Vidulk is an AI-powered mobile app for iOS and Android that turns long videos and audio into viral short-form clips. It also includes an AI image studio and professional caption editor.

How does AI clip detection work?

Import a video or paste a link — Vidulk transcribes the audio using AI speech recognition that supports 99 languages, then analyzes the transcript to find the most engaging moments. Each clip is scored by virality potential and categorized as Insight, Story, Funny, Tactical, Controversial, or Emotional.

What languages does Vidulk support?

Vidulk supports speech recognition in 99 languages including English, Spanish, French, German, Korean, Japanese, Chinese, Arabic, Hindi, Portuguese, and many more. The app interface is available in over 30 languages. Language is detected automatically.

What caption and editing