Sinch Reviews & Product Details

Sinch is a cloud communications platform as a service (CPaaS) solution that helps businesses engage customers across messaging, voice, email, and verification channels. Founded in 2008 and headquartered in Stockholm, Sweden, with additional operations in Atlanta, Georgia, Sinch serves more than 200,000 businesses worldwide, including 8 of the 10 largest U.S. technology companies. The company operates in more than 65 countries and is publicly traded on Nasdaq Stockholm (XSTO: SINCH). Sinch's platform combines APIs, applications, and a directly connected global network to deliver customer communications at scale. Key capabilities include: - Messaging: SMS, RCS, MMS, and WhatsApp APIs and applications for marketing campaigns and customer notifications - Voice: Programmable voice APIs and SIP trunking for call routing and voice-based customer service - Email: Transactional and marketing email infrastructure for deliverability at scale - Verification: Phone number, SMS, and flash-call verification APIs for identity checks and fraud prevention - Agent Tools: MCP, Functions, and Skills for connecting AI agents to Sinch's communication channels, alongside support for third-party AI and partner platforms Sinch is built for organizations that need to reach customers reliably across multiple channels without managing separate vendor relationships for each one. Direct connections to more than 600 carriers and operators, along with ISO 27001, ISO 9001, PCI DSS, and SOC I and II certification and GDPR and HIPAA compliance, support use cases ranging from marketing campaigns and account notifications to identity verification and customer service. The platform is recognized as a Leader in the 2026 Gartner Magic Quadrant for CPaaS and the IDC MarketScape for Communications Engagement Platforms.

Seller

Sinch

Discussions

Sinch Community

Languages Supported

English, Portuguese, Spanish

Solution Type

All-in-One

Overview by

Roshni Shah-Chin

Used by Lets Nurture and 2 others

Beta

Value at a Glance

Averages based on real user reviews.

Time to Implement

3 months

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Sinch Solutions

(1)

See how Sinch products can work together to solve real problems.

Sinch Integrations

(10)

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Neo K.

Information Technology Support Officer

Small-Business (50 or fewer emp.)

5/25/2022

"Worts Support I have ever experienced"

0/5

What do you like best about Sinch?

they have a good platform and is user friendly. thats it, the business aspect behind the product is not existent Review collected by and hosted on G2.com.

What do you dislike about Sinch?

We have decided to cooperate with sinch on behalf of my organization and we regret it ever since. They never reply to emails and they do not adhere to SLAs at all. We are on the verge of terminating the agreement while approaching our deadlines. I do not recommend it. Review collected by and hosted on G2.com.

Verified User in Computer Software

Mid-Market (51-1000 emp.)

6/14/2021

"Unreliable business partner -- weak API and gaps in notification process with insufficient remedy"

1/5

What do you like best about Sinch?

Sinch offers coverage in a wide range of geographies -- we historically used them in several countries where our other providers did not have strong delivery performance. Review collected by and hosted on G2.com.

What do you dislike about Sinch?

It is not possible to get pricing data through Sinch's API, unlike many of their competitors. After committing to offer us a fixed price in a key market, they raised their prices by 6x and did not notify us in any way, even though they sent us other email price notifications during this same period. When we finally identified the price change, which led to significant losses for our business, they apologized but only offered us a refund of ~2% of the losses we incurred. Even though the error was clearly on their end, we were the ones who suffered losses. We have decided to pull all of our business from Sinch going forward because we can no longer consider them a reliable and trustworthy partner. Review collected by and hosted on G2.com.

What problems is Sinch solving and how is that benefiting you?

We were attempting to address gaps in our other providers' coverage, but we have realized it was better to work with those partners to address delivery issues rather than rely on Sinch. Our other partners make it much easier to pull real-time data via API, and we also have a much better business relationship with them. On balance, the negatives outweigh the positives in our relationship with Sinch. Review collected by and hosted on G2.com.

Jacqueline C.

Product Manager

Mid-Market (51-1000 emp.)

11/17/2020

"Sinch has been an absolute pleasure to work with for all of our SMS needs"

5/5

What do you like best about Sinch?

Everyone at Sinch that I've worked with has been extremely responsive, whether it is questions about adding additional features, or supporting our end users, to even handling billing issues; this level of responsiveness really establishes a strong business partnership Review collected by and hosted on G2.com.

What do you dislike about Sinch?

The biggest downside in our experience has been cost, where we have seen some other vendors be a little more competitive in the market Review collected by and hosted on G2.com.

