# SMS vs push notifications — how do they compare?

> SMS reaches any mobile number on any phone with no app and is read within minutes, making it ideal for critical, universal messages like OTP and alerts; push notifications are free to send but only reach users who installed your app and granted permission, and are easily muted or ignored. Use SMS for reach and reliability, push for engaged in-app users, and combine them so a missed push can fall back to SMS.

- Canonical URL: https://www.broadnet.me/answers/sms-vs-push-notifications
- Language: en
- Last reviewed: 2026-08-08
- Publisher: BroadNet (https://www.broadnet.me)

## Reach and dependency

SMS works on every handset with no app or account; push requires your app installed, notifications permitted, and the device online with the OS push service reachable. For near-universal reach to anyone, SMS wins. See /answers/what-is-a2p-sms.

## Cost and engagement

Push is essentially free per message but suffers low opt-in and high mute rates; SMS costs per segment but is opened and read at far higher rates. The right economics depend on how critical and time-sensitive the message is.

## Best job for each

Use SMS for OTP, transaction alerts, and anything that must be seen; use push for timely nudges to already-engaged app users. See /answers/sms-for-payment-alerts and /answers/best-channel-for-otp.

## Use them together

A resilient design tries push for app users and falls back to SMS when push is undelivered or the user has no app — so the message always lands. See /answers/sms-fallback-strategy and /products/omnichannel.

## Related

- [All answers](https://www.broadnet.me/answers)
- [Glossary](https://www.broadnet.me/answers)
- [What is A2P SMS?](https://www.broadnet.me/answers/what-is-a2p-sms)
- [SMS vs email marketing — how do they compare?](https://www.broadnet.me/answers/sms-vs-email-marketing)
- [What is the best channel for OTP delivery?](https://www.broadnet.me/answers/best-channel-for-otp)
- [What is an SMS fallback strategy?](https://www.broadnet.me/answers/sms-fallback-strategy)
- [A2P SMS](https://www.broadnet.me/products/a2p-sms)
- [Omnichannel](https://www.broadnet.me/products/omnichannel)