The thing I like most about Twilio is how easily it allows developers to obtain a phone number and integrate it with their AI agents or applications. The setup process is quite straightforward, and Twilio also provides free trial credits worth more than $10, which allows developers to experiment with its services and test their applications before spending money. I find this particularly useful when building and testing AI-powered applications that require phone-call functionality. Review collected by and hosted on G2.com.

The thing I dislike most about Twilio is the limitation on the phone numbers provided during the trial period. It generally provides a US-based number, and I cannot freely choose a number from another country. As a developer based in India, this creates difficulties when testing applications that involve international calling.

The international calling credits available through regular Indian mobile plans are quite limited and get exhausted quickly during testing. As a result, I sometimes have to purchase an international calling or roaming plan just to test my applications properly, which adds extra costs to the development process.

I think Twilio could improve this experience by allowing developers to choose trial phone numbers from different countries. This would make testing much easier and more accessible for developers around the world. Review collected by and hosted on G2.com.

The best part for me is how clean and well-documented their APIs are. When I need to add automated SMS alerts, WhatsApp message notifications, or OTP verification into an application, I can usually get a working prototype up in under an hour using their Node.js SDK. Their webhook system for tracking message delivery statuses is super reliable, and you almost never have to worry about delivery infrastructure breaking silently behind the scenes. Review collected by and hosted on G2.com.

Getting through carrier compliance registrations—like A2P 10DLC in the US or DLT registration in India—can be a tedious, slow headache with lots of back-and-forth paperwork before you can send live traffic. Also, if your app experiences a sudden traffic jump, pay-as-you-go pricing for outbound SMS and virtual phone number rentals can add up fast. The main web console has also gotten quite packed with menus over the years, making it slightly tricky to find specific API keys or logs quickly. Review collected by and hosted on G2.com.

What I like best about Twilio is its reliable communication infrastructure, flexibility, and wide range of features. The user interface is well-organized, and the dashboard makes it convenient to manage communication services and monitor activity. Its developer-friendly APIs, detailed documentation, and integration options make implementation and customization easier.

In terms of performance, Twilio provides a dependable platform for handling communication workflows, including SMS and voice services. Its scalable infrastructure makes it suitable for businesses with growing communication requirements.

The usage-based pricing model offers flexibility and allows businesses to manage costs according to their needs. It can also provide good ROI by reducing development effort and eliminating the need to build communication infrastructure from scratch.

I also appreciate the documentation and learning resources available for onboarding and troubleshooting. They help developers understand the platform and get started with integrations.

Another valuable aspect is its support for intelligent automation and AI-powered communication capabilities, which can help businesses streamline workflows and improve customer interactions.

Overall, Twilio is a flexible and scalable communication platform that helps simplify integrations, improve customer engagement, and save development time. Review collected by and hosted on G2.com.

One thing I dislike about Twilio is that some features and configurations can take time to understand, especially for new users who are not familiar with communication APIs. The pricing structure can also become difficult to estimate as usage grows, so monitoring costs is important. Some advanced integrations may require additional development effort and technical knowledge. The dashboard could also be more beginner-friendly in certain areas. While the documentation is useful, finding the right solution for specific technical issues can sometimes take extra time. Overall, Twilio is a powerful platform, but improving ease of use, pricing transparency, and the onboarding experience could make it even better. Review collected by and hosted on G2.com.

As a QA I mostly use Twilio when testing SMS and OTP flows in the apps we build. The message logs in the console are the best part for me. I can see straight away whether an OTP was sent, delivered or failed, and the error codes usually point to the cause, like an unverified or badly formatted number. The test credentials are also handy for checking a flow without sending real messages every time. Review collected by and hosted on G2.com.

The console has so many products and settings that finding the right log or phone number can take a while, especially for someone new. Delivery to some countries is less predictable than others, and trial accounts can only send to verified numbers, which is a hassle when several testers need codes. The per-message cost also adds up once you're testing at volume. Review collected by and hosted on G2.com.

