Courier vs OneSignal
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
Both sides assessedCourier compared with OneSignal
OneSignal includes delivery and gives away unlimited mobile push, and it is operable by a growth team without engineering after the SDK lands. Courier delivers nothing itself and cannot be used without engineering. If your problem is reaching consumers on their phones with campaigns, OneSignal is both cheaper and better suited; if your problem is orchestrating product notifications across providers you already pay for, Courier is the right layer.
OneSignal compared with Courier
Courier routes notifications through providers you already pay for at $0.005 a send and is designed to be embedded in an application, with an inbox component, a preference center, and template design for developers. OneSignal owns the delivery infrastructure itself and gives away unlimited mobile push. Choose Courier if you want an orchestration layer over your existing SendGrid and Twilio accounts; choose OneSignal if you want push done properly without assembling a stack.
Choose Courier if
Engineering teams at product companies who already pay for SendGrid, Twilio, or Firebase and want an orchestration layer over them, particularly mixed teams where a non-developer needs to own the message content without filing tickets.
Choose OneSignal if
Consumer mobile apps, marketplaces, media sites, and web publishers whose primary channel is push notifications, especially teams that want serious push infrastructure and a workable email and in-app layer for free or for tens of dollars a month rather than hundreds.
Side by side
13 attributes| Attribute | Courier | OneSignal |
|---|---|---|
| Category | Automation | Automation |
| Starting price | $0 (Developer, 10,000 sends per month), then $0.005 per send (free plan available) | $0 (Free), then $19 per month plus usage (Growth) (free plan available) |
| Pricing model | Pure usage-based pricing on notifications sent, with no per-seat fee and no channel add-on charges, plus a free monthly allowance and a quoted enterprise tier with volume discounts. | Per-channel usage metering rather than a single contact-count meter: mobile push billed per monthly active user, web push per subscriber, email per thousand sends, with a small platform fee on Growth and quoted annual contracts above it. |
| Free plan | Developer includes 10,000 notification sends per month across email, push, SMS, in-app, and chat. | Unlimited mobile push sends, web push up to 10,000 subscribers per send, 10,000 email sends per month, and one active in-app message, with no expiry. |
| Free trial | No time-limited trial; the Developer plan is permanently free within its send allowance | No fixed trial; the permanently free plan is the evaluation path |
| Best for | Engineering teams at product companies who already pay for SendGrid, Twilio, or Firebase and want an orchestration layer over them, particularly mixed teams where a non-developer needs to own the message content without filing tickets. | Consumer mobile apps, marketplaces, media sites, and web publishers whose primary channel is push notifications, especially teams that want serious push infrastructure and a workable email and in-app layer for free or for tens of dollars a month rather than hundreds. |
| Setup time | An afternoon to a first notification in production: connect a provider, design a template, call the API. Migrating an existing notification service takes one to two sprints and is usually done one notification type at a time. | Under an hour for web push (a script tag) and a few hours for a mobile app, most of which is spent on APNs certificates and Firebase configuration rather than on OneSignal itself. Journeys can be running the same day. |
| Learning curve | Low. The core concepts (providers, templates, routing, preferences, automations) map closely to how teams already think about notifications, and the visual designer means content people onboard in minutes rather than days. | Low for push and in-app, moderate for Journeys. The tag model is easy to grasp but easy to abuse, and teams who tag indiscriminately end up with segmentation logic nobody can audit six months later. Agree a tag naming convention before you start. |
| Platforms | Web dashboard, REST API, React and JavaScript components, iOS, Android, React Native, and Flutter SDKs | Web app, Android SDK, iOS SDK, Flutter, React Native, Expo, Unity, Web push script, REST API |
| Compliance | SOC 2, GDPR | SOC 2, GDPR, CCPA |
| Founded | 2019 | 2014 |
| Headquarters | San Francisco, California, United States | San Mateo, California, United States |
| Ownership | Venture-backed | Venture-backed |
Strengths and limitations
Courier
Strengths
- The simplest pricing in the category: no seats, no channel fees, no contact meter, just $0.005 a send with 10,000 free every month.
- Fifty-plus provider integrations with your own credentials, which means no vendor lock-in, no reputation rebuild, and no renegotiated contracts.
- The visual template designer with multi-channel preview on one canvas is the friendliest content surface among the developer-first notification tools.
- Batching, throttling, delays, and conditions cover the notification-fatigue problem that most in-house implementations get wrong.
Limitations
- Nothing works without engineering; the API call has to come from your application, so a marketer cannot get value alone.
- Delivery is not included, so the sticker price understates the real cost and you own deliverability, domain authentication, and list hygiene entirely.
