are $1.20 per 1,000.
G2 shows 4.6 from 22 reviews.
Pricing page read; FAQ answers were collapsed. G2 summary from a search excerpt and the product page. Reddit threads read as excerpts (one older). Commercial terms not checked.
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