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The ML category is a broad collection of 674 tools that apply machine learning across industries and functions, from healthcare documentation and legal research to user research, code generation, and content creation. It captures AI applications that do not fit cleanly into a single vertical.

PolyAI

general

Enterprise platform for building voice AI agents

Paid 45 · 38,095 votes

CodeSignal Learn

general

Skills validation and hiring platform

Paid 44 · 25,638 votes

AI Medical Scribe by MarianaAI

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Transcribe patient visits and auto-generate medical notes

Paid 38 · 64,271 votes

Reach Best

general

AI help for university applications

Paid 38 · 56,344 votes

Questera

general

AI agent platform for personalized customer interactions at scale

Paid 37 · 53,890 votes

Text-Enhancer.com

general

Improve text clarity and grammar

Paid 37 · 34,279 votes

AI Editor

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AI-powered text editor SDK for web apps

Paid 36 · 30,575 votes

Looppanel

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Analyze UX research with AI

Paid 36 · 28,740 votes

Root Vocab

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Vocabulary learning app with AI algorithms, games, and progress tracking

Paid 36 · 25,686 votes

Waldo

general

Find information across multiple sources quickly

Paid 36 · 22,276 votes

PREFIT.AI

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Generative search

Paid 35 · 12,997 votes

EssayChecker

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Essay feedback tool

Paid 35 · 12,599 votes

iChatWithGPT

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Use ChatGPT directly in iMessage and Siri

Paid 34 · 10,878 votes

Lucida AI

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Improve business English with AI coaching

Paid 34 · 9,062 votes

AI Parabellum

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Searchable directory of 1,000+ AI tools across 50+ categories

Paid 34 · 8,411 votes

Steno

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AI voice cloning and relationship-building chatbot

Paid 34 · 6,808 votes

ModernQuery

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Add conversational search to your website

Paid 33 · 5,951 votes

Speechlab

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AI dubbing and real-time speech translation

Paid 33 · 3,984 votes

Guest Glance

general

Screen short-term rental guests with AI

Paid 29 · 447 votes

Because this category covers so many domains, browsing by sub-use case is more efficient than scrolling the full list. Tools like Hippo Scribe and SopCreator serve very specific professional workflows, while others like User Evaluation or Userpersona target product and UX teams. The quality bar across the category is uneven: some tools are mature products with enterprise customers, while others are early-stage experiments. When evaluating any tool in this space, look for evidence of actual accuracy and reliability in your specific domain, since ML performance varies dramatically across tasks. Integration depth and data handling are often the deciding factors for business use. Pricing models are diverse, from usage-based API billing to flat-rate SaaS subscriptions. Open-source alternatives exist for many of the underlying tasks, so for teams with technical resources, comparing commercial tools against self-hosted options is worth the effort.