Synthflow vs Air AI - Which one is best for you? (2024)

May 26, 2024
Josef Büttgen

#1: Synthflow AI - Customizable AI Voice Agents

Synthflow AI is a versatile phone agent platform, similar to Setter AI. It promotes a variety of use cases across different industries, such as real estate, recruitment, and car dealerships. While Setter positions itself as a developer platform, Synthflow offers a more user-friendly experience with an easy-to-use interface and plenty of guidance, including prompt templates for different call objectives. This makes prompting simpler, but users will still need to adjust prompts themselves to fine-tune the AI's behavior to their desired outcomes. Additionally, you need your own Twilio account for making phone calls, which adds to the overall cost per minute.

(+) When to choose Synthflow AI

  • You want to customize prompts and train the AI yourself for complex conversation flows across different use cases.
  • You prefer to configure phone calling services (such as Twilio) yourself.
  • You want access to a variety of prompt templates.

(-) When to not choose Synthflow AI

  • You need flexible pricing options (lowest tier is $29/month, next tier is $450/month).
  • You don’t want to handle prompts, don’t work with a developer team, or need a quick start.
  • You don’t have a Twilio account and don’t want to set up phone connections yourself.

Key Facts

  • Price tiers: $29/month, $450/month, $900/month, $1,400/month
  • Whitelabel solution available for agencies

#2: Air AI - Agency SaaS Platform

Air AI is a SaaS application offering ready-to-use AI phone agents. Although it was one of the first to introduce AI phone agents to the market, it has faced significant customer criticism due to high upfront license fees and a no-refund policy. Trustpilot reviews indicate some issues, with only 2 out of 5 stars. Users mention a poorly functioning service and long implementation times. Although advertised as plug-and-play, reviews suggest that substantial coding knowledge is required for implementation.

(+) When to choose Air AI

  • You prefer to pay a high upfront fee rather than a pay-as-you-go model.
  • You work with an agency that handles the setup and licensing for you.
  • You are an agency looking to resell an AI phone calling platform to your customers.

(-) When to not choose Air AI

  • You don’t want to pay an upfront fee of $25,000-$100,000.
  • You don’t want to be locked into a mandatory commitment period with their SaaS platform.
  • You want to avoid the hassle of coding or integrating APIs.

Key Facts

  • One of the first AI phone agent applications
  • Starting fee ranges from $25,000-$100,000 for agency license holders
  • Predominantly negative customer feedback

#3: Looking for an AI Appointment Setter? Use Setter AI

Setter AI is a user-friendly platform designed for creating AI phone appointment setters without any coding or AI knowledge. The software emphasizes usability and speed, eliminating the need for users to handle any code or prompts. 

Setter AI is specialized for appointment setting but can also be used for other purposes like an AI receptionist and customer support. Its standout feature is the direct calendar integrations (Calendly, Google Calendar) and Zapier integration. This allows connections to over 6000 apps (Facebook Lead Ads, Notion, Stripe, etc.), making it ideal for various appointment setting scenarios, such as quick phone follow-ups on lead form submissions.

(+) When to choose Setter AI

  • You want the AI to book appointments directly to your calendar.
  • You prefer not to handle prompts, don’t work with a developer team, or need a quick start.
  • You are already using popular calendar solutions (Calendly, Google Calendar) and Zapier.

(-) When to not choose Setter AI

  • You need a general-purpose AI phone agent solution beyond appointment setting.
  • You want to set up very complex conversations or workflows.
  • You want to control technical components such as the LLM, voice synthesis, phone connection, etc.

Key Facts

  • Send unlimited calls
  • Integrates with Calendly, Google Calendar, and 6000+ apps via Zapier
  • 3 free credits for trial (1 credit = 1 call minute)
  • Pricing starts at $99/month with 200 credits included
  • 30-day money-back guarantee
  • Per-minute price decreases with higher volume. Book a demo here.

Conclusion

The AI phone agent market offers many choices, each delivering value in different ways. While most people prefer the comprehensive package offered by Setter AI, other platforms like Bland AI, Synthflow AI, Vocode, Retell AI, and Air AI also have appealing features for some buyers.

Setter AI is a user-friendly platform designed specifically for AI phone appointment setting. It requires no coding or AI knowledge, emphasizing usability and speed. Key features include:

  • Direct Calendar Integrations: Connects seamlessly with Calendly and Google Calendar.
  • Zapier Integration: Compatible with over 6000 apps for various appointment-setting use cases.
  • Unlimited Calls: Make as many calls as needed.
  • Trial Credits: 3 free credits to get started (1 credit = 1 call minute).
  • Flexible Pricing: Starts at $99/month with 200 credits included, and per-minute prices decrease with higher volumes.
  • Money-Back Guarantee: 30-day money-back guarantee if not satisfied.

Choose Setter AI if you want an AI to book appointments directly to your calendar without touching any code or prompts.

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