17.2
Gupshup provides conversational AI for marketing, commerce, and customer support automation.
Free planWebAPI
Best Phone Verification Software in 2026
Phone verification software helps services confirm a phone number with one-time codes sent by SMS or voice. Depending on the product, access may be through a web interface or an API. Check whether an Android app is listed before choosing. Platforms in this category can include web, API, iOS and Android. Compare free access, paid starting points, country coverage, verification methods and control over OTP expiry.
26.9
Sinch Verification API provides phone number verification and multi-factor authentication for app sign-up, login, and password resets.
AndroidiOSWeb
36.6
MSG91 provides an SMS API for business communications, including sending and receiving messages.
AndroidiOSWeb
- 4
Twilio Verify
WebAPI6.3 - 5
2Factor.in OTP API
2Factor.in OTP API is a web service for working with one-time passwords through a REST API and SDKs.
Free planWeb6.2From ₹4,999 a month - 6
Bird Verify
Bird Verify confirms control of a phone number or email address by sending a code and checking the response.
Free planWebAPI6.2Free plan - 7
Plivo Verify
Plivo Verify is an API for sending and validating one-time passwords used in two-factor authentication.
Free planWebAPI6.2Free plan - 8
ValueFirst RCS Business Messaging
ValueFirst RCS Business Messaging lets businesses send branded, conversational messages through RCS.
WebAPI5.7 - 9
Telesign Verify
AndroidiOSWeb5.5 - 10
otp.com
AndroidiOSWeb5.2 - 11
Veriph.One Phone Verification SDK
AndroidiOSWeb5.2 - 125.1
- 13
Infobip 2FA
Web4.8 - 144.8
- 154.7
- 164.7
- 174.6
- 18
OTP Gateway
Web4.6 - 19
OTP.dev
Web4.6 - 204.6
- 214.5
- 224.3
- 234.3
- 244.3
Choosing well
Check the platform
Look for Android support when you need to manage verification from a phone. Products may instead list web access, an API, iOS or a combination of platforms.
An API can suit an app or service that sends verification requests from its own system.
Compare free access and cost
A free plan can help you start without a paid commitment. A free trial gives a limited period to evaluate a paid service.
Check the stated paid starting point or request pricing when the provider does not publish a figure.
Choose SMS or voice
Compare SMS verification with voice verification for your sign-in flow. A provider may focus on one method or offer a broader set of verification methods.
Check country coverage for the places where you need to send codes.
Review API and OTP controls
API access matters when verification needs to connect with another service. Check the documentation and the way requests are handled.
Look for OTP expiry control if you need to set how long a code remains valid.
Check the licence
If you need to read or change the code, check the software licence. An open-source option can make that review possible under its stated terms.
Questions people ask
Do these services have Android apps?
Android support varies. Check the platform listing for the product before choosing it for phone-based work.
Can I start with a free plan?
A free plan is offered by products in this category, while other products list a free trial or paid access. Check the individual pricing note.
Is SMS verification available?
SMS verification is a comparison point for this category. Confirm that the product you choose supports SMS for your use case.
Can verification use a voice call?
Voice verification is a comparison point for this category. Check the provider's listed verification methods.
Do these tools provide an API?
API access is a comparison point. Products may provide an API, web access or both, so review the platform details.
Why does OTP expiry control matter?
OTP expiry control lets you review how long a one-time code stays valid. Check whether the product exposes this setting.