Liveblocks 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.
Still shortlisting? Browse the best in Notification Infrastructure for every option we track, with award winners called out.
The short answer
Both sides assessedLiveblocks compared with OneSignal
Barely competitors. OneSignal owns mobile and web push with its own delivery included and a free tier that carries real volume, sold to growth teams running campaigns. Liveblocks has web push only, no campaign tooling, no segmentation, and exists to tell people what happened inside a document they were working on. A product that needs to reach a phone uses OneSignal; a product that needs an unread badge next to a comment uses Liveblocks. Running both is normal and they never touch.
OneSignal compared with Liveblocks
These two never really compete. OneSignal is push at scale for growth teams, with mobile and web push, segmentation, campaigns, and delivery included free at meaningful volume. Liveblocks has web push only, no campaign tooling and no segmentation, and exists to tell somebody that a colleague mentioned them in a document. A mobile product reaching phones uses OneSignal. A collaborative web product with comment threads uses Liveblocks, and plenty of teams run both without the two ever touching.
Choose Liveblocks if
Product teams adding comments, mentions, or multiplayer editing to a web application who need the notification tray, the read state, the per-user channel settings, and the email digest hook that come with that work, and who are building in React.
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
16 attributes| Attribute | Liveblocks | OneSignal |
|---|---|---|
| Category | Notifications | Notifications |
| Starting price | $0 (Free), then $30 per month (Pro), or $25 per month billed annually | $0 (Free), then $19 per month plus usage (Growth) |
| Pricing model | A credit balance per month shared across every meter (collaboration minutes, comments, custom notifications, and realtime storage), with a free plan, two published paid tiers, and pay-as-you-go rates once the credits are spent. | 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 | Free includes 200 custom notifications a month, unlimited collaboration notifications, all six notification channels, notification settings, batching, pre-built components, 3,000 collaboration minutes, 200 comments, 3M realtime storage updates, 1 GB of realtime storage, 3 dashboard seats, and 10 simultaneous connections per room. | 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 Free plan is permanent | No fixed trial; the permanently free plan is the evaluation path |
| Best for | Product teams adding comments, mentions, or multiplayer editing to a web application who need the notification tray, the read state, the per-user channel settings, and the email digest hook that come with that work, and who are building in React. | 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 | A day to a working inbox if you are already using Comments, since the notifications generate themselves and the tray is a component. Two to four weeks for a full build that adds collaborative editing, custom notification kinds, and an email digest service you write yourself. | 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 | Moderate. Rooms, projects, threads, inbox notifications, and notification settings are clean concepts, but the split between what Liveblocks stores and what your backend still owns takes a little while to internalise, and the credit model needs one careful read before anyone forecasts a bill. | 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 React UI packages, JavaScript client, Node.js server library, Webhooks | Web app, Android SDK, iOS SDK, Flutter, React Native, Expo, Unity, Web push script, REST API |
| Compliance | SOC 2, GDPR, HIPAA with a business associate agreement (paid add-on) | SOC 2, GDPR, CCPA |
| Founded | 2021 | 2014 |
| Headquarters | Fully remote; Liveblocks Inc. is registered in Wilmington, Delaware, United States | San Mateo, California, United States |
| Ownership | Venture-backed | Venture-backed |
| Free tier volume | 200 custom notifications per month, collaboration notifications unlimited | Unlimited mobile push sends, 10,000 web push subscribers and 10,000 email sends per month |
| First paid tier | $30 per month, or $25 per month billed annually (Pro) | $19 per month (Growth) plus per-channel usage |
| Self-hosting | Not offered for the hosted service; the sync engine and dev server are open source | Not offered; managed cloud only |
Strengths and limitations
Liveblocks
Strengths
- The notification tray, read state, per-user channel settings, and batching arrive as part of shipping comments and mentions, which is the work most teams were dreading anyway.
- All six delivery channels, notification settings, batching, and the pre-built components are available on the free plan, which almost nothing else in this category does.
- Collaboration notifications are unmetered on every plan, so the highest-volume notification type in a collaborative product costs nothing.
- Pro at $30 a month, or $25 billed annually, is the cheapest paid entry in the category by a very large margin.
Limitations
- Liveblocks never sends the email. It fires a webhook with the unread list and you compose and deliver the message yourself, which is real work the rest of this category absorbs for you.