Recommendations to others considering Sinch:

Sinch is a very good company to work with from an SMS Aggregator role; I've been working with them for many years now going back to the mBlox company, and the business relationship is as strong as it ever was. They are very proactive in ensuring they can meet our needs and supportive whenever we need them to be. Review collected by and hosted on G2.com.

What problems is Sinch solving and how is that benefiting you?

We don't have many problems, just occasional issues with individual users receiving SMS responses from short codes, and the support received from Sinch really helps get through those isolated instances in an efficient manner. Review collected by and hosted on G2.com.

Eric V.

Mid-Market (51-1000 emp.)

11/17/2020

"Great partner who is open to exploring and innovating."

5/5

What do you like best about Sinch?

The support team is very responsive around the existing services we use. Additionally, they take the time to listen and understand the business challenge/s we are solving for. For example, we recently explored text enabling our 800 to offer a new channel of communication by our members. To accomplish our use case, we were introduced to the Sinch Flows platform that offered the immediate capabilities we needed and additional features we could use in the future. Review collected by and hosted on G2.com.

What do you dislike about Sinch?

Nothing comes to mind at this time. They have been a great partner. Review collected by and hosted on G2.com.

What problems is Sinch solving and how is that benefiting you?

We are exploring the use of a Group Chat feature that would live purely in the SMS space and not require the need to install specific apps such as WhatsApp. This allows our internal teams to use tools (SMS) that they are already familiar with which reduces learning curves and quick adoption. We are also offering additional Digital channels for our members to communicate on. We've been able to do this by text enabling our 800 number and delivering automated responses with a link to an online resource. Review collected by and hosted on G2.com.

James ("J.") N.

CXM Digital Solutions Analyst

Mid-Market (51-1000 emp.)

11/12/2020

"Positive engagement"

5/5

What do you like best about Sinch?

The Team was great as we were getting our account set up. Provide timely updates as carriers were reviewing our application. Additionally, provided strategies on who we would be able to allocate cost to various business units that would be using the same shortcode. Review collected by and hosted on G2.com.

What do you dislike about Sinch?

Their online platform to find the status of our submissions to the carriers was difficult to find. Once I knew where it was, it was easy to find. It was just not as intuitive as I would have expected. Review collected by and hosted on G2.com.

Recommendations to others considering Sinch:

Highly recommend. The team is great to work with. We even had an account rep switch (he got promoted) and the Director of Enterprise Accounts proactively reached out to let me know what was going on and set up a time for an introduction. In the past, it was typically just the old rep or the new rep reaching out. Review collected by and hosted on G2.com.

What problems is Sinch solving and how is that benefiting you?

We wanted to begin SMS communications with our field team, channel partners, and (ultimately) our end-user customers. We use Adobe Campaign as our email communication provider and the platform also has SMS capabilities. Sinch came as a highly recommended partner. Review collected by and hosted on G2.com.

Muhammad F.

Small-Business (50 or fewer emp.)

11/12/2020

"Brilliant products, brilliant people"

5/5

What do you like best about Sinch?

How Sinch representatives understand your requirements and issues and provide you solutions that work. Also I must mention that they're very patient and understanding of your circumstances as a business, this was very evident during the tough times we faced due to the COVID-19 pandemic.

On the other hand, they have the best tech platforms/teams. Our development teams have never faced an issue technically, Sinch's API's are well documented and are very easy to integrate and use. Review collected by and hosted on G2.com.

What do you dislike about Sinch?

I dislike the fact that they don't have an office in Pakistan, our local tech scene can definitely be helped with an amazing company like Sinch operating locally. Review collected by and hosted on G2.com.

What problems is Sinch solving and how is that benefiting you?

Some of the business problems we are solving with Sinch are:

1. Automated bank statement delivery over WhatsApp API

2. Automated/Agent customer support for large and medium enterprises over WhatsApp API

3. Banking platform build on Sinch's WhatsApp API

We have implemented successful business solutions into many enterprises and our products powered by Sinch are providing ease of access, automation and cost reduction to our customers. Review collected by and hosted on G2.com.

Keith H.

Founder and CEO

Small-Business (50 or fewer emp.)

9/27/2020

"Wasted money, wasted time"

0/5

What do you like best about Sinch?

The video quality is very good when you do get their software to connect. I have a development team in India and even video chatting here in the states with them 1 on 1 worked great during our first trial tests of the video chatting integration for Android. Review collected by and hosted on G2.com.

What do you dislike about Sinch?

