Find the right AI tool for the job

SteosVoice

by Business Intellect

AI text-to-speech with 800+ voices (formerly CyberVoice).

Best for: Video & Audio

Pricing: Freemium

StepFun

by StepFun

Shanghai lab behind the Step models and the StepChat assistant

Best for: Exploring a rising Chinese multimodal lab

Pricing: Freemium

Limitation: Little-known outside China

Steve

AI competitive intelligence that tracks competitors and builds battlecards.

Best for: Marketing & Sales

Pricing: Paid

Limitation: No public pricing information

Steve AI

by Animaker Inc.

AI video platform from Animaker that turns text, audio, or ideas into videos in minutes across animation, live, and generative styles.

Best for: Steve AI (by Animaker) converts prompts, scripts, blogs, URLs, audio, and images into professional videos in minutes.

Pricing: Freemium

Limitation: AI-generated scripts can feel generic and lack deep industry insight

StewAI

Marketplace of pre-tested AI workflow recipes that plug into Claude and ChatGPT to handle demanding tasks with fewer agent tokens.

Best for: Automation & Agents

Pricing: Paid

Limitation: Recipe runs cost credits, so cost depends on task and reuse.

Stey

by Stey.ai

AI-assisted user-behavior replay and website analytics that surface UX problems.

Best for: Education & Learning

Pricing: Freemium

Limitation: Younger and less established than category leaders like Hotjar and FullStory

Stillgram

AI travel camera app that removes crowds and photobombers from your vacation photos

Best for: Image & Design

Pricing: Freemium

Limitation: iOS only

Stippl

by Stippl

All-in-one AI trip planner with itinerary builder, budget tracking, group expense splitting and travel reels.

Best for: Lifestyle

Pricing: Freemium

Limitation: AI recommendations less specific than some dedicated planners

Stirling

AI ad studio that turns a product URL into conversion-tested Meta ads in about a minute.

Best for: Marketing & Sales

Pricing: Paid

Limitation: Focused on static image ads, not video ads

Stitch Fix

by Stitch Fix

Online personal styling service combining AI recommendations with human stylists for curated clothing boxes.

Best for: Image & Design

Pricing: Paid

Limitation: Styling fee model adds cost

StitchDesk

by StitchDesk

AI management platform for upholstery shops.

Best for: Productivity

Pricing: Freemium

Limitation: Niche: upholstery industry only

StockImg AI

by Stockimg.ai

AI image and design generator for stock-style visuals.

Best for: Image & Design

Pricing: Freemium

Limitation: Free credit is tiny

StockInsights AI

by Serendib Labs Technologies Pvt Ltd

AI equity research assistant for filings, earnings calls, and due diligence.

Best for: Business & Data

Pricing: Freemium

Limitation: Limited to US and India markets

StockMusic

by StockMusic

AI-generated royalty-free background music for creators and brands.

Best for: Video & Audio

Pricing: Freemium

Limitation: Shorter max track lengths on lower tiers

StockmusicGPT

by Aivio Studio, LLC

AI generator for royalty-free stock music, sound effects, and covers.

Best for: Video & Audio

Pricing: Freemium

Limitation: Single critical review on some directories

StoreLocale

by StoreLocale

AI screenshot localisation for App Store and Google Play: a vision model detects UI strings, translates them and repaints them in place across 30+ languages, exported as a store-ready ZIP.

Best for: App developers localising store screenshots who want the in-app UI translated, not just the captions

Pricing: Freemium

STORI AI

by STORI AI

AI brand storytelling and identity platform for building your brand narrative.

Best for: Image & Design

Pricing: Freemium

Limitation: Newer platform with a smaller user community

StoriesForKids.ai

AI personalized children's books with illustrations.

Best for: Education & Learning

Pricing: Freemium

Limitation: Story depth varies

Stork.ai

Pay-per-use AI image tools — upscaler and room redesign, no subscription.

Best for: Image & Design

Pricing: Freemium

Limitation: Per-photo cost adds up for volume

STORM

by Stanford

Stanford's open-source AI that writes cited research reports on any topic.

Best for: Education & Learning

Pricing: Open Source

Limitation: Research prototype, not a polished product

Stormy AI

Influencer and social data API built for AI agents and automation.

Best for: Marketing & Sales

Pricing: Paid

StoryAI

AI story generator that creates interactive personalized tales.

Best for: Writing & Content

Pricing: Freemium

Limitation: Pricey subscription for stories

StoryBee

AI story generator that creates personalized audio stories for kids.

Best for: Education & Learning

Pricing: Paid

Limitation: No free plan, subscription only

Storyboard Hero

by Storyboard Hero

AI storyboard generator for video agencies and creators.

Best for: Video & Audio

Pricing: Freemium

Limitation: Subscription required for ongoing use