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LivaSub AI Live Captions

Live captions & translation, private and offline

Details

External ID
1259211
Source
PH
Company
—
Product
LivaSub AI Live Captions
Website domain
producthunt.com
Launched
Sept. 24, 2026
Cohort
—
Upvotes
1
Upvotes percentile
0.30815693820825313
Tags
Android, Productivity, Artificial Intelligence
Fetched at
Sept. 25, 2026, 1:01 a.m.
Updated at
Sept. 25, 2026, 1:01 a.m.

Description

LivaSub turns live speech into real-time captions and translations directly on your device. It automatically detects speech, displays floating subtitles, and can keep conversations private without requiring an internet connection. Designed for meetings, travel, classes, and multilingual conversations. Download the language models once, then use live captions and translation offline. Transcripts can also be saved for later review.

Enrichment

Theme
ai translation and localization tools
Vertical
Horizontal
Function
Communication
Audience
Prosumer
AI stance
AI-native
Project type
Commercial product
Normalized one-liner
offline live captions and translation for audio
Manually corrected
False

Could you build this?

Partial Building an iOS app with floating overlays is standard, but doing real-time, low-latency multi-language speech-to-text and translation entirely offline on-device requires optimized ML model pipelines (e.g., CoreML/Whisper variants).

What it would actually take: A developer needs an iOS Swift app utilizing Picture-in-Picture or system overlay tricks for floating subtitles, paired with quantized on-device models like whisper.cpp or Apple's Speech/CoreML frameworks. The challenging part is achieving concurrent multi-language transcription and translation within mobile memory and thermal budgets with sub-second latency. Optimizing CoreML kernels and managing multi-threaded audio buffers offline requires specialized mobile ML engineering.

Competitors

Other products that read as similar to this one — 139 launches clear the similarity bar, closest 8 shown.

Attention rank: #58 of 140 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).

Launched 307 days after the earliest competitor.

Other launches for this product