Reach · from October 1, 2026
1,000 monthly active users
OneSignal's own notice: organisations above the cap "will need to upgrade to continue sending push notifications". A modest indie game passes a thousand actives in its first week.
OpenPush · freeFree to 1,000,000 MAU per app — a thousand times the cap — with every feature included.
Automation
1 active Journey, 2 steps
A welcome series plus a win-back flow already needs two journeys. One two-step journey covers "send, then wait" — barely a lifecycle at all. Paid plans raise the cap; they don't remove it.
OpenPush · freeJourneys included, multi-step, with no cap on active journeys or steps — build the whole lifecycle, not one hop.
Lapsed-7d, lapsed-30d, whales, new installs, one per locale — you're past six before you've built a real matrix.
OpenPush · freeUnlimited segments, in the same filter vocabulary you already use.
Level and last_purchase is two. Add language, VIP status, or A/B bucket and you're blocked from targeting on your own data.
OpenPush · freeUnlimited data tags — tag whatever your app knows, target on all of it.
Timing
Intelligent Delivery: Professional and up
Sending at each person's own hour is the single biggest lift most apps ever see from push — and on OneSignal it sits two upgrades away, on the Professional and Enterprise plans.
OpenPush · freeIntelligent Delivery and per-timezone sends included, uncapped.
Lock Screen
Live Activities: 10,000 total push subscribers
Live scores, countdowns and delivery trackers are the most-tapped surface on iOS — and on the free plan they stop at ten thousand subscribers in total (a hundred thousand on Growth).
OpenPush · freeLive Activities and Android Live Updates included — start, update, end, push-to-start.
In-app
1 active in-app message
One live in-app message means you can't run a promo and a survey at once — every new message retires the last.
OpenPush · freePush-first and uncapped; no artificial "one message live" ceiling.
Web push
10,000 subscribers per send
A modestly successful web-push audience blows past 10K fast — then a single broadcast can't reach everyone at once.
OpenPush · freeUncapped web push. Send to your whole audience in one go.
Reporting
30-day data retention
Any month-over-month or seasonal analysis (retention cohorts, holiday campaigns) needs more than 30 days of history.
OpenPush · freeYour history stays — and the importer brings your OneSignal message history across so the charts don't start from zero.
Support
Email-only support
When a send misbehaves at 2am before a launch, email-only turnaround is the wrong SLA to be stuck with.
OpenPush · freeYour credentials, your provider accounts, and your data out on a button — a point-in-time export of your whole account as NDJSON or CSV, everything except secrets, which our own importer reads back.
Limits reflect OneSignal's published free plan, its billing documentation and the October 1, 2026 notice it sent to customers, checked 29 Aug 2026. One limit that is easy to miss: on the free plan, subscriptions with no activity for 18 months or more are deleted automatically. Spot a change? Tell us and we'll update same-day.