SpecialistAll-in-one mobile and web video editor equipped with built-in AI avatar and captioning tools.
SpecialistAll-in-one mobile and web video editor equipped with built-in AI avatar and captioning tools.
HeyGen records 7,000,070 monthly visits with +9.4% month-over-month growth and Freemium pricing. Liso records 2,388 monthly visits with +52.4% growth and Freemium, Free Trial pricing.

Turn anything you read on the web into audio you can listen to anywhere
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | app.heygen.com | getliso.app |
| Pricing Model | Freemium | Freemium, Free Trial |
| Monthly Visits | 7M (7,000,070) | 2.39K (2,388) |
| MoM Traffic Delta | +599.16K (+9.4%) | +821 (+52.4%) |
| Primary Market & Share | 🇺🇸 United States (18.5%) | 🇺🇸 United States (88.3%) |
| Direct Visits / mo | 4.1M | 744 |
| User Rating | 4.8 | 4.2 |
| Supported Platforms | Website | Website |

Turn scripts into studio-quality AI avatar videos in minutes
Choose from 500+ stock presenters, use photo avatars, or train a custom Video Avatar that looks and sounds like you, then generate narrated videos straight from a script.
Localize one recording into 175+ languages and dialects with editable scripts, brand glossaries, voice switching and proofreading seats for native-language review.
An agentic workflow expands ideas into finished videos, with access to leading generative models for video and image generation on higher plans.
Add quizzes, branching and decision points, embed videos by link, and export SCORM packages so content drops straight into corporate learning systems.

Turn anything you read on the web into audio you can listen to anywhere
Highlight text on any website, right-click and select "Listen with Liso" to convert it to audio in a single step. Pasting text into the app works too.
Choose between several premium AI voices so different types of content — news, essays, newsletters — sound right for the material.
Fine-tune reading pace from 0.75x to 2x to match the content type and how fast you can comfortably follow along.
Download any listen for offline playback, so flights, tunnels and commutes never interrupt your queue.
SpecialistAll-in-one mobile and web video editor equipped with built-in AI avatar and captioning tools.
SpecialistAll-in-one mobile and web video editor equipped with built-in AI avatar and captioning tools.
SpecialistProvides industry-leading voice cloning and speech synthesis for realistic avatar narration.
SpecialistProvides industry-leading voice cloning and speech synthesis for realistic avatar narration.
SpecialistOffers browser-based video creation with AI avatar and voice generation tools.
SpecialistOffers browser-based video creation with AI avatar and voice generation tools.
Text to speech and voice AI across every device
Text to speech and voice AI across every device
Provides accessible AI avatar video creation and talking-head templates, featuring a generous free tier but simpler editing tools.
Provides accessible AI avatar video creation and talking-head templates, featuring a generous free tier but simpler editing tools.
Industry-leading AI avatar creator focusing on corporate training and presentations, though with a different template selection and pricing structure.
Industry-leading AI avatar creator focusing on corporate training and presentations, though with a different template selection and pricing structure.
Free AI text to speech with 200+ voices in 70+ languages
Free AI text to speech with 200+ voices in 70+ languages

SpecialistSpecializes in interactive conversational video agents with personalized memory, going beyond HeyGen's pre-rendered presenter videos.
SpecialistSpecializes in interactive conversational video agents with personalized memory, going beyond HeyGen's pre-rendered presenter videos.
Focuses on real-time conversational digital humans and talking-head videos, offering stronger interactive capabilities than HeyGen's studio builder.
Focuses on real-time conversational digital humans and talking-head videos, offering stronger interactive capabilities than HeyGen's studio builder.
Listen to anything. Beautifully.
Listen to anything. Beautifully.
Converts URLs and scripts into avatar-led marketing videos, offering a simpler workflow tailored for e-commerce ads.
Converts URLs and scripts into avatar-led marketing videos, offering a simpler workflow tailored for e-commerce ads.

Natural AI text to speech with 910+ voices on web, iOS and Android
Natural AI text to speech with 910+ voices on web, iOS and Android