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What is Sinch? Sinch is a communications platform as a service (CPaaS) provider that is designed to make adding...
Stockholm, Sweden
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Marcel G.'s review for Sinch

We are using Sinch as a provider of our int. calling business. They give us the flexibility to offer very competitive prices and services.

Via G2Crowd with permission from sinch

Pros: - Services are reliable and stable - Call quality is very good - API documentation is good - Pricing is very competitive.
Cons: Customer support response times take long at times.
Would Recommend: Yes
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I especially like their full API call log, so I could follow back some conduct we didn't sign on our back-end. Scalability is one of the significant issues when utilizing such devices, which this platform appears to handle appropriately.

Via G2 Crowd with permission from Sinch

Pros: It's incredible for application circulation as well, by sending download interfaces straightforwardly to cellular telephones or permitting clients to share the application through content informing. One of the best components is that the SDK is accessible in practically every dialect, henceforth usage part is exceptionally smooth and simple.
Cons: They can enhance the UI to make this component easier and more unmistakable. It can challenge for the individuals who aren't capable at programming utilizing this API. Now in API there might be an alternative to change how those points of interest shows up at flip side, despite everything we need to make sense of that.
Would Recommend: Yes
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I would also use the GCM as it provides native support, AWS is popular, Firebase

I solved my issue with instant messaging communication as well as being able to send media over the network

Via G2 Crowd with permission from Sinch

Pros: I like how easy it was for me to implement with my Parse backend interface as I can just slip in the code that implements the API.
Cons: How there isn't an interface that you can use for this API. It can be challenging for those who aren't proficient at programming using this API.
Would Recommend: Yes
Provider Overview

What is Sinch?

Sinch is a communications platform as a service (CPaaS) provider that is designed to make adding communications channels to apps easier. Sinch is very developer-friendly; using APIs, the software permits the adding of voice, SMS, MMS, chat, video conferencing, and verification (to prevent fraud) into applications for desktops and smartphones. 

Sinch states that you can “Reach every mobile phone on the planet, in seconds or less” on their page, which is integral functionality for those trying to create global communications. Using Java, Python, or PHP, your development team uses code to seamlessly add extra channels so that your customers have the means to reach your brand. Sinch has powered applications for several major brands, including Toyota, Clarins, Nespresso, Macy’s, Estee Lauder, and TUI. 

Remember, based on a study from Marketing Week, customers use as many as six touch points to reach their favorite brands. So, adding communications channels to your apps is going to present more opportunities for engagement. 

CPaaS solutions like Sinch have functions for marketing, service delivery, and customer care, and there are several tools provided by Sinch that help developers add these APIs. For example, their page has how to sections, software development kit (SDK) and helper libraries, and tutorials that are all designed to make the back end development experience more convenient.


Overview of Sinch Features & Highlights

As a CPaaS provider, Sinch has a few important aspects that make it a good solution for a brand looking to expand their application capability. Here are some to consider:

  • Sinch has a presence in 33 countries.
  • There are SDKs and REST APIs for Android, Javascript, and iOS.
  • Their cloud communications platform reaches every mobile phone on the planet.
  • There is a tier-1 support network in place supporting more than 350 mobile operators globally.
  • The system has verification APIs for SMS, flash calls, and voice.
  • Sinch technology embraces SMS for 5G, so devices with internet of things (IoT) connectivity will have features like wake-up and over-the-air (OTA).
  • There are various value-added services like an IP-SM gateway, voicemail, and multimedia messaging service centers (MMSC) for better MMS message forwarding.
  • Sinch uses WebRTC, so businesses with their own WebRTC frameworks in their applications can contact the provider for help getting started.


Sinch allows your applications to implement several communication channels and add application integration. Here are a few to consider:

  • Voice Calling: This allows the adding of voice channels to your application.
  • Short Message Service (SMS): SMS is standard the text messaging service found on most smartphones.
  • Multimedia Message Service (MMS): MMS allows text messages to include video and image content.
  • Rich Communication Service (RCS): RCS is something of an amalgam of MMS and SMS, but it also includes features that allow senders to send live updates. In addition, it ties together features and messages from other chat programs.
  • WhatsApp: WhatsApp is a voice and text messaging service that works on both Wi-Fi and cellular networks. It’s also available on desktop and smartphone.
  • Conversation API: Conversation APIs allow users to converse across multiple platforms. For example, WhatsApp users can send messages to other users using SMS. 
  • Video Calling: Video calling APIs deliver a face-to-face experience for customers looking for help using an app. It’s a form of video conferencing.


