Stuck choosing between Synthflow and Play AI? You're not alone.
Trying to pick the right AI voice tool can be a real headache—between overloaded feature lists, confusing pricing, and mixed reviews, it’s easy to feel overwhelmed fast. We’ve been there. But by the end of this article, you’ll know exactly which tool fits your needs—and you’ll be able to make that decision with confidence. We’re going to break down:
Key features, pros, and cons of both Synthflow and Play AI
Side-by-side pricing comparisons
User reviews and who each tool is best for
Plus—a BETTER alternative you might not have considered (psst… it's Ringly.io)
If you're ready to cut through the noise and find the right fit, let’s dive in.
Why Ringly.io is the better choice ; )
Built for e-commerce
With experience in both AI and e-commerce, we set out become the best AI phone agent platform for online stores.
Stupid-simple user interface
Super easy to work with, and you can set up things even if you're not tech savvy. If you create a free account you can see it for yourself though!
Quick and easy setup
Pre-built AI phone agents and will have your online store automated in minutes- not hours.
Synthflow vs Play AI – TL;DR
Product Area
Synthflow
Play AI
Ringly.io
Voice Quality
Natural, multilingual, customizable
Ultra-realistic, gaming-grade
High quality, human-like
Business Use Focus
SMBs, calls & scheduling
Gaming, developers, creative tools
E-commerce growth & recovery
Integrations
200+ CRMs & apps
Custom API options
7,000+ tools, sales triggers
Pricing
$29–$1400/month
$0–$999/month
$0–$1179/month usage-based
AI Features
Voice cloning, sentiment, flow builder
TTS, cloning, context dialogue
Abandoned carts, order lookup
Ease of Use
No-code, drag-and-drop
Tech-friendly, API-first
No-code, plug + play
Best For
Service-focused SMBs
Game devs & creators
Online stores & sellers
Synthflow - a quick overview
Synthflow AI was founded in 2023 by Hakob Astabatsyan, Albert Astabatsyan, and Sassun Mirzakhan-Saky in Berlin. The company specializes in creating no-code AI voice assistants that help small and medium-sized businesses automate customer interactions, such as appointment scheduling and customer support. Synthflow AI has grown rapidly, serving nearly 1,000 customers and securing $9.1 million in funding.
The platform is designed to be user-friendly, allowing businesses to deploy AI voice assistants without needing technical expertise. It supports multiple languages and integrates with various tools to enhance functionality.
In the following section, we’ll explore Synthflow AI’s features, pros and cons, pricing, and user reviews, comparing them with other AI solutions like Play AI and Ringly.io. This comparison will help you understand where Synthflow AI stands in the market and whether it's the right fit for your business needs.
Synthflow's Features
AI Voice Agents for Inbound and Outbound Calls Synthflow automates both inbound and outbound calls, enabling businesses to handle large call volumes efficiently. Its AI agents provide natural, human-like interactions in multiple languages, making it ideal for global customer service operations. Compared to Ringly.io’s similar feature set, Synthflow lacks the deep e-commerce integrations like Shopify or WooCommerce that Ringly.io offers.
Real-Time Appointment Scheduling Synthflow integrates with tools like HubSpot and Zapier to schedule meetings directly during calls. This feature streamlines lead conversion by eliminating follow-ups. While Play AI also supports scheduling, Ringly.io focuses more on sales recovery rather than appointment setting.
Customizable Voice Cloning With advanced voice cloning capabilities, Synthflow personalizes interactions by mimicking specific voices. This is particularly useful for brand consistency in customer-facing roles. However, this feature doesn’t directly address e-commerce-specific needs like abandoned cart recovery offered by Ringly.io.
Sentiment Analysis During Calls Synthflow detects caller emotions in real-time and adjusts its responses accordingly to improve satisfaction levels. While this enhances customer experience broadly, it doesn’t offer the actionable insights into sales outcomes provided by Ringly.io’s AI call analysis.
Seamless Human Call Transfers Calls can be routed to human agents based on trigger words or complex queries. The system provides detailed context during transfers for smoother handoffs. This is comparable to Ringly.io’s smart transfer capabilities but lacks the tailored triggers specific to e-commerce workflows seen in Ringly.io.
No-Code Setup with Flow Designer The drag-and-drop interface allows users without technical expertise to design workflows easily. Businesses can deploy AI voice assistants quickly without developer involvement. While Play AI also emphasizes ease of use through no-code tools, Synthflow's flow designer is more robust compared to basic setups offered elsewhere.
