Link copied to clipboard # Retell AI vs Synthflow Comparison - What are their main differences? Share [ Export ](/compare/retell-ai/synthflow/export.csv) Retell AISynthflow[+ Add Product](#) Pricing **Retell AI** Free Trial **$0.07** 1 Minute · Pay as you go **Synthflow** Free Trial **Contact Us** · Enterprise **Pricing Insights** from reviews Time to Implement **Retell AI** 1 month Based on 16 responses **Synthflow** 1 month Based on 167 responses Return on Investment **Retell AI** 5 months Based on 16 responses **Synthflow** 4 months1 month sooner Based on 167 responses Perceived Cost **Retell AI** $$$$$ **Synthflow** $$$$$ Average Discount **Retell AI** 6% **Synthflow** 6% **Pros & Cons** from reviews **Retell AI** [ Ease of Use (495) ](https://www.g2.com/products/retell-ai/reviews?filters%5Bsentiment_snippet%5D=1949850&qs=pros-and-cons#reviews)[ Helpful (144) ](https://www.g2.com/products/retell-ai/reviews?filters%5Bsentiment_snippet%5D=2242461&qs=pros-and-cons#reviews)[ Missing Features (116) ](https://www.g2.com/products/retell-ai/reviews?filters%5Bsentiment_snippet%5D=1949874&qs=pros-and-cons#reviews)[ Expensive (87) ](https://www.g2.com/products/retell-ai/reviews?filters%5Bsentiment_snippet%5D=2242559&qs=pros-and-cons#reviews) **Synthflow** [ Ease of Use (364) ](https://www.g2.com/products/synthflow/reviews?filters%5Bsentiment_snippet%5D=1984807&qs=pros-and-cons#reviews)[ Setup Ease (148) ](https://www.g2.com/products/synthflow/reviews?filters%5Bsentiment_snippet%5D=1984803&qs=pros-and-cons#reviews)[ Expensive (145) ](https://www.g2.com/products/synthflow/reviews?filters%5Bsentiment_snippet%5D=1984795&qs=pros-and-cons#reviews)[ Cost Limitations (97) ](https://www.g2.com/products/synthflow/reviews?filters%5Bsentiment_snippet%5D=1984811&qs=pros-and-cons#reviews) Integrations **Retell AI** [ ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_07314eda85557677e4abd7e6334ea397/asterisk.png "Product Avatar Image") Asterisk ](https://www.g2.com/products/asterisk/reviews)[ ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_b8c3daf65d785cff1c07ec2cb7c4205a/elevenlabsio.png "Product Avatar Image") ElevenLabs ](https://www.g2.com/products/elevenlabsio/reviews)[ ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_e2894f5a2f0d4a7de385125b178b4e11/five9-intelligent-cloud-contact-center-platform.png "Product Avatar Image") Five9 Intelligent Cloud... ](https://www.g2.com/products/five9-intelligent-cloud-contact-center-platform/reviews)[ ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_2a795ead4f265cb7ca18aaa34a6665c5/vitech-corporation-genesys.png "Product Avatar Image") Genesys ](https://www.g2.com/products/vitech-corporation-genesys/reviews)[ View all ](https://www.g2.com/products/retell-ai/integrations) **Synthflow** [ ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_d53380e8118074645ef10f7edad1a2b3/adalo.png "Product Avatar Image") Adalo ](https://www.g2.com/products/adalo/reviews)[ ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_c604389025447ffd01314b51a50224a4/callcenterhosting-auto-dialer-software.jpg "Product Avatar Image") Auto Dialer Software ](https://www.g2.com/products/callcenterhosting-auto-dialer-software/reviews)[ ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_a8e4bb7370acc402f5ddc1ba6d149e7e/autosheet.png "Product Avatar Image") Autosheet ](https://www.g2.com/products/autosheet/reviews)[ ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_2ea41747b9b3109d51918cd260f38fbf/cal-id.png "Product Avatar Image") Cal ID ](https://www.g2.com/products/cal-id/reviews)[ View all ](https://www.g2.com/products/synthflow/integrations) Screenshots **Retell AI** ![Retell AI screenshot](https://images.g2crowd.com/cdn-cgi/image/width=600,height=600,fit=scale-down,format=auto,onerror=redirect,/https://images.g2crowd.com/uploads/attachment/file/1484592/0qwerwe.jpg) **Synthflow** ![Synthflow screenshot](https://images.g2crowd.com/cdn-cgi/image/width=600,height=600,fit=scale-down,format=auto,onerror=redirect,/https://images.g2crowd.com/uploads/attachment/file/1415649/1.png) **Ratings** from reviews Meets Requirements **Retell AI** 9.0 9.068 **Synthflow** 8.5 8.5952 Ease of Use **Retell AI** 8.9 8.92,602 **Synthflow** 8.5 8.5988 Ease of Setup **Retell AI** 8.9 8.969 **Synthflow** 8.1 8.1981 Ease of Admin **Retell AI** 