--- description: Review of ThunderPhone Software: system overview, features, price and cost information. Get free demos and compare to similar programs. image: https://gdm-localsites-assets-gfprod.imgix.net/images/software_advice/og_logo-55146305bbe7b450bea05c18e9be9c9a.png title: ThunderPhone | Reviews, Pricing & Demos - SoftwareAdvice GB --- Breadcrumb: [Home](/) > [Conversational AI Platforms](/directory/4010/conversational-ai-comparison/software) > [ThunderPhone](/software/689149/ThunderPhone) # ThunderPhone Canonical: https://www.softwareadvice.co.uk/software/689149/ThunderPhone > ThunderPhone is a self-serve platform for building AI phone agents, with usage-based pricing starting at $0.02 per minute — models included, so there are no separate LLM, transcription, or voice bills. Its Storm tier with the extra-intelligence option scores 99.4% on Big Bench Audio — the top score on the Artificial Analysis leaderboard — with the evaluation set public on Hugging Face. Teams build agents in a no-code builder or via API, test them like software with AI-caller simulations and regression suites, and monitor live calls with the ability to steer conversations in real time. Production monitoring automatically detects issues in calls and proposes fixes. ThunderPhone handles inbound and outbound calls for customer support, scheduling, pre-sales intake, and reminders, with TCPA-compliant outbound calling, voicemail detection, and warm transfers. It supports 47 languages with mid-call language switching, captures details like addresses and product codes accurately even amid noise and accents, and connects to existing telephony via SIP trunking or provisions phone numbers directly. ThunderPhone is HIPAA and GDPR compliant, offers API and MCP access, and has a live demo on its homepage. > > Verdict: Rated **5.0/5** by 1 users. Top-rated for **Likelihood to recommend**. ----- ## Quick Stats & Ratings | Metric | Rating | Detail | | **Overall** | **5.0/5** | 1 Reviews | | Ease of Use | 5.0/5 | Based on overall reviews | | Customer Support | 5.0/5 | Based on overall reviews | | Value for Money | 5.0/5 | Based on overall reviews | | Features | 5.0/5 | Based on overall reviews | | Recommendation percentage | 100% | (10/10 Likelihood to recommend) | ## About the vendor - **Company**: ThunderPhone ## Commercial Context - **Starting Price**: US$0.02 - **Pricing model**: Usage Based (Free Trial) - **Pricing Details**: Usage-based, pay-as-you-go pricing with models included — no separate LLM, transcription, or voice bills. Tiers: Spark $0.02/min · Bolt $0.05/min · Storm $0.09/min. Optional extra-intelligence add-on +$0.03/min. Premium TTS surcharge: Chirp +2¢/min, Cartesia +3¢/min. Free trial available; no free tier. - **Target Audience**: Self Employed, 2–10, 11–50, 51–200, 201–500, 501–1,000, 1,001–5,000, 5,001–10,000, 10,000+ - **Deployment & Platforms**: Cloud, SaaS, Web-based - **Supported Languages**: Arabic, Bangla, Bulgarian, Chinese, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Latvian, Lithuanian, Malayalam, Marathi, Norwegian, Polish, Portuguese, Punjabi, Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swahili, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese - **Available Countries**: Angola, Argentina, Aruba, Australia, Austria, Bahamas, Bahrain, Belgium, Bermuda, Bosnia & Herzegovina, Botswana, Brazil, Bulgaria, Canada, Cayman Islands, Chile, China, Colombia, Costa Rica, Croatia and 68 more ## Features - AI Copilot - AI Survey Builder - AI/Machine Learning - API - API Access for Business System Integration - API Flexibility - Activity Dashboard - Adaptive Follow-Up - Autonomous Task Execution - Autoresponders - Code-free Development - Complex Query Handling - Configurable Workflow - Context Maintenance Within Sessions - Controlled LLM Response Generation - Conversational AI Interviewer - Fallback Responses for Unknown Queries - For Developers - Generative AI - Guardrails & Content Controls ## Integrations (12 total) - Google Calendar - Google Sheets - HubSpot CRM - Plivo - Salesforce Platform - SignalWire - Slack - Telnyx Suite - Twilio - Vonage Business Communications - Vonage Contact Center - Zapier ## Support Options - Email/Help Desk - Knowledge Base - Chat ## Category - [Conversational AI Platforms](https://www.softwareadvice.co.uk/directory/4010/conversational-ai-comparison/software) ## Related Categories - [Conversational AI Platforms](https://www.softwareadvice.co.uk/directory/4010/conversational-ai-comparison/software) - [AI Agents for Customer Support](https://www.softwareadvice.co.uk/directory/5207/ai-agents-for-customer-support/software) ## Reviews ### "Cheap and better than anything else I’ve tried." — 5.0/5 > **Alex** | *1 September 2026* | Machinery | Recommendation rating: 10.0/10 > > **Pros**: Easy to use and very cheap, very high accuracy on phone calls compare to other platforms. The wizards for connecting Voip and other software are a great touch for not having to mess with those connections for a long time to get them to work like on many other voice AI platforms. > > **Cons**: Some minor bugs in the web app here and there, probably since it's new. Weren’t prohibitive to workflow. > > Makes it easy to set up voice agents that talk customers through design feedback when configuring a parts order. ## Links - [View on SoftwareAdvice](https://www.softwareadvice.co.uk/software/689149/ThunderPhone) ## This page is available in the following languages | Locale | URL | | en | | | en-AU | | | en-GB | | | en-IE | | | en-NZ | | ----- ## Structured Data