Sinch customers also have data calling features to consider. These include:

  • Conference calling for up to 100 people. 
  • Call recording that records all inbound and outbound calls.
  • IVR menus that present callers with routing options that they select by pressing keys on their touchtone pad. 
  • Text-to-speech that reads typed content through the Sinch Voice SMS API.
  • Pre-recorded prompts for your agents that make customer interactions more structured and pleasant.


Finally, Sinch’s number features also present businesses with critical tools:

  • Number Lookup: Businesses need to reach live respondents, and dialing inactive numbers wastes valuable contact time. Sinch uses a number lookup system that bounces numbers off of an operator network to ensure that they are viable. This also helps find the home network of customers so that calls in the future are more efficiently routed. 
  • Short Codes: Sinch provides free to end user (FTEU) short codes for their SMS service. This presents the user with a short code number that’s like a shortened phone number that makes a brand more easily recognizable when it texts. This is free for users who are charged for texts.
  • Long Numbers: This service is a form of virtual number assignment. With it, your business attains dedicated numbers for their brand that are either local domestically, local to foreign markets, or have toll-free prefixes so that a brand is free to reach.  
  • Number Masking: Number masking is used by companies like Uber and GrubHub to provide numbers for company reps without exposing their private numbers. This is sort of a virtual phone number service that generates numbers for customers to communicate through an app.


Sinch Pricing & Plans

Sinch is a provider that has free app-to-app calling for businesses to use for the first 2,500 minutes that are used each month. After that number has been reached, there is a change for both inbound and outbound calling. The same is true for SMS messaging; once 2,500 messages are sent, users will be required to pay a fee for any additional sent messages. Since there are no dedicated pricing plans for this communication service, let’s take a look at some of the API pricing that give Sinch a pay-as-you-go structure.

Type of Contact Pricing
Inbound Phone Calling $0.004/minute
Outbound Phone Calling $0.01/minute
SMS Messaging $0.01/message
App-to-App Data Calling $0.002/minute
Landline Data Calling $0.01/minute
Mobile Data Calling $0.01/minute
Video Calling $0.003/minute
SMS Verifications $0.0064/verification
Flash Call Verification $0.0023/verification


In addition, a phone number that makes and receives calls costs $0.8 per month. If your business is located outside of the United States, prices could vary. Prices could also differ slightly based on the service provider that your business uses to connect to customers.


Editor’s Bottom Line on Sinch

Sinch is a solution that adds a lot of simplicity to the app-building process – you begin by naming your app and then decide the precise channel functions that you want to add to it. The software is also multi-platform, so it works for those developing on web-based browsers, desktops, iOS, Android, or Javascript. 

Software support is also a pretty significant benefit of going with Sinch. Their in-house team is available 24/7 and can be reached by their email, their telephone number, or through two Sinch customer portals. Sinch employs a service level agreement (SLA) that guarantees 99.9% uptime for their services. While this isn’t quite as good as those providers that offer 99.99% or even 99.999% uptime guarantees, this does mean that their service is relatively reliable and available.

Their app-to-app calling is very convenient for small businesses as well. If you’re going to be using less than 2,500 minutes per month, this style of communication comes at no charge other than the cost of the phone numbers each month. For those exceeding this limit, the price of $0.002 per minute is very manageable, even if the company is fairly small. Their verification services go a long way for protecting businesses from fraud, and these services cover voice, SMS, and flash calls, which should provide a safety net for businesses.

Sinch is a CPaaS provider that has embraced creating dedicated resources for businesses that are forced to social distance. They have articles that highlight using technologies like video conferencing and chat bots to engage with customers and how to use the platform to negate the effects of SMS fraud. Features like number masking also help protect the anonymity of employees that work in service delivery. They communicate with your customers while keeping their private numbers separate.

As a provider, Sinch provides businesses with the needed channels, tools like REST APIs and SDKs, and a strong support system for developers.

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