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.
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 | Automation |
| Starting price | $0 self-hosted; $75/mo Cloud Pro (free plan available) | $0 (Developer), then $250 per month (Starter) (free plan available) |
| 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
Knock 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 2026-08-22; Knock last reviewed 2026-08-22. Pricing is compiled from public sources and can change without notice. See our methodology.