We gave this company every opportunity to make us happy clients but due to the lack of support we were not able to get android local view to expand to full screen on most modern phones anything running Android 10 and higher does not work properly. We sent over screenshots and videos. After getting the run around from their auto responders for a month we finally got a hold of someone, and they said that they "do not do custom coding". We only asked if they could look at our code which is straight from their own SDK and let us know why it is not working per their own API documentation. We were really surprised by their lack of effort to find a solution or a middle ground we even offered to pay, and they refused but the strangest thing is they offer and promote custom development on their website. We took a big hit in the wallet this month due to the labor cost associated with adding and removing a feature that does not work. So while it may only cost .14 cents per hour for 2 people to video chat at 1080 quality the real hidden cost for a business like mine comes from the integration of the SDK. To have to remove an integration because our UI does is not up to par is a real bummer. Review collected by and hosted on G2.com.

Recommendations to others considering Sinch:

Sinch looks nice on the outside the admin panel is easy to use but there is no way to create additional users, soon I had to share my company email id and password for this integration to ensure my developers had senior level access. If that's something your ok with then great but if you need access delegation use a different platform. Review collected by and hosted on G2.com.

What problems is Sinch solving and how is that benefiting you?

Our core functionality is video chatting. We offer a marketplace where our members can video chat with each other and exchange services and requests. Our marketplace is big, so we need to support our Admin Panel, iOS app and Android app. We did not want to have to build our own custom web RTC software because that would have taken us a month.

The benefits we realized are for certain aspects of our business we can't always invest or support the underdog company. While we don't like supporting "too big to fail" corporate companies (Amazon, Zapier) monopolizing the industry we also as a company have to find balance in the software tools we are using for our business and because video chatting is so cored to building community even if we have to pay more for the usage/bandwidth cost per minute of video chatting. In our case it is better to go with a reputable company that has been in the game a while. Review collected by and hosted on G2.com.

Aron S.

Small-Business (50 or fewer emp.)

11/22/2020

"Long time Sinch fan"

5/5

What do you like best about Sinch?

We have been delivering SMS messages of all sorts through Sinch since it was mBlox and CLX. We have been looked after by the company and the people for more than a decade. The breadth and depth of their service offering, particularly around mobile services, means that whatever problem I need solved, Sinch has always had a solution. Review collected by and hosted on G2.com.

What do you dislike about Sinch?

The company is getting pretty large and their services are spreading beyond mobile. It is starting to feel a little bit less personal. Review collected by and hosted on G2.com.

Verified User in Internet

Small-Business (50 or fewer emp.)

11/18/2020

"Lots of great services, reasonable pricing, not the greatest onboarding experience"

4/5

What do you like best about Sinch?

Sinch does a great job at providing dedicated resources to really get to know your business and understand the use cases you're exploring. They seem to have a strong value in knowing their customers and having one-on-one phone calls that really flush out what you're trying to accomplish as a business. Review collected by and hosted on G2.com.

What do you dislike about Sinch?

The different services Sinch offers can often feel disjointed or completely siloed. Getting access to additional services can be a bit of a hassle with lots of meetings and paperwork to sign. Additionally, we've had our previous account reps really drop off the map with support after getting us to sign on for additional services, requiring several email follow ups to get access to their technical resources for help getting started. Additionally, they have tiered sending rate limits for messaging, which other competitor tools don't seem to have. Review collected by and hosted on G2.com.

What problems is Sinch solving and how is that benefiting you?

Sinch has allowed our business to stay competitive in our pricing by offer great discounts at scale. They also have been able to help us scale up our own business by offering us the ability to send more and more messages as we grow without blowing up our bottom line. We're looking forward to seeing Sinch really be able to capitalize on some of their more recent growth and support a more integrated product set so that it's easier for us to leverage more of their tools without so much back and forth. Review collected by and hosted on G2.com.

David B.

Enterprise (> 1000 emp.)

11/22/2020

"Sinch - CPaaS enterprise solution"

5/5

What do you like best about Sinch?

Sinch have a very responsive support team, combined with a conversational API for facebook/whatsapp/web chat. The SMS solution was easy to implement and integrate. Review collected by and hosted on G2.com.

What do you dislike about Sinch?

I'm looking forward to the raft of new features they have launching in 2021 which will provide my clients with additional features, plus a better user experience for customers Review collected by and hosted on G2.com.

Recommendations to others considering Sinch:

For large organisations that want full control of their mobile messaging. Review collected by and hosted on G2.com.

What problems is Sinch solving and how is that benefiting you?

Being able to manage large scale SMS campaigns (500k batch sends) with integrations into varied messaging channels based on user preferences. Personalised rich SMS is a big win also. Review collected by and hosted on G2.com.