Synthflow vs Smith.ai vs Voiceflow vs Retell AI

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
Synthflow
vs
Competitor 1
Smith.ai
Competitor 2
Voiceflow
Competitor 3
Retell AI
Compare
4 tools · best value per row highlighted
Your tool Synthflow
synthflow.ai
Synthflow is an enterprise voice AI platform for automating phone calls with AI agents.
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Competitor Smith.ai
smith.ai
Most businesses lose potential clients because calls go unanswered or get handled poorly
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Competitor Voiceflow
voiceflow.com
Design conversations visually
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Competitor Retell AI
retellai.com
Retell AI is a voice agent platform for automating phone calls.
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Traffic estimated monthly website traffic
Monthly visits
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166.5Kvisits/mo
385Kvisits/mo
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MoM change
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▲ 12.7%
▼ 5.8%
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6-month growth
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+31.1%
-35.3%
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Global rank web
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#267,595
#93,201
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Avg. last 3 months
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143.3K
407.5K
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Bounce rate lower is better
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43%
38%
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Pages / visit
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2.9
5.2
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Visit duration
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49s
3m 07s
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Traffic sources
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● Direct 82% · ● Mail 11%
● Direct 75% · ● Referral 24%
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SynthflowSmith.aiVoiceflowRetell AI
0150K300K450.1K600.1KSmith.ai · 187.2KSmith.ai · 199.1KSmith.ai · 139.1KSmith.ai · 126.9KSmith.ai · 115.9KSmith.ai · 118.1KSmith.ai · 115.7KSmith.ai · 147.6KSmith.ai · 166.5KVoiceflow · 600.1KVoiceflow · 574.1KVoiceflow · 561.6KVoiceflow · 513.7KVoiceflow · 594.8KVoiceflow · 462.6KVoiceflow · 454KVoiceflow · 429.1KVoiceflow · 408.5KVoiceflow · 385K100K1MSmith.ai · 187.2KSmith.ai · 199.1KSmith.ai · 139.1KSmith.ai · 126.9KSmith.ai · 115.9KSmith.ai · 118.1KSmith.ai · 115.7KSmith.ai · 147.6KSmith.ai · 166.5KVoiceflow · 600.1KVoiceflow · 574.1KVoiceflow · 561.6KVoiceflow · 513.7KVoiceflow · 594.8KVoiceflow · 462.6KVoiceflow · 454KVoiceflow · 429.1KVoiceflow · 408.5KVoiceflow · 385KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
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Paid
Freemium
Paid
Starting price
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$150per month
Free tier
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Free tier
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–
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Free trial
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–
API access
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Plans
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—
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Pay as you go CustomEnterprise Custom
Capabilities input → output
Input
AudioText
Audio
DocumentsText
AudioText
Output
AppsAudio
AudioData
Apps
AppsAudio
Skill level
Intermediate
Intermediate
Intermediate
Intermediate
Categories
Business & MarketingAI Call CenterAI Customer Service
Business & MarketingAI Call CenterAI Customer Service
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+3 more
Business & MarketingVoice & SpeechAI Call CenterAI Customer Service+1 more
Tasks what each tool can do · 6 shared · core   partial
Tasks covered
11
8
13
10
Voice agents
Call center automation
Call answering
Calls
Call agents
Customer support
Agent creation
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Customer calls
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Customer support automation
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Agents
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–
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Customer support chatbot
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–
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Receptionist
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–
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Chatbot building
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–
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Chatbots
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–
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Agent testing
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–
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Call analysis
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–
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No-code
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–
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SMS marketing
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–
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Website to chatbot
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–
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 1
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
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–
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.