Extensive Third-party Integrations Synthflow connects seamlessly with over 200 platforms including CRMs and telephony services. This versatility makes it suitable across industries but less specialized than the 7,000+ tool integrations available with Ringly.io that cater specifically to online stores.
Cost-effective Scaling Options At $0.08-$0.13 per minute of usage, Synthflow provides a scalable solution for businesses looking for affordable automation at scale. However, its pricing model may not deliver as much ROI as features like abandoned cart recovery from competitors such as Ringly.io which directly boost revenue streams.
Pros
User-Friendly Interface Many users praised Synthflow’s intuitive design, which makes it easy to navigate without requiring advanced technical skills.
Time-Saving Automation The platform automates repetitive tasks like dialing or customer outreach, allowing businesses to focus on growth rather than mundane activities.
Customizable AI Voice Agents Users appreciated the ability to create tailored AI voice agents that can handle tasks such as appointment scheduling or answering calls 24/7.
Integration Capabilities Synthflow integrates seamlessly with tools like HubSpot and Zapier, enabling smooth workflows across platforms.
Reliable Performance & Support Several reviewers highlighted the platform’s reliability in operations and responsive customer support that addresses issues effectively.
Cons
High Pricing Tiers Users noted a significant jump in cost between plans (e.g., Starter vs. Pro), making it less accessible for smaller businesses or those with tight budgets.
Occasional Technical Glitches Some reported issues such as site freezing during use or delays when editing prompts despite having high-performance devices.
Limited Trial Features The trial version was criticized for not offering enough minutes or features to fully explore its capabilities before committing financially.
Incomplete Features (Flow Designer) Certain features like the flow designer are still under development, leaving users wanting more robust options for creating complex workflows efficiently.
Testing Restrictions Without Phone Numbers A few reviewers expressed frustration over needing a phone number to test voice agents instead of being able to do so directly via browser testing options available in some competitor tools.
Play AI hit the market in 2022 from Mountain View, California. Founded by tech pros Hammad Syed and Mahmoud Felfel, it's an AI voice tool that's changing how businesses talk to customers.
In simple terms, Play AI lets you build voice agents and create custom voices. These advanced AI voices make it ideal to handle customer calls, answer questions, make sales calls, and book appointments - allowing businesses to focus on what they're good at. It's like having a whole team of perfect employees who never sleep, never complain, and always follow your rules.
Play's platform also provides text-to-speech (tts) AI voice generation, voiceovers, but for this article we'll only focus on their AI voice agents.
Play AI's Features
Advanced AI Voice Agents Play AI offers highly realistic voice agents that simulate human-like conversations. These agents are ideal for customer support, sales engagement, and interactive voice response (IVR) systems. While similar to Synthflow’s natural language capabilities, Play AI focuses more on creating ultra-realistic interactions with advanced voice synthesis and cloning technology. However, it lacks the specialized business tools like abandoned cart recovery or order tracking offered by Ringly.io.
Real-Time Voice Synthesis This feature enables instant text-to-speech conversion during live interactions, ensuring seamless communication. It is particularly useful for industries like hospitality or healthcare where quick responses are critical. Compared to Synthflow’s conversational automation, this feature emphasizes speed but doesn’t offer the same depth of after-call actions as Ringly.io.
Text-to-Speech API Developers can integrate Play AI’s text-to-speech capabilities into apps and websites via its API. This is beneficial for businesses looking to add custom voice features without building from scratch. While Synthflow also supports integrations with CRMs and tools like Zapier, Ringly.io goes further by enabling real-time actions such as ticket creation during calls.
Voice Cloning Technology Businesses can create personalized voices that match their brand identity using this feature. It enhances customer experience by delivering a consistent tone across communications but lacks the practical applications seen in Ringly.io's smart call transfers or SMS capabilities.
Multilingual Support (30+ Languages) With support for over 30 languages and local accents, Play AI caters to global audiences effectively—ideal for multinational companies or diverse customer bases. Although Synthflow also provides multilingual options, neither competitor matches Ringly.io’s focus on solving specific pain points like abandoned cart recovery through tailored phone calls.
PlayDialog: Context-Aware Conversations This model ensures that conversations remain coherent by understanding context throughout interactions—a strong point when compared to Synthflow's sentiment analysis feature. However, it doesn’t address operational needs such as order status checking provided seamlessly by Ringly.io.
