Knock alternatives
Providers that compete with Knock on at least one of: Notifications
Notification infrastructure with workflow engine.
Switching as SaaS product teams
A SaaS product sends on behalf of its customers, so the deciding factors are tenant isolation, whether suppressions can be scoped rather than global, and whether support can answer why one specific account did not receive one specific email. Lifecycle automation and transactional sending usually need to coexist.
Knock does not cover operating track record, and none of the alternatives below close that gap either. If it is a hard requirement, the shortlist has to widen beyond this category.
ranked for SaaS product teams
- 01
Courier
NotificationsNotification infrastructure with visual journeys.
Matches Knock on every priority weighed here, so the decision is price and preference.
10,000 sends/mo · $95/mo (Business) - 02
Novu
Notifications Self-hostedOpen-source notification infrastructure.
Matches Knock on every priority weighed here, so the decision is price and preference.
30,000 events/mo on cloud, free self-hosted · $250/mo (Business cloud) - 03
Engagespot
NotificationsMulti-channel notification infrastructure with predictable event pricing.
Matches Knock on every priority weighed here, so the decision is price and preference.
10,000 event triggers/mo on Launch · $250/mo Growth for 250,000 event triggers - 04
SuprSend
NotificationsNotification workflow API with preferences, batching, and multi-tenant options.
Matches Knock on every priority weighed here, so the decision is price and preference.
10,000 notifications/mo · $110/mo Essentials for 50,000 notifications - 05
MagicBell
NotificationsNotification inbox and multi-channel delivery platform.
Gives up multi-tenant support against Knock and adds nothing on these priorities.
1,000 deliveries/mo on Builder · $249/mo Startup for 50,000 deliveries
Knock and its alternatives, side by side
Columns are the priorities SaaS product teams weigh, in order. Knock is the first row so the trade in each direction is readable at a glance.
| Provider | Multi-tenant | Event stream | Suppressions API | Operating since | Scheduling | Best published rate per 1,000 | Webhooks |
|---|---|---|---|---|---|---|---|
| Knock | Yes | Yes | Yes | 2021 | Yes | Tiers not published in comparable form | Yes |
| Courier | Yes | Yes | Yes | 2019 | Yes | Tiers not published in comparable form | Yes |
| Novu | Yes | Yes | Yes | 2021 | Yes | Tiers not published in comparable form | Yes |
| Engagespot | Yes | Yes | Yes | Not published | Yes | Tiers not published in comparable form | Yes |
| SuprSend | Yes | Yes | Yes | Not published | Yes | Tiers not published in comparable form | Yes |
| MagicBell | No | Yes | Yes | Not published | Yes | Tiers not published in comparable form | Yes |
Nothing on this list is a clean upgrade: every alternative trades something away against Knock on these priorities, so the choice depends on which of them the build actually needs.