What is email and SMS testing?

Email and SMS testing validates the messaging flows your users depend on: one-time passwords, two-factor authentication codes, verification emails, magic links, and password resets. We built TestMu AI to test these on real iOS and Android devices with live SIMs and on real browsers, so you see exactly what your users see.

How do I test SMS and OTP on real devices?

Pick a SIM-enabled device from the TestMu AI real device cloud, trigger an SMS-based login or sign-up, and read the OTP on-screen in the live session. You can also validate phone-number verification and SMS-interrupt handling on the same device.

Can I automate OTP and SMS verification?

Yes. Poll and read incoming SMS inside your Appium scripts to extract the OTP, then run the complete flow in parallel across hundreds of real devices in CI. KaneAI can also generate the test from a plain-English description.

How do you test email verification flows?

Open the email client on a real device or webmail in a real browser, then confirm that verification emails, magic links, OTP emails, and password resets arrive and work end to end. Because the inbox runs on real hardware, you also catch spam-folder and deliverability issues.

Which devices and carriers support SMS and OTP testing?

SIM-based testing runs on physical-SIM Android devices such as Samsung Galaxy S23 to S25 and Google Pixel 6 to 9, and on physical-SIM and eSIM iPhones from iPhone 13 to iPhone 16. Carrier coverage includes the United States (T-Mobile, Verizon, AT&T), India (Airtel, Jio, Vodafone), and Ireland (Three).

Can I test two-factor authentication and login flows?

Yes. Two-factor authentication is a core use case: trigger the login, receive the real OTP on the device, enter it, and confirm the authenticated state. This works for manual mobile app testing and automated runs alike.

Is SMS and OTP testing secure for regulated apps?

Each session runs on an isolated device that is wiped after use, with traffic encrypted in transit. For regulated teams, a private real device cloud keeps SIM-based messaging tests behind your own firewall, backed by SOC 2 Type II, ISO 27001, and HIPAA-ready controls.

Do you support email rendering across clients and browsers?

Yes. Beyond delivery, you can check how an email renders by opening it across email clients and 3,000+ real browser and OS combinations with cross-browser testing, so layout, images, and links hold up everywhere.

How is email and SMS testing priced?

Email and SMS testing is part of the TestMu AI real device cloud. The free plan includes monthly real-device minutes with no credit card required, with paid live and automation plans for parallel runs and dedicated devices. SIM-based testing can be enabled for your account on request.

Test email, SMS, and OTP flows on real devices

Receive real OTPs and verification emails on 10,000+ real iOS and Android devices with live SIM support. Validate 2FA, magic links, and password resets the way your users actually experience them - no emulators, no mocks.

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Everything You Need To Test Messaging Flows

Test SMS, OTP, and email verification flows on 10,000+ real devices, then automate the full journey at scale on TestMu AI.

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SMS & OTP TESTING

Real OTPs on real SIMs

Trigger SMS-based login and sign-up, then read the one-time password on-screen on real SIM-enabled devices across regional carriers.

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Receive genuine OTPs on physical SIM and eSIM devices
Validate 2FA, phone-number verification, and SMS interrupts
Test across US, India, and Ireland carrier networks

EMAIL VERIFICATION

Verify every email flow

Open the inbox on a real device or real browser to confirm verification emails, magic links, and password resets land and work.

Try email testing free

Confirm verification links, OTP emails, and password resets end to end
Check rendering across email clients and 3,000+ real browsers
Catch broken links, spam-folder issues, and deliverability gaps

AUTOMATE AT SCALE

Automate OTP retrieval

Poll and read incoming SMS in your Appium scripts to extract OTPs, then run the full flow in parallel across hundreds of devices.

Automate for free

Read SMS and extract OTP codes directly in Appium tests
Run messaging flows in parallel across iOS and Android
Plug into Jenkins, GitHub Actions, GitLab, and CircleCI

Testing that thinks, heals, and ships with you

AI-powered testing for every stage of your messaging and release pipeline.

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Why teams run email and SMS testing on TestMu AI

Real SIM, real delivery

Genuine OTP and SMS land on physical SIM and eSIM devices, not on a mocked gateway.

Email on real browsers

Open webmail across 3,000+ real browser and OS combinations to verify links and rendering.

OTP automation

Read SMS and extract codes inside Appium, then scale the flow across CI.

Author tests in plain English

Describe an OTP or email flow and KaneAI turns it into a runnable test, no scripting required.

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