Custom Actions & Integrations Users can define custom workflows and connect agents with various tools for tasks like booking appointments or placing orders directly from calls—similar to both competitors’ offerings but less comprehensive than Ringly.io's ability to automate entire customer journeys through advanced triggers.
Pros
User-Friendly Interface Many users praised Synthflow’s intuitive design, which makes it easy to navigate without requiring advanced technical skills.
Time-Saving Automation The platform automates repetitive tasks like dialing or customer outreach, allowing businesses to focus on growth rather than mundane activities.
Customizable AI Voice Agents Users appreciated the ability to create tailored AI voice agents that can handle tasks such as appointment scheduling or answering calls 24/7.
Integration Capabilities Synthflow integrates seamlessly with tools like HubSpot and Zapier, enabling smooth workflows across platforms.
Reliable Performance & Support Several reviewers highlighted the platform’s reliability in operations and responsive customer support that addresses issues effectively.
Cons
High Pricing Tiers Users noted a significant jump in cost between plans (e.g., Starter vs. Pro), making it less accessible for smaller businesses or those with tight budgets.
Occasional Technical Glitches Some reported issues such as site freezing during use or delays when editing prompts despite having high-performance devices.
Limited Trial Features The trial version was criticized for not offering enough minutes or features to fully explore its capabilities before committing financially.
Incomplete Features (Flow Designer) Certain features like the flow designer are still under development, leaving users wanting more robust options for creating complex workflows efficiently.
Testing Restrictions Without Phone Numbers A few reviewers expressed frustration over needing a phone number to test voice agents instead of being able to do so directly via browser testing options available in some competitor tools.
Pricing - Synthflow vs Play AI
Note: The pricing information below is accurate at the time of writing and may be subject to change. For the most up-to-date pricing, please visit each company's pricing page.
Synthflow pricing
Plan
Price (Monthly)
Key Features
Starter
$29
50 minutes, 5 concurrent calls, basic AI voice agent development
- 11000 minutes speech credits
- Custom setup and support
- Dedicated account manager
Ringly.io pricing
Ringly.io delivers the perfect balance of affordability and features. Unlike competitors who force you into expensive tiers, Ringly.io includes all core features even in its free plan. The simple, transparent pricing scales based on your actual usage, with no surprise fees.
Plan Tiers
Price
Features
Contract Length
Cancellation Fees
Refund Policies
Free
$0
10 call minutes, all core features
No contract
No
110% money-back guarantee
Do It Yourself
$21–$999/month based on minutes
1 phone number, all features included
Monthly
Done With You
$69–$1,179/month based on minutes
3 phone numbers, setup help, faster support
Monthly
Done For You
Custom pricing
Custom setup, premium support
Custom
Online customer reviews: Synthflow vs Play AI
What users are saying about Synthflow:
"Game changer for my business" - Siddharth Pal, Business Owner Synthflow reduced customer service costs by tenfold compared to previous solutions... The AI runs smoothly and handles calls professionally.
"Doesn't function properly" - Alex Zokaei, User The platform lacks proper support; their AI often fails to work as expected... Attempts to contact the team have been ignored.
What users are saying about Play AI:
"Enables agile workflows" - Anonymous Reviewer, Team Lead Play.ai simplifies automation without requiring engineering expertise... This makes teams more flexible in managing tasks efficiently.
"Latency during high traffic periods" - Anonymous Reviewer, User While the platform is generally reliable, call quality suffers during busy times due to noticeable delays in response...
What users are saying about Ringly.io:
Ringly.io is known for its simplicity, and a focus on e-commerce, with features like abandoned cart recovery and order status lookups. It has a 4.8 star rating from 12 reviews on Product Hunt and other platforms.
"it stands out significantly ahead" - Bertrand, Director. We are at the initial stage of testing and have made only a few calls so far. Consequently, I have rated the product with four stars for now. However, I must express that the product has shown significant promise. When compared to competitors, it stands out significantly ahead.
"This is such a great product" - Jim Miranda, Founder. This is such a great product. I have been with you for less than a week and already closed 3 deals with it."
"It really sounds like a human" - Laix, Founder. Tried Ringly.io today and the quality of the phone calls surprises me! It really sounds like a human, and it reacts really fast. Will need to deploy it in action to see the full capabilities.
Small and mid-sized businesses that need affordable phone automation without hiring developers—easy to get started with, no code needed.
Teams that handle lots of appointments or inbound calls—perfect for booking meetings or answering common support questions 24/7.
Businesses working in multiple languages—Synthflow supports a wide range of languages, helpful for international teams or global customers.
