Dittofeed vs Knock
An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.
Still shortlisting? Browse the best in Marketing Automation and the best in Notification Infrastructure for every option we track, with award winners called out.
The short answer
Editorial assessmentKnock compared with Dittofeed
Both are developer-friendly and both let you keep control, but Dittofeed is open-source marketing automation (journeys, segments, templates, bring your own ESP) aimed at lifecycle campaigns, self-hostable free or cloud from $75 a month. Knock is product notification infrastructure aimed at in-app feeds and transactional workflows. A team wanting to run onboarding email campaigns should take Dittofeed; a team wanting a notification feed with digests and preferences should take Knock.
Choose Dittofeed if
Engineering-led teams that want customer engagement automation on their own terms: self-hosted for data control, wired to their existing ESP and warehouse, or embedded white-label inside their own SaaS product.
Choose Knock if
Product and engineering teams at SaaS companies who need real product notifications (in-app feed, digests, preference centers, per-tenant configuration) and want the workflow logic owned by a platform a PM can edit rather than by application code an engineer has to redeploy.
Side by side
13 attributes| Attribute | Dittofeed | Knock |
|---|---|---|
| Category | Automation | Notifications |
| Starting price | $0 self-hosted; $75/mo Cloud Pro | $0 (Developer), then $250 per month (Starter) |
| Pricing model | Open-core: free MIT-licensed self-hosting, a usage-based managed cloud, and quoted enterprise licenses for multi-tenant, white-label, and embedded use. | Usage-based on messages sent, with a separate meter for Guide active users and AI agent credits, plus a large free tier and a single published paid plan before enterprise contracts. |
| Free plan | Self-hosting is free at any scale under the MIT license; no free tier on the managed cloud. | Developer includes 10,000 messages a month, 500 Guide active users, 500 AI agent credits, unlimited workflows, unlimited channels, unlimited team members, batching, delays, broadcasts, multi-tenancy, and Google SSO. |
| Free trial | 14 days (cloud) | No time-limited trial; the Developer plan is permanently free |
| Best for | Engineering-led teams that want customer engagement automation on their own terms: self-hosted for data control, wired to their existing ESP and warehouse, or embedded white-label inside their own SaaS product. | Product and engineering teams at SaaS companies who need real product notifications (in-app feed, digests, preference centers, per-tenant configuration) and want the workflow logic owned by a platform a PM can edit rather than by application code an engineer has to redeploy. |
| Setup time | Cloud: an afternoon to connect an ESP and start a journey, then days to wire real data via API, Segment, or Polytomic. Self-hosted: add deployment and configuration time, realistic at days to a couple of weeks depending on your infrastructure standards. | A day to a first workflow in production for a competent backend engineer, and one to three sprints to migrate an existing homegrown notification service. The in-app feed component is typically the fastest visible win. |
| Learning curve | Low for the journey canvas itself; moderate overall because data wiring, Liquid/MJML templating, and provider configuration are inherently technical. | Low for engineers, moderate for product people. The concepts (workflows, recipients, tenants, channels, preferences) are clean, but the mental model of moving decision logic out of application code into a workflow platform takes a team a couple of weeks to internalize. |
| Platforms | Web app (cloud or self-hosted), REST API, Docker-based self-host deployment | Web dashboard, REST API, CLI, React and JavaScript components, iOS, Android, React Native, and Flutter clients, MCP server |
| Compliance | No published SOC 2 or ISO certification; self-hosting keeps data entirely within your own infrastructure and compliance boundary | SOC 2, GDPR, CCPA, HIPAA with a BAA on Enterprise |
| Founded | 2022 | 2021 |
| Headquarters | Los Angeles, California, US | New York, New York, United States |
| Ownership | Venture-backed startup (Y Combinator) | Venture-backed |
Strengths and limitations
Dittofeed
Strengths
- Only credible open-source option in the category: MIT-licensed, self-hostable, inspectable, with vendor lock-in explicitly designed out.
- Self-hosting solves data-residency and compliance problems by construction, which no amount of certification paperwork from SaaS rivals fully matches for regulated teams.
- Embedded components and white-labeling serve a use case, messaging automation inside your own SaaS, that closed competitors do not address at all.
- Bring-your-own-ESP architecture means no forced migration of delivery infrastructure and no markup on sending; it composes with SendGrid, SES, Postmark, Resend, SMTP, and Twilio.
Limitations
- Two-founder company: roadmap velocity, support depth, and long-term durability all carry early-stage risk that no license model removes.