- No SMS, no voice, and no mobile push beyond web push, so anything reaching a phone outside a browser needs another tool.
- Pre-built components are React. A Vue, Angular, or Flutter team gets APIs and builds the tray, which is the same complaint people make about Knock.
- The credit model pools four unrelated meters into one balance, which makes forecasting harder than a flat message allowance and hides which feature is spending the money.
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
Liveblocks
A credit balance per month shared across every meter (collaboration minutes, comments, custom notifications, and realtime storage), with a free plan, two published paid tiers, and pay-as-you-go rates once the credits are spent.
- Free$0
- Pro$30
- TeamFrom $600
- EnterpriseCustom
Judged as notification infrastructure, Pro at $30 a month is the cheapest credible option in this category by an order of magnitude, and the free plan is genuinely usable because the channel list and batching are not withheld from it. The reason it is cheap is that the expensive part, composing and sending the email, stays with you, and the notifications that would otherwise be metered are the ones the collaboration products generate for nothing. The model breaks down in two places: the credit pool makes the bill hard to forecast if collaborative editing is heavy, and the step from $30 to $600 arrives sooner than the number suggests once a team needs SOC 2, more than three console seats, or more than ten people in one room. Buy it when collaboration is genuinely part of the product; it is poor value as a general notification router.
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
Liveblocks
Liveblocks is the right purchase when the notifications your product needs are about people working on the same thing. Add Comments or a collaborative editor and the inbox, the unread state, the per-user channel settings, the batching, and the email digest hook arrive with it, the notifications those features generate are never metered, and the paid plan starts at $30 a month against $249 or $250 everywhere else in this category. Two things should send you elsewhere. If your notifications are billing alerts, order updates, and system warnings with no collaboration behind them, you are buying a sync engine to get a tray and Knock, Courier, or SuprSend will serve you better. And if the messages have to reach a phone by SMS or native push, Liveblocks does not go there at all. For a React product adding collaboration, it is the cheapest good answer in the category by a distance.
Read the full Liveblocks 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 profileLiveblocks profile last reviewed 2026-09-13; OneSignal last reviewed 2026-09-07. Pricing is compiled from public sources and can change without notice. See our methodology.
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 Liveblocks and OneSignal?
Barely competitors. OneSignal owns mobile and web push with its own delivery included and a free tier that carries real volume, sold to growth teams running campaigns. Liveblocks has web push only, no campaign tooling, no segmentation, and exists to tell people what happened inside a document they were working on. A product that needs to reach a phone uses OneSignal; a product that needs an unread badge next to a comment uses Liveblocks. Running both is normal and they never touch.
Is Liveblocks or OneSignal cheaper?
Liveblocks starts at $0 (Free), then $30 per month (Pro), or $25 per month billed annually. OneSignal starts at $0 (Free), then $19 per month plus usage (Growth). The billing models differ, so the entry price is rarely the whole cost. Liveblocks pricing model: A credit balance per month shared across every meter (collaboration minutes, comments, custom notifications, and realtime storage), with a free plan, two published paid tiers, and pay-as-you-go rates once the credits are spent. OneSignal pricing model: 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.
Does Liveblocks or OneSignal have a free plan?
Liveblocks has a free plan. Free includes 200 custom notifications a month, unlimited collaboration notifications, all six notification channels, notification settings, batching, pre-built components, 3,000 collaboration minutes, 200 comments, 3M realtime storage updates, 1 GB of realtime storage, 3 dashboard seats, and 10 simultaneous connections per room. Trial terms: No time-limited trial; the Free plan is permanent. OneSignal has a free plan. 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. Trial terms: No fixed trial; the permanently free plan is the evaluation path.
Who should choose Liveblocks?
Product teams adding comments, mentions, or multiplayer editing to a web application who need the notification tray, the read state, the per-user channel settings, and the email digest hook that come with that work, and who are building in React.
Who should choose OneSignal?
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.
What are the best alternatives to Liveblocks and OneSignal?
SaaSTracker profiles 9 products in Notification Infrastructure. The Summer 2026 awards in the category went to Knock (Category Leader), Novu (Best Value), SuprSend (Momentum). Every profile is compiled from primary sources, so a shortlist can be built from pricing, limitations, and fit rather than from star ratings.