9.1 9.143 **Synthflow** 8.2 8.2565 Quality of Support **Retell AI** 8.4 8.461 **Synthflow** 7.8 7.8821 Has the product been a good partner in doing business? **Retell AI** 9.0 9.041 **Synthflow** 8.2 8.2503 Product Direction (% positive) **Retell AI** 9.6 9.658 **Synthflow** 9.4 9.4956 **Features** ratings from reviews AI Agents For Business Operations 8.4 39 8.0 665 AI Sales Assistant 7.9 18 8.0 275 AI Voice Assistants 8.4 29 8.0 209 AI Customer Support Agents 8.6 13 Not enough data AI Agent Builders 9.0 7 Not enough data User Insights **Reviewers' Company Size** Small-Business(50 or fewer emp.) 84.9% Mid-Market(51-1000 emp.) 15.1% Enterprise(\> 1000 emp.) 0% Small-Business(50 or fewer emp.) 84.9% Mid-Market(51-1000 emp.) 15.1% Enterprise(\> 1000 emp.) 0% Small-Business(50 or fewer emp.) 92.8% Mid-Market(51-1000 emp.) 6.8% Enterprise(\> 1000 emp.) 0.4% Small-Business(50 or fewer emp.) 92.8% Mid-Market(51-1000 emp.) 6.8% Enterprise(\> 1000 emp.) 0.4% **Reviewers' Industry** [![Retell AI](https://images.g2crowd.com/uploads/product/hd_favicon/6c40b034868e5f32a34fc109f6ad8e03/retell-ai.svg "Retell AI")](https://www.g2.com/products/retell-ai/reviews) Retell AI Information Technology and Services 9.0% Computer Software 8.7% Consulting 7.4% Marketing and Advertising 6.7% Real Estate 6.0% Other 62.1% [![Synthflow](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_0bd7715d2c8e77ca7563b06f39e8b90c/synthflow.png "Synthflow")](https://www.g2.com/products/synthflow/reviews) Synthflow Marketing and Advertising 17.5% Information Technology and Services 7.2% Real Estate 6.9% Computer Software 6.5% Consulting 6.4% Other 55.5% FAQs ## Retell AI vs Synthflow FAQs Generated using AI Last updated: August 16, 2026 ### What is the difference between Retell AI vs Synthflow? Retell AI stands out for higher reviewer satisfaction across setup, support, and overall experience compared to Synthflow. | | [Retell AI](https://www.g2.com/products/retell-ai/reviews) | [Synthflow](https://www.g2.com/products/synthflow/reviews) | | --- | --- | --- | | G2 Rating (reviews) | 4.8/5 (2,638 reviews) | 4.5/5 (1,015 reviews) | | Largest Segment | Small-Business | Small-Business | | Ease of Setup score | 8.8 | 8.1 | | Quality of Support score | 8.3 | 7.8 | | Top Reviewer-Cited Strength | Super simple to use, highly customizable, and strong integrations | Ease of use and intuitive flow builder | ### How do the pricing models of Retell AI and Synthflow compare? Retell AI is rated higher for value, with reviewers expressing greater satisfaction with its pricing compared to Synthflow. - **Retell AI:** Reviewers highlight transparent pricing and a pay-as-you-go model that is appreciated for flexibility, though some mention costs can rise with call volume. - **Synthflow:** Reviewers frequently cite cost limitations and expensive higher tiers, especially for features like bringing your own phone number, with 145 all-time mentions of "Expensive" and 97 for "Cost Limitations". - **Switching reasons:** Recent reviews mention switching to Retell AI for more transparent pricing and better value at scale. ### What are the best alternatives to Retell AI and Synthflow? The top three alternatives to Retell AI and Synthflow are ElevenLabs, Murf.ai, and GHL. | Product | G2 Rating (reviews) | Largest Segment | Pricing Insight | Top Reviewer-Cited Strength | | --- | --- | --- | --- | --- | | [Retell AI](https://www.g2.com/products/retell-ai/reviews) | 4.8/5 (2,638 reviews) | Small-Business | Transparent pricing, flexible pay-as-you-go | Highly customizable, easy setup, strong integrations | | [Synthflow](https://www.g2.com/products/synthflow/reviews) | 4.5/5 (1,015 reviews) | Small-Business | Cost limitations at higher tiers | Intuitive flow builder, easy integrations | | [ElevenLabs](https://www.g2.com/products/elevenlabsio/reviews) | 4.5/5 (1,175 reviews) | Small-Business | — | Natural-sounding voice synthesis | | [Murf.ai](https://www.g2.com/products/murf-ai/reviews) | 4.7/5 (1,414 reviews) | Small-Business | — | High-quality voice generation and editing | ### Which AI Agents For Business Operations features should I prioritize when comparing Retell AI and Synthflow? Buyers should prioritize ease of setup, integration capabilities, voice quality, workflow customization, and support responsiveness