- No delivery layer of its own; deliverability, warm-up, and sender reputation are entirely your problem via your chosen ESP.
- Feature surface trails mature rivals: no native push or in-app SDK channel (webhooks stand in), no lead scoring, no built-in forms, thin analytics beyond branch metrics.
- No published SOC 2 or ISO certification; the compliance story is 'self-host it,' which only helps buyers with infrastructure teams.
Knock
Strengths
- Batching, digests, preference centers, and multi-tenancy are all first-class, and they are exactly the four things engineering teams build worst when they build them in-house.
- The free Developer tier is extraordinarily generous, including unlimited workflows, unlimited channels, unlimited team members, and multi-tenancy at $0.
- Bring-your-own-provider means you keep your sending reputation, your existing SendGrid or Twilio contracts, and your negotiated rates.
- Workflows as code with CLI, version control, CI validation, environments, and one-click rollback, which makes notification changes a normal part of the software lifecycle instead of a risk.
Limitations
- Completely unusable without engineering; there is no path where a marketer signs up and gets value, because nothing happens until code calls the API.
- The pricing cliff from $0 to $250 a month with no intermediate plan penalizes exactly the small companies the free tier attracted.
- Guides are metered separately on active users, so the in-product messaging feature has its own cost curve that is easy to miss when budgeting.
- You still pay for delivery separately, and you still own deliverability, list hygiene, and domain authentication yourself.
Pricing compared
Dittofeed
Open-core: free MIT-licensed self-hosting, a usage-based managed cloud, and quoted enterprise licenses for multi-tenant, white-label, and embedded use.
- Self-hosted (open source)$0
- Cloud Pro$75
- Enterprise (self-hosted or cloud)Custom
Priced as software, Dittofeed is nearly unbeatable: $0 self-hosted or $75/month managed for orchestration that structurally resembles what Braze and Customer.io charge hundreds to thousands for, with per-user overage rates an order of magnitude below Customer.io's $0.009 profile overage. Priced as a total system, the math is subtler: you are separately paying an ESP, possibly Twilio, and, if self-hosting, your own engineers' hours. For teams that already own those pieces, Dittofeed adds the missing orchestration layer at near-zero marginal cost; for teams that own none of them, an integrated platform can genuinely be cheaper in practice.
Knock
Usage-based on messages sent, with a separate meter for Guide active users and AI agent credits, plus a large free tier and a single published paid plan before enterprise contracts.
- Developer$0
- Starter$250
- EnterpriseCustom
Knock is priced as infrastructure, and the honest comparison is not against Mailchimp but against the salary cost of the engineer who would otherwise own your notification service. On that basis the free tier is remarkable value and Starter at $250 is fair, since 50,000 messages with batching, preference centers, in-app feed, and multi-tenancy is a quarter of engineering work you no longer do. The weakness is the plan gap: a team sending 15,000 messages a month is paying $250 for capability it barely uses, and the separate Guides meter means the sticker price understates the cost of using the whole product. Add your own provider bills on top and Knock is never the cheapest line on the invoice, but it is usually the one that saves the most.
Editorial verdict on each
Dittofeed
Dittofeed is the category's infrastructure option, and for the right buyer that is exactly the point: engineering-led teams get Braze-shaped orchestration as auditable open source, regulated companies get data control by construction, and SaaS vendors get an embeddable messaging engine nobody else offers. Judged as a marketer-facing SaaS it loses to everything else in this category on polish, channels, and hand-holding; judged as open infrastructure it has no direct competitor at all. Buy it for the license, the escape hatch, and the embedding story, and staff accordingly; if no engineer will own it, buy something finished instead.
Read the full Dittofeed profileKnock
Category LeaderKnock is the right purchase when your notification problem is a product problem rather than a marketing problem. If people are complaining about email volume, if a preference center keeps slipping down the roadmap, if enterprise customers want Slack delivery, or if an engineer already owns a homegrown notification service they resent, this is the layer to buy and the free Developer tier is generous enough to prove it in a weekend. The reasons to walk away are equally clear: there is no marketing surface, nothing works without engineering, you still pay your own providers, and the leap from $0 to $250 a month with nothing in between is genuinely painful for a small team. For a five-person startup, Knock is the first thing to reach for only if you are shipping a product with an in-app notification feed. If your immediate need is onboarding emails and lifecycle campaigns, start with Customer.io, Bento, or Dittofeed and add Knock later when the product notifications become their own problem.
