Choose OneSignal if you build apps or games and want an unlimited push API. Choose Pushwoosh if you want billing tied to the channels you actually send on. Each has a free plan to begin, then monthly paid plans, with top plans quoted by sales.
A developer shipping a game or cross-platform app gets ready-made kits for React Native, Flutter and Unity apps from OneSignal. Sends through the API are uncapped, whichever plan a team is on. Send-time optimisation picks a delivery moment for each user. Deeper analytics and data exports arrive only with annual contracts.
A news publisher or messaging-heavy marketing team gets the most from Pushwoosh. A feed-driven push sends a notification whenever a news feed updates. Pushwoosh also reaches people on messengers such as WhatsApp and Telegram, and its journeys call outside systems through webhook steps. WhatsApp and SMS delivery is billed separately by the carriers.
OneSignal's users praise easy setup, a generous free plan and well-documented SDKs. They complain that pricing jumps sharply once an app outgrows the free plan, and some report slow support and billing disputes. Pushwoosh's reviewers like its quick, helpful support and good value. Non-technical staff find it easy. Reporting reads as thin to some, and the admin portal feels cluttered in places.
OneSignal describes an online wine retailer and app in Brazil that sends personalised, segmented push notifications, and push now drives a share of its revenue. Pushwoosh tells of a mobile gaming company running a few game titles that applies automated push for retention, reactivation and in-app purchase promotion. The gaming company's daily and monthly active users grew strongly.