AI Hay records 8,710,314 monthly visits with +1.5% month-over-month growth and Free pricing. DeVoice records 99,148 monthly visits with +142.9% growth and Freemium pricing.
A friendly Vietnamese AI study assistant for homework, images and everyday questions
Free AI transcription and audio enhancement for video, podcasts, and meetings
| Dimension / Metric | | |
|---|---|---|
| Official Domain | ai-hay.vn | devoice.io |
| Pricing Model | Free | Freemium |
| Monthly Visits | 8.71M (8,710,314) | 99.15K (99,148) |
| MoM Traffic Delta | +125.74K (+1.5%) | +58.33K (+142.9%) |
| Primary Market & Share | 🇻🇳 Vietnam (96.2%) | 🇺🇸 United States (48.8%) |
| Direct Visits / mo | 1.87M | 76.58K |
| User Rating | 3.9 | 4.1 |
| Supported Platforms | Website | Website |
A friendly Vietnamese AI study assistant for homework, images and everyday questions
Ask a question in natural Vietnamese and get explanations covering a wide range of school subjects, framed as guidance rather than a bare answer key.
Work through maths problems and literature or essay tasks with detailed reasoning so students can follow the method, not just the result.
Upload or point at a photo to identify objects, scenes and well-known public figures, using Vietnamese-language context.
Decode internet memes, visual jokes, riddles and trick questions that general-purpose assistants often misread.
Free AI transcription and audio enhancement for video, podcasts, and meetings
Convert uploaded files, public media links, or live recordings into accurate editable text, with automatic language detection across a wide range of languages.
Speakers are labelled automatically so you can tell who said what, and clicking any line jumps the player to that exact moment.
Noise reduction, echo removal, an audio enhancer, an audio extractor, and trimmers let you improve and cut source audio before or after transcribing.
Choose meeting, creator, study-note, podcast show-notes, or legal-style summary structures, and keep transcripts plus summaries stored and searchable.
SpecialistProvides superior reasoning and multi-subject tutoring, but requires custom prompts rather than dedicated study widgets.
SpecialistProvides superior reasoning and multi-subject tutoring, but requires custom prompts rather than dedicated study widgets.
SpecialistOffers massive context windows for analyzing study materials, but lacks dedicated homework solver workflows.
SpecialistOffers massive context windows for analyzing study materials, but lacks dedicated homework solver workflows.
Unlimited AI transcription of audio and video in 98+ languages
Unlimited AI transcription of audio and video in 98+ languages
Offers photo-based math and science homework assistance, though less focused on general presentation and image generation.
Offers photo-based math and science homework assistance, though less focused on general presentation and image generation.
SpecialistCombines crowdsourced study guides with AI homework assistance, but relies more heavily on subscription document unlocks.
SpecialistCombines crowdsourced study guides with AI homework assistance, but relies more heavily on subscription document unlocks.
Provides robust step-by-step homework problem solving and exam prep, but lacks specific Vietnamese localization features.
Provides robust step-by-step homework problem solving and exam prep, but lacks specific Vietnamese localization features.
The musician's app for stem separation, practice and mastering
The musician's app for stem separation, practice and mastering
AI note taker that transcribes, summarizes and visualizes meetings
Turn audio and video into accurate, searchable text in minutes
Turn audio and video into accurate, searchable text in minutes
Live AI interpretation, transcription, subtitles and dubbing in 125+ languages
Live AI interpretation, transcription, subtitles and dubbing in 125+ languages
AI transcription that turns audio and video into searchable text
AI transcription that turns audio and video into searchable text
SpecialistDelivers multilingual conversational homework and translation help via messaging apps, but lacks dedicated study workspaces.
SpecialistDelivers multilingual conversational homework and translation help via messaging apps, but lacks dedicated study workspaces.