- Multi-tenancy is less developed than Knock's, which matters for B2B products giving each customer organization its own notification configuration.
- Role-based access control and EU data residency are Enterprise-only, so a European mid-market buyer with residency requirements cannot self-serve.
OneSignal
Strengths
- The best push implementation in this category by a wide margin, covering mobile, web, rich media, per-platform payload control, confirmed delivery reporting, and iOS Live Activities.
- A permanently free plan with unlimited mobile push, which removes the budget conversation entirely for early-stage consumer apps.
- Per-channel usage metering means a big dormant contact database costs nothing, the opposite of profile-based platforms where dead contacts are billable.
- First-party SDKs for Android, iOS, Flutter, React Native, Expo, and Unity that handle the permission and certificate plumbing teams usually get wrong.
Limitations
- SMS and RCS are locked behind an annual quoted Professional contract, so the cheapest self-serve path to SMS is a different vendor entirely.
- Segmentation is tag, session, and device based rather than a full behavioral event store, so sequence-dependent targeting is harder here than in Customer.io or Vero.
- No native account or company object, which makes B2B SaaS lifecycle logic awkward and rules the platform out for anyone whose messaging is organization-shaped.
- Email is a competent secondary channel, not a strong one; template tooling and list management are thinner than in email-first products.
Pricing compared
Courier
Pure usage-based pricing on notifications sent, with no per-seat fee and no channel add-on charges, plus a free monthly allowance and a quoted enterprise tier with volume discounts.
- Developer$0
- Business$0.005
- EnterpriseCustom
Courier's pricing is the easiest to reason about in this whole category and, at low to moderate volume, extremely fair. Ten thousand free sends a month covers a real early-stage product, and $0.005 a send with no seat fees and no channel charges means the bill scales exactly with usage and nothing else. Against Knock, Courier is dramatically cheaper in the 10,000 to 50,000 message band, where Knock's $250 floor bites hard. The break-even flips at high volume: 400,000 sends costs $2,000 on Courier and would be an Enterprise negotiation on either platform. What you are not getting for the money is delivery, deliverability, or any marketing capability, and the honest total cost of ownership always includes the provider invoices sitting underneath.
OneSignal
Per-channel usage metering rather than a single contact-count meter: mobile push billed per monthly active user, web push per subscriber, email per thousand sends, with a small platform fee on Growth and quoted annual contracts above it.
- Free$0
- Growth$19
- ProfessionalCustom
- EnterpriseCustom
Judged per dollar, OneSignal is the cheapest serious multi-channel platform a small company can buy, and by some distance. Unlimited mobile push at $0 is not a loss leader trick, it is the product, and Growth at $19 plus a per-MAU rate keeps a 5,000-user app under $100 a month with email, in-app, and Journeys included. What you are not buying is a data platform: segmentation is tag and session based rather than a real behavioral event store, there is no account model, and email is a channel rather than a deliverability practice. The value is exceptional if push is your primary channel and merely fine if it is your third.
Editorial verdict on each
Courier
Courier is the notification orchestration layer to pick when you want the least complicated bill and the friendliest content surface. Ten thousand free sends a month is enough for a real early-stage product, $0.005 a send with no seats and no channel fees is the most predictable pricing in this category, and the visual designer with multi-channel preview means the person writing the notification does not need an engineer to publish it. Set against Knock, its nearest rival, Courier wins on price in the low and middle volume bands and on design ergonomics, and loses on multi-tenancy depth and workflows-as-code discipline. The hard limits are structural rather than fixable: delivery is not included, deliverability is entirely your problem, there is no marketing capability, and the per-send rate makes broadcast sending economically silly. For a five-person startup whose product needs to notify people without annoying them, Courier is the cheapest sensible starting point in this batch. For a five-person startup whose problem is lifecycle marketing, it is the wrong shelf entirely.
Read the full Courier profileOneSignal
OneSignal is the correct first choice for any small company whose primary channel is push. Nothing else in this category gives away unlimited mobile push, and nothing else handles APNs, FCM, web push, and Live Activities with this much per-platform care. Growth at $19 plus $0.012 per monthly active user keeps a real consumer app under $100 a month with Journeys, in-app messaging, and email included, and the per-channel meter means a large dormant install base costs you nothing. The limits are equally clear: segmentation is tags and sessions rather than a behavioral event store, there is no account model for B2B, email is adequate rather than good, and SMS demands an annual quoted contract. Buy it for push, keep it for in-app and email, and pair it with something else if your lifecycle logic is really about product events or company records.
Read the full OneSignal profileCourier profile last reviewed 2026-08-22; OneSignal last reviewed 2026-08-22. Pricing is compiled from public sources and can change without notice. See our methodology.