when comparing Retell AI and Synthflow. - **Ease of Setup:** Retell AI scores 8.8, Synthflow 8.1; 148 all-time mentions for Synthflow's setup ease. - **Integration Capabilities:** Retell AI integrations mentioned in 457 reviews for Make, 89 for GHL, 65 for n8n; Synthflow integrations cited in 207 reviews for Make, 63 for GHL, 31 for Twilio. - **Voice Quality:** Retell AI is praised for natural, human-like voices in recent reviews; Synthflow receives positive feedback for natural-sounding voice synthesis. - **Workflow Customization:** Retell AI is noted for a highly customizable workflow builder; Synthflow is recognized for its intuitive flow builder and customizability (40 all-time mentions). - **Support Responsiveness:** Retell AI scores 8.3, Synthflow 7.8 on Quality of Support. ### What are the pros and cons of Retell AI vs Synthflow? Retell AI's headline strength is its ease of use and customization, while Synthflow is most praised for its intuitive flow builder and integrations. - **Retell AI strengths:** Super simple to use, highly customizable, natural-sounding voices, strong integrations, and rapid setup. - **Retell AI trade-offs:** Some reviewers mention pricing can increase with call volume and a desire for more ready-to-use templates. - **Synthflow strengths:** Intuitive flow builder, easy integrations (143 all-time mentions), user-friendly interface (100 mentions), and efficient automation (64 mentions). - **Synthflow trade-offs:** Reviewers cite cost limitations (97 mentions), expensive higher tiers (145 mentions), integration issues (34 mentions), and a learning curve (59 mentions). ### Is Retell AI or Synthflow better for small businesses? Retell AI is the better fit for small businesses, with higher satisfaction among small-business reviewers and a stronger overall rating. - **Retell AI:** Largest segment is Small-Business; reviewers consistently highlight ease of use, rapid setup, and strong value for small teams. - **Synthflow:** Largest segment is Small-Business; reviewers note ease of use and intuitive setup, but also mention cost limitations and integration challenges for small businesses. ### Which AI Agents For Business Operations platform has better integrations? Retell AI is favored for integrations, with higher all-time mention counts and broader third-party tool support in reviews. - **Retell AI:** Make (457 all-time mentions), GHL (89), n8n (65); reviewers highlight robust integration options and workflow automation capabilities. - **Synthflow:** Make (207), GHL (63), Twilio (31); reviewers note easy integrations but cite some limitations and issues with certain third-party tools. ### How do Retell AI and Synthflow compare on customer support? Retell AI and Synthflow are close on Quality of Support, with Retell AI scoring 8.3 and Synthflow 7.8, a difference below the materiality threshold, indicating near parity. - **Retell AI:** Reviewers describe support as responsive and helpful, with positive experiences in onboarding and troubleshooting. - **Synthflow:** Reviewers report generally good support, though some mention delays or limited help at lower tiers, especially for complex integrations. ### Which is easier to implement, Retell AI or Synthflow? Retell AI leads on Ease of Setup with a score of 8.8 versus Synthflow's 8.1, a difference above the materiality threshold. - **Retell AI:** Reviewers consistently praise the intuitive interface, rapid onboarding, and minimal technical barriers to implementation. - **Synthflow:** Reviewers note an easy initial setup and user-friendly flow builder, but some mention a steeper learning curve for advanced features and integration setup. ### Which product has better Integration? Retell AI is the stronger product for Integration, with higher reviewer satisfaction and broader integration support. - **Retell AI:** Integration is the most frequently mentioned feature, with 457 all-time mentions for Make, 89 for GHL, and 65 for n8n; reviewers highlight robust integration capabilities and workflow automation. - **Synthflow:** Integration is also a key feature, with 207 mentions for Make, 63 for GHL, and 31 for Twilio; reviewers note easy integrations but cite some limitations and issues with certain third-party tools. 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