What I like best about Twilio is how easy they make buying and managing numbers for our hospitality venues - the UI is very clean so even as a QA when my product team is not around I can quickly search and buy a local number in 2 minutes, integrations were smooth with our product and API docs are easy to test, performance wise provisioning is instant and call quality is stable which is critical for hotels, pricing is pay-as-you-go so it's good ROI for us vs traditional vendors, onboarding and support was quick with helpful docs, and their AI features like call transcription and spam detection really help us in QA. Review collected by and hosted on G2.com.

Honestly not much, but if I have to say - pricing for some international numbers is a bit on the higher side, and the console can feel overwhelming at times with too many voice/messaging settings mixed together, as a QA I sometimes get confused where to find a simple setting. Also, the initial compliance/regulatory verification for some countries took a bit longer than expected. Review collected by and hosted on G2.com.

Easy to implement throughout app flow. The Webhooks and Event Streams make automated triggers easy and dependable. The documentation, quick starts, code examples and community support are great, meaning you can answer most of your questions quickly. The support team are knowledgeable and have a good technical knowledge, although how quickly they respond and what level of support depends on the support package. It saved time and money by not having to develop our own communications system, reduced no-shows and drop-offs by adding reminders and verifications and increased response rate with customers. Review collected by and hosted on G2.com.

Flexible but can get expensive at scale. Additional costs include carrier fees, number rentals and add-ons. Monitoring usage and putting alerts on billing will help. There are complex requirements for things like A2P 10DLC registration and country specific compliance which delay our launch. The platform is very developer orientated so non-technical teams will likely require more engineering assistance. Advanced products take time to get to grips with. Message based pricing increases quite quickly. If we have an unexpected spike in traffic or additional carrier fees then bill can be shockingly high. Review collected by and hosted on G2.com.

Twilio offers several OTP, SMS related services. And they have excellent support team to respond timely, and dashboard is easy to use and integrate with API and external resources. Offering is excellent for using it locally as well as internationally. Review collected by and hosted on G2.com.

No direct support or sales services directly to whom we can reach out and get the product demonstration and service related information. Review collected by and hosted on G2.com.

Twilio has a lot of features that fall under one umbrella. The upside is that it offers many distinct, separate features across the services they provide. Review collected by and hosted on G2.com.

It often takes your customer service team quite a while to get back to me, and some parts of the updated dashboard aren’t very intuitive to navigate. Review collected by and hosted on G2.com.

We use Twilio in our app for pretty much all the communication stuff: OTP codes for phone verification and login, SMS notifications, WhatsApp messages and some voice calls. The best part is having all of it under one account and one API, so we didn't have to stitch together different providers for each channel. The docs are really good, with code samples for every language, so getting the first SMS or OTP working took very little time. Verify takes care of the OTP logic (code generation, expiry, retries) so we didn't have to build that ourselves. Delivery has been reliable and the logs in the console make it easy to see what happened to a specific message when a user says they didn't get it. Review collected by and hosted on G2.com.

Cost is the main thing. Pricing is per message or per minute and it adds up fast as volume grows, especially for international SMS and WhatsApp, so you need to keep an eye on usage. The WhatsApp setup takes some patience with getting templates approved before you can send. The console has so many products in it that finding the right settings page can be confusing at first. And support on the standard plan isn't the fastest, so we usually end up figuring things out from the docs ourselves. Review collected by and hosted on G2.com.

Fairly straight forward integration and a good basket of product offering. Review collected by and hosted on G2.com.

Their customer service is terrible, non-existent actually. They do not listen to anything you tell them and instead constantly feed you stock answers from the support docs regardless of relevancy. The goal seemed to be to get you to pay for a customer service package in order to get them to tell them where their system has failed.

I am now 6 weeks into an issue getting A2P 10DLC approved for 4 clients. I had already submitted all, having gone through their process. I never received an email that any were disapproved, then I log in one day to check and all are back at the starting point. I reached out to understand what and get them to again share the Brand to these 4 accounts, and while they said the share the Brand to all my account it took 3 emails to get that to actually be so. Now the Brand registration process only produces drafts, even though when I go through it, it says it has been successfully submitted. On a couple I have 10-12 draft brand registrations. They then started explaining to me how & what I needed to do to get the campaign registration done when I cannot even get to that point. I have now sent 4 emails to them with video showing conclusively that what I say is true and they flat out ignore me. Terrible Review collected by and hosted on G2.com.