SMS and push

18 services

This category covers mobile push, browser push, SMS and multi-channel notification APIs. OneSignal, Pusher, webpushr and Azure Notification Hubs deliver push notifications; Novu, Knock, Courier and SuprSend route one API call to email, SMS, push, chat and in-app feeds; httpSMS and SMSGate send texts through an Android phone you own; numverify and veriphone validate phone numbers.

Push costs little to deliver, so plans are generous. OneSignal lists unlimited push notifications, Pusher unlimited pushes for 2,000 MAU, Azure Notification Hubs 1M notifications and webpushr 10,000 subscribers. Notification APIs meter messages instead: Novu allows 30,000 a month, and Knock, Courier and SuprSend 10,000 each.

SMS works differently. Carriers charge per message, so hosted SMS rarely comes without cost; Pingram.io includes only 100 SMS and calls. Phone gateways like httpSMS, with 200 messages a month, avoid carrier fees by sending from your own SIM, which suits alerts and testing rather than bulk sending. Notification APIs usually send SMS through a provider account you connect, so per-message charges still apply.

18 services

Amazon SNS

Pub/sub messaging that fans out to queues, functions, HTTP endpoints, SMS and push.

1M publishes/mo

Visit
Azure Notification Hubs

Push notification engine for sending to iOS, Android and Windows devices at scale.

1M push notifications

Visit
Courier

Notification API with templates that routes one call to email, SMS, push, chat or in-app inboxes.

10,000 messages/mo

Visit
Engage

Customer messaging and automation for SaaS: email, push, SMS, in-app tours and banners.

1,000 active users/mo

Visit
httpSMS

SMS gateway that sends and receives texts through an Android phone you own.

200 messages/mo

Visit
Knock

Notification API that fans one call out to email, SMS, push, Slack or an in-app feed.

10,000 messages/mo

Visit
Novu

Notification infrastructure with APIs and UI components for email, SMS, chat, in-app and push.

  • Open source

30,000 notifications/mo

90 days retention

Visit
numverify

JSON API that validates international phone numbers and returns carrier and location details.

100 requests/mo

Visit
OneSignal

Messaging platform for push notifications, in-app messages and email to app users.

  • No card

10,000 emails/mo

Unlimited push notifications, Unlimited contacts

Visit
Pingram.io

Multichannel messaging API covering SMS, voice calls, email, push, Slack, Teams and WhatsApp.

3,000 emails

100 SMS and calls

Visit
Pocket Alert

Push alerts to your own iOS and Android phones, triggered through an API or webhooks.

50 messages/day

1 device, 1 application

Visit
PubNub

Realtime pub/sub messaging and mobile push with SDKs for Swift, Kotlin and React.

1M transactions/mo

1M push messages/mo, 100 daily active devices

Visit
pusher.com

Push notification API covering iOS and Android devices through one interface.

2,000 MAU

Unlimited push notifications

Visit
SMSGate

Gateway app that sends and receives SMS through your Android phones, relayed via a cloud API.

10,000 messages/day suggested cap

Visit
SuprSend

Notification API with workflows for transactional, scheduled and engagement messages across channels.

10,000 notifications/mo

Visit
veriphone

JSON API for checking whether phone numbers worldwide are valid.

1,000 requests/mo

Visit
webpushr

Browser push notification service with subscriber management and on-site messages.

10,000 subscribers

Unlimited pushes

Visit
sandbox.httpsms.com

Test sandbox for sending and receiving SMS messages during development.

Limits not listed

Visit
About this site
Esc

Type to search every entry. ↑↓ to move, Enter to open.