# SMS and voice APIs privacy ratings

APIs for sending and receiving SMS and making phone calls from apps, including one-time codes and notifications.

| Name | Grade | Jurisdiction | Description |
| --- | --- | --- | --- |
| [AWS End User Messaging SMS](https://privacyratings.com/communications-apis/aws-end-user-messaging-sms/) | D (45/100) | United States (Five Eyes) | Amazon Web Services API for sending SMS, MMS and voice messages, formerly Amazon Pinpoint SMS. Amazon SNS also sends SMS through it. |
| [Twilio](https://privacyratings.com/communications-apis/twilio/) | D (43/100) | United States (Five Eyes) | Cloud communications platform with APIs for SMS, MMS, WhatsApp, voice calls, phone number verification and video. |
| [Plivo](https://privacyratings.com/communications-apis/plivo/) | F (33/100) | United States (Five Eyes) | Cloud communications platform with APIs for SMS, MMS, WhatsApp, voice calls and phone number verification. |
| [Bandwidth](https://privacyratings.com/communications-apis/bandwidth/) | F (30/100) | United States (Five Eyes) | Communications platform and phone carrier with APIs for SMS, MMS, voice calls, emergency calling and phone numbers. |
| [Sinch](https://privacyratings.com/communications-apis/sinch/) | F (25/100) | Sweden (Fourteen Eyes) | Communications platform with APIs for SMS, MMS, RCS, WhatsApp, voice calls and phone number verification, with regional endpoints. |
| [Telnyx](https://privacyratings.com/communications-apis/telnyx/) | F (25/100) | United States (Five Eyes) | Communications platform with APIs for SMS, MMS, voice calls, SIP trunking and phone number verification. |
| [Vonage](https://privacyratings.com/communications-apis/vonage/) | F (18/100) | United States (Five Eyes) | Communications APIs from Vonage, formerly Nexmo, for SMS, voice calls, video, WhatsApp and phone number verification. |
| [Infobip](https://privacyratings.com/communications-apis/infobip/) | F (15/100) | United Kingdom (Five Eyes) | Communications platform with APIs for SMS, WhatsApp, RCS, email, voice calls and phone number verification, plus customer engagement tools. |
| [Bird](https://privacyratings.com/communications-apis/bird/) | Not graded (30% evidence) | Netherlands (Nine Eyes) | Communications platform, formerly MessageBird, with APIs for SMS, WhatsApp, email and voice, and marketing and customer support tools. |
| [Textbelt](https://privacyratings.com/communications-apis/textbelt/) | Not graded (45% evidence) | United States (Five Eyes) | SMS API with a paid hosted service and an open-source self-hosted version that sends through carrier email-to-SMS gateways. |
| [ClickSend](https://privacyratings.com/communications-apis/clicksend/) | Not graded (45% evidence) | Australia (Five Eyes) | Business messaging service with APIs and a web app for SMS, MMS, voice messages, email and letters. |
| [SignalWire](https://privacyratings.com/communications-apis/signalwire/) | Not graded (45% evidence) | United States (Five Eyes) | Communications platform from the team behind FreeSWITCH, with APIs for SMS, voice calls and video. |

## Criteria

- **Open source** (weight 3): Is all the source code needed to run the product public?
- **No trackers or telemetry** (weight 3): Are the website and apps free of third-party trackers, with any analytics anonymous and any telemetry off by default?
- **No ads or data sales** (weight 2): Is the product funded without advertising, ad targeting or selling user data?
- **Independent audit** (weight 2): Has an independent security or privacy audit been published within the last three years?
- **Transparency report** (weight 2): Does the provider regularly publish how many government and legal requests it receives and how it responds?
- **Tells users about requests** (weight 1): Does the provider promise to tell users about requests for their data, unless a court forbids it?
- **TLS configuration** (weight 2, automated): Does the website pass the Qualys SSL Labs test with a grade of A or better?
- **Security headers** (weight 1, automated): Does the website pass the Mozilla HTTP Observatory test with a grade of A or better?
- **Modern web standards** (weight 1, automated): Does the website score 90% or higher on the Internet.nl website test?
- **Message content deleted or redacted** (weight 3): Can the text of messages be kept from being stored after delivery?
- **EU data location** (weight 1): Can messages, call records and logs be processed and stored in the European Union?

Source: https://privacyratings.com/communications-apis/