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Alternatives

10 best Prosper alternatives

Tools that cover the same task as Prosper (voice), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.

Prosper starts at
Not listed
Free plan
Free tier unknown
API
API available
  1. 01

    Wattson Health

    Wattson Health provides AI agents for healthcare patient access and engagement, including scheduling, referral follow-up, recovery, recall, reactivation, and staff handoffs. The vendor advertises HIPAA-ready workflows, BAA support, encryption, and role-based access patterns.

    • From $499/mo
    • Free trial
    • API unknown

    Best for: Healthcare access and engagement teams that need AI workflows for scheduling, follow-up, and patient reactivation.

  2. 02

    Assindo

    Assindo is a personal AI agent that makes phone calls, searches the web, posts to social networks, schedules tasks, and executes multi-step workflows from mobile or browser apps. It contrasts with self-hosted agents by offering a managed cloud service without Docker setup.

    • From $9.99/mo
    • Free trial
    • API available

    Best for: Professionals and consumers who want a voice-capable AI agent for calls, research, and social posting without running their own server.

  3. 03

    DialLink's AI Voice Agents

    DialLink combines business telephony, SMS, WhatsApp messaging, and AI voice agents in one platform with local or toll-free numbers in 100+ countries. AI features summarize calls, extract action items, tag intent, and power AiVA agents that handle inbound and outbound conversations across Professional and Enterprise plans.

    • From $15/mo
    • Free trial
    • API available

    Best for: Small businesses that want unified calling, messaging, and AI voice agents without juggling separate phone and chatbot vendors.

  4. 04

    AI Prank Call

    AI Prank Call lets users pick celebrity-style AI voices, write a script, and place phone prank calls billed by the minute. The service highlights a voice library, step-by-step call creation, and subscription plans that include monthly call credits.

    • From $9.99/mo
    • Free tier unknown
    • API unknown

    Best for: Users looking for entertainment prank calls with synthesized celebrity voices rather than business voice agents.

  5. 05

    11ai

    11.ai resolves to ElevenAgents, ElevenLabs’ platform for deploying conversational voice and chat agents across phone, web, WhatsApp, SMS, and email. Teams configure knowledge, workflows, guardrails, and monitoring from a unified builder.

    • From $6/mo
    • Free plan
    • API available

    Best for: Enterprises and startups that need low-latency multilingual voice or chat agents with telephony and workflow tooling.

  6. 06

    Altered

    Altered provides professional AI voice changing software for real-time calls and post-production workflows. Altered Studio focuses on speech-to-speech voice morphing, cloning, and editing, while Real-Time Pro targets gamers, call centers, and voice restoration use cases.

    • From $40/mo
    • Free plan
    • API available

    Best for: Voice creators, streamers, and media teams who need morphing, cloning, and cleanup in both live calls and recorded content.

  7. 07

    echowin

    echowin is an all-in-one platform to build, deploy, and run AI phone and chat agents from one workspace. Teams define agent instructions in plain English, connect tools and workflows, and launch voice, web chat, and WhatsApp channels with conversation analytics and an AI-native CRM.

    • From $45/mo
    • Free plan
    • API available

    Best for: Agencies and operators deploying production AI voice and chat agents with integrations, workflows, and usage-based telephony.

  8. 08

    Castmagic

    Castmagic turns audio and video into transcripts, show notes, social clips, newsletters, and 130+ content outputs with speaker-labeled transcription in 60+ languages. It adds planning agents, studio clipping, audience chatbots trained on episodes, Zapier and RSS imports, plus API and Claude MCP access on higher tiers.

    • From $19/mo
    • Free tier unknown
    • API available

    Best for: Podcasters, marketers, agencies, and media teams repurposing long-form recordings into multi-channel content libraries.

  9. 09

    ListenHub

    ListenHub is a creator platform for AI podcasts, videos, and images using monthly credits. Plans bundle narration, visual generation, and daily check-in bonuses, with optional credit packs between billing cycles.

    • From $12/mo
    • Free tier unknown
    • API unknown

    Best for: Creators and teams producing AI podcasts, short videos, and images who want bundled monthly credits.

  10. 10

    SunoCC AI

    SunoCC.com hosts a Suno AI music generator where users create and download tracks on Free, Basic, and Popular monthly plans. Plans differ by monthly song counts, generation times, download limits, and access to v4.5 and v5 models.

    • From $9.90/mo
    • Free plan
    • API unknown

    Best for: Creators who want an alternative Suno-style generator with straightforward monthly song quotas.

Prosper alternatives: common questions

What is the best free alternative to Prosper?

11ai has an ongoing free plan. Free ElevenAgents plan includes 15 minutes of hosted calls per month Free plans change, so check the vendor before relying on one.

What is the cheapest Prosper alternative?

11ai has the lowest listed starting price at $6/mo.

Which Prosper alternatives have an API?

Assindo, DialLink's AI Voice Agents, 11ai, Altered, echowin mention API or developer access.