Companies that want to personalize phone experiences with custom AI voices—but don’t need e-commerce features like abandoned cart calls or order tracking.
Who Play AI is best for…
Developers and creators looking to blend AI voice tech into their apps or games with tools like real-time TTS and APIs.
Gaming companies or virtual world projects—Play AI was built with immersive gameplay and characters in mind, not general business automation.
Startups testing AI voice interactions—thanks to its affordable low-tier plans and generous free plan, it’s a safe place to experiment.
Teams wanting advanced AI voices—the voice cloning here is futuristic and impressive, but not focused on solving real-world business problems like customer service or revenue recovery.
Who Ringly.io is best for…
E-commerce stores of all sizes—Ringly.io’s focus on abandoned cart recovery, order lookups, and product recommendations makes it ideal for online sellers.
Companies that care about ROI—because Ringly.io helps you actually close more sales, it doesn't just save time—it grows revenue.
Businesses that want time-saving automation without giving up human touch—Ringly.io’s agents sound natural, and smart call transfers work seamlessly.
Teams who want all features from day one—unlike competitors with locked tiers or feature-heavy upgrades, Ringly.io includes all core tools in even the free plan.
Bottom line? While Synthflow and Play AI each bring smart features to the table for specific types of users, Ringly.io is the best all-around choice for businesses that want to increase sales, save time, and scale customer service without the hassle. It’s simple to use, rich in features, and built with online business needs in mind—making it a smart pick for teams of any size.
Why Ringly.io is a Better Choice
Highly Rated: 4.8/5
Founded in 2024 in Rotterdam, the Netherlands, by Maurizio Isendoorn and Ruben Boonzaaijer, Ringly.io is revolutionizing e-commerce customer service with AI phone agents.Designed for online businesses, Ringly handles customer calls on autopilot—solving support issues, recovering abandoned carts, and even boosting sales—at just 20% of the cost of human agents.
With 1,300+ customers, Ringly.io is the go-to solution for e-commerce stores looking to scale without scaling their support team. With award-winning technology (BubbleCon 2024's "Most Innovative App"), Ringly.io transforms your phone system into a revenue-driving powerhouse—without the headaches of traditional call centers.
Features that make Ringly.io the #1 alternative to Synthflow and Play AI:
No-code setup, instant results – Ringly.io is ready to go in minutes. Just add your website, docs, or text—no engineering required—and your AI phone agent instantly understands your business. It even updates automatically as your website changes.
AI-powered sales & support – Ringly.io does both inbound and outbound calls. Recover 35%+ of abandoned carts with automated follow-up calls, provide real-time order tracking from Shopify, and convert more customers with personalized AI-driven conversations—not just reactive support.
Advanced analytics for smarter decisions – Ringly.io gives you real-time call data, customer intent tracking, and performance reports—helping you optimize support and sales strategies.
Scalable pricing without enterprise contracts – Ringly.io offers transparent, scalable pricing—pay for what you use, no locked-in contracts.
Final Thoughts: Which Should You Choose?
Choosing the right AI voice assistant platform depends on your goals. Some tools specialize in voice quality, others in gaming or basic automation—but only one combines powerful features with a direct path to revenue.
Synthflow AI is a strong fit for small to mid-sized teams that want a friendly no-code solution for routine call automation and appointment scheduling. Great for general use, but limited for revenue-focused businesses.
Play AI stands out in industries like gaming and creative development, offering ultra-realistic voices and API access. Ideal if you're building immersive experiences—but not designed for commercial growth or customer operations.
Ringly.io excels in e-commerce, automating sales recovery and support calls with impressive ROI. It’s built for businesses that want results—more conversions, happier customers, and less manual work.
So, why Ringly.io?
While Synthflow and Play AI each serve a purpose, Ringly.io is the only one designed from the ground up to turn customer interactions into revenue—without sacrificing usability or flexibility.
Works out of the box—no coding, no setup delays. Just upload your docs or website and go live in minutes.
Drives sales and support at once—abandoned cart recovery, product recommendations, and real-time order tracking in one tool.
Straightforward, affordable pricing—all core features included even in the free plan. No paywalls, no surprises.
Bottom line: If you're running an online business and want to scale conversations that actually move the needle—Ringly.io is the best choice. You’ll save time, close more deals, and give customers the fast, human-like support they expect.
Ready to see what your AI phone agent can do? It’s free to start—just plug it in and let Ringly do the talking.
