Subtitle Caption Studio

NEXRAVEN Innovations

Contains adsIn-app purchases

About this app

Subtitle Caption Studio is the fastest way to turn your videos and audio recordings into accurate, professional subtitles. Powered by cloud AI speech-to-text, it transcribes and translates your media in seconds — right from your phone. No sign-up. No watermark. No subscription.
🎯 AI SUBTITLE GENERATION
Turn speech into subtitles — automatically. Upload any video or audio file and let cloud AI do the heavy lifting. Subtitle Caption Studio listens, transcribes, and generates perfectly timed captions in seconds.
• Automatic speech-to-text from video or audio
• Smart language auto-detection — no setup needed
• Translate subtitles into other languages
• "Optimized Mode" for even higher accuracy
• Supports long files — up to 60 minutes per generation
✏️ POWERFUL SUBTITLE EDITOR
Full control over every word and moment. Fix a typo, shift timing, or rearrange segments — all without leaving your phone.
• Edit subtitle text segment by segment
• Shift all timestamps at once with one tap
• Insert, delete, or reorder subtitle lines
• Unsaved-changes protection so you never lose edits
🎨 SUBTITLE STYLING STUDIO
Make your captions match your brand with a live preview that shows changes in real time — what you see is what your viewers get.
• 6 ready-made presets: Default, Classic, Bold Yellow, Neon, Minimal & High Contrast
• Custom font size, colors, bold/italic, outline & shadow
• Background box with adjustable opacity
• 9-zone positioning grid + fine-tuning
• Save custom styles and reuse them anytime
• Live preview on your actual video
📤 FLEXIBLE EXPORT OPTIONS
Export clean, professional subtitle files ready for YouTube, Vimeo, social media, or any video editor.
• Export as SRT or WebVTT (VTT)
• Styled captions export with full look-and-feel preserved
• Save to device, email, or share straight to your favorite apps
• No watermark — your content stays 100% yours
📂 OFFLINE SUBTITLE LIBRARY
Every subtitle you make is saved automatically. Come back anytime to view, edit, or re-export past subtitles — without spending another credit and without an internet connection.
• Automatic saving of every generation
• Instant search across your whole library
• One-tap backup & restore between devices
🔗 FREE SUBTITLE MERGER
Combine multiple subtitle files in seconds — completely free, with no credits needed and no internet required.
• Merge up to 10 SRT/VTT files
• Drag-and-drop ordering with a color-coded timeline
• Fix timing offsets per file or globally
• Overlap warnings so nothing collides
🌍 MULTILINGUAL BY DESIGN
Transcribe and translate across 20 languages, including English, Spanish, French, German-free list note: Chinese (Simplified & Traditional), Hindi, Arabic, Bengali, Russian, Portuguese, Indonesian, Urdu, Japanese, Swahili, Marathi, Telugu, Tamil, Vietnamese, Korean, and Italian. The app itself is available in 10 interface languages and detects your device language automatically.
🎁 FREE TO START
New users get free credits to try everything, and returning users can earn more through daily rewards and streak bonuses. Pay-as-you-go top-ups only if you ever need more.
🔒 PRIVATE & HASSLE-FREE
Your privacy comes first. Start using the app instantly — no account, no email, no password. Analytics and crash reporting stay off until you say yes.
• No sign-up ever — open the app and go
• Anonymous, secure wallet that survives reinstalls
• Telemetry is opt-in only
• File processing happens locally on your phone first for speed and privacy
WHO IT'S FOR
• Content creators — YouTube, Instagram, TikTok videos
• Educators & trainers — accessible, captioned lessons
• Journalists & podcasters — turn audio into readable transcripts
• Businesses — multilingual subtitles for corporate video
• Everyone — make your content accessible and reach a wider audience
Download Subtitle Caption Studio today and turn any video or audio into perfect subtitles — in seconds.

What’s new

Updates on 2026-09-12 (Version 3.2.6)
- Performance Patch
- Bug fix
- Add Text Style feature