Read the full Knock profileDittofeed profile last reviewed 2026-09-26; Knock last reviewed 2026-09-07. Pricing is compiled from public sources and can change without notice. See our methodology.
The best in Marketing Automation
16 trackedMarketing automation platforms trigger messages and campaigns from customer behavior, moving people through lifecycle stages across email, in-app, SMS, and push without manual sends.
The category default: forms, email, automation, and reporting on one record, with an ecosystem nothing else matches.
The whole HubSpot shape for the price of a single HubSpot seat.
Founder-run Bento passed 1B emails a month in 2025 while adding SOC 2, MCP integration, and AI sequence drafting, growth the big suites should notice.
Interactive AMP email that completes the action inside the inbox, removing the landing page from the funnel entirely.
First flows run the same day on imported contacts, and the gentlest flow builder in the category lets teams operate without a dedicated ops person.
The best in Notification Infrastructure
9 trackedNotification infrastructure platforms sit between an application and its delivery providers, turning one API call into orchestrated in-app, email, push, SMS, and chat notifications with batching, digests, preference centres, and per-tenant routing, so product teams stop rebuilding that logic in application code.
Batching, preference centres, and multi-tenancy are first-class rather than roadmap items, and workflows-as-code with environments and rollback makes a notification change a normal deploy.
$30 a month for 30,000 workflow runs, or nothing at all self-hosted, against a category whose next cheapest real plan is $110 and whose leader jumps from free to $250.
Founded in 2022 on roughly $1M, SuprSend shipped nine channels on the free tier, CLI environment promotion, an MCP server, and an Agent SDK while larger rivals were still writing about them.
The delivery planner turns cross-channel escalation into configuration: try in-app, fall back to email only if it goes unread, set as a rule rather than written as application code.
A visual designer that previews every channel on one canvas, and a bill that is $0.005 a send with no seats or channel fees, let a non-developer own the message end to end.
Frequently asked questions
6 questionsWhat is the difference between Dittofeed and Knock?
Both are developer-friendly and both let you keep control, but Dittofeed is open-source marketing automation (journeys, segments, templates, bring your own ESP) aimed at lifecycle campaigns, self-hostable free or cloud from $75 a month. Knock is product notification infrastructure aimed at in-app feeds and transactional workflows. A team wanting to run onboarding email campaigns should take Dittofeed; a team wanting a notification feed with digests and preferences should take Knock.
Is Dittofeed or Knock cheaper?
Dittofeed starts at $0 self-hosted; $75/mo Cloud Pro. Knock starts at $0 (Developer), then $250 per month (Starter). The billing models differ, so the entry price is rarely the whole cost. Dittofeed pricing model: Open-core: free MIT-licensed self-hosting, a usage-based managed cloud, and quoted enterprise licenses for multi-tenant, white-label, and embedded use. Knock pricing model: Usage-based on messages sent, with a separate meter for Guide active users and AI agent credits, plus a large free tier and a single published paid plan before enterprise contracts.
Does Dittofeed or Knock have a free plan?
Dittofeed has a free plan. Self-hosting is free at any scale under the MIT license; no free tier on the managed cloud. Trial terms: 14 days (cloud). Knock has a free plan. Developer includes 10,000 messages a month, 500 Guide active users, 500 AI agent credits, unlimited workflows, unlimited channels, unlimited team members, batching, delays, broadcasts, multi-tenancy, and Google SSO. Trial terms: No time-limited trial; the Developer plan is permanently free.
Who should choose Dittofeed?
Engineering-led teams that want customer engagement automation on their own terms: self-hosted for data control, wired to their existing ESP and warehouse, or embedded white-label inside their own SaaS product.
Who should choose Knock?
Product and engineering teams at SaaS companies who need real product notifications (in-app feed, digests, preference centers, per-tenant configuration) and want the workflow logic owned by a platform a PM can edit rather than by application code an engineer has to redeploy.
What are the best alternatives to Dittofeed and Knock?
SaaSTracker profiles 16 products in Marketing Automation. The Summer 2026 awards in the category went to HubSpot Marketing Hub (Category Leader), EngageBay (Best Value), Bento (Momentum). SaaSTracker profiles 9 products in Notification Infrastructure. The Summer 2026 awards in the category went to Novu (Best Value), SuprSend (Momentum), MagicBell (Innovation). Every profile is compiled from primary sources, so a shortlist can be built from pricing, limitations, and fit rather than from star ratings.
