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ilert vs PagerTree: catalog facts
ilert	PagerTree
Paid Paid service with a free 14-day trial.	Paid Subscription service; plans are listed on its pricing page.
Android, iOS, Web	Android, iOS, Web
Alerts via push, SMS, voice call and messengers On-call scheduling, incident management and status pages in one service	On-call schedules with escalation layers Notifications by push, email, SMS, voice and chat
Hosted service only Paid after the trial	Hosted service only, with no self-hosted option Aimed at teams rather than individuals
Downloadable app, Hosted service	Downloadable app, Hosted service
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.