OneSignal vs Convex
Mobile + web push, email, SMS, and in-app messaging at consumer scale
vs. The reactive database where queries are TypeScript code
Pricing tiers
OneSignal
Free
Unlimited mobile push, 10K web push subs, 10K email/mo, 1 journey. GDPR compliant.
Free
Growth
$19/mo + usage. 20K email/mo included, then $1.50/1K. 3 journeys. Advanced in-app.
$19/mo
Professional
Custom. Unlimited volume, 20 journeys, CSV export, prioritized support.
Custom
Enterprise
Custom. Dedicated CSM, SLA, frequency capping, advanced permissions, HIPAA options.
Custom
Convex
Starter (Free)
Free with overage via usage-based billing. Great for prototypes.
Free
Professional
$25/developer/month. Overage: $2/M function calls. Daily backups, email support, custom domains.
$25/mo
Business / Enterprise
From $2,500/month. SAML/SSO, SLA, dedicated deployments, Slack Connect support.
$2500/mo
Free-tier quotas head-to-head
Comparing free on OneSignal vs starter on Convex.
| Metric | OneSignal | Convex |
|---|---|---|
| active journeys | 1 journeys | — |
| db storage gb | — | 0.5 GB |
| deployments | — | 40 deployments |
| egress gb month | — | 1 GB/month |
| email monthly | 10000 emails/mo | — |
| file storage gb | — | 1 GB |
| function calls month | — | 1000000 calls/month |
| mobile push | Unlimited subscribers | — |
| team members | — | 6 users |
| web push subscribers | 10000 subscribers | — |
Features
OneSignal · 12 features
- A/B Testing — Split testing across push, email, in-app.
- Analytics + Cohorts — Delivery, open, click, conversion metrics + retention cohorts.
- Email — Transactional + marketing email with templates.
- Frequency Capping — Limit message frequency per user.
- In-App Messaging — In-app banners, modals, surveys, carousels triggered by events.
- Intelligent Delivery — Optimize send time per user with ML.
- Journeys — Multi-step automations with branching, delays, actions.
- Live Activities — iOS Dynamic Island + Live Activities.
- Mobile Push — iOS (APNs), Android (FCM/HMS) push notifications.
- Segments — Dynamic audience targeting by tags, location, behavior.
- SMS — Two-way SMS in 200+ countries.
- Web Push — Browser push via service workers (Chrome, Firefox, Edge, Safari, Opera).
Convex · 18 features
- Actions — Non-deterministic functions for external I/O (fetch, AI APIs, email). Cannot rea…
- Authentication — Convex Auth (built-in) or BYO provider (Clerk, Auth0, Kinde, WorkOS). ID tokens …
- Convex Agents — AI agent framework with durable memory, threads, tool use. Works with OpenAI / A…
- Convex Auth — First-party auth library: passwords, magic links, OAuth, phone — stored in your …
- Convex Components — Reusable backend modules (rate limiter, workflow, aggregate, action-retrier, etc…
- Cron Jobs — Recurring schedules defined in convex/crons.ts. UTC, cron-style patterns.
- Durable Workflows — Long-running multi-step workflows with retries and at-least-once guarantees.
- Exception Reporting — Auto-capture errors to Sentry, Axiom, Datadog.
- File Storage — Upload/download via storage API. Returns storage IDs referenced in documents.
- Full-Text Search — BM25 search index on table fields. withSearchIndex query helper.
- HTTP Actions — Expose public HTTP endpoints for webhooks, OAuth callbacks, third-party integrat…
- Log Streams — Stream function logs to Axiom, Datadog, Sentry. Pro+.
- Mutations — Transactional write functions. All reads + writes in one mutation are ACID; conf…
- Preview Deployments — Every Git branch gets its own isolated deployment. Integrates with Vercel/Netlif…
- Queries — Deterministic read-only TS functions. Automatically cached and re-run when under…
- Real-Time Subscriptions — useQuery auto-subscribes; server invalidates when data a query read changes. No …
- Scheduler — schedule.after / schedule.at — enqueue functions to run later. Durable, survives…
- Vector Search — Native vector index on tables. withIndex + filter fields. Up to 4096 dims.
Developer interfaces
| Kind | OneSignal | Convex |
|---|---|---|
| CLI | — | Convex CLI |
| SDK | OneSignal Android SDK, onesignal_flutter, OneSignal iOS SDK, @onesignal/node-onesignal, OneSignal Unity SDK, OneSignal Web SDK, react-native-onesignal | Android / Kotlin Client, iOS / Swift Client, JavaScript/TypeScript Client, Next.js Integration, Python Client, React Client (useQuery), Rust Client, Svelte Client, Vue Client |
| REST | OneSignal REST API | Deploy / Dashboard API, HTTP Actions |
| OTHER | Outbound Webhooks | WebSocket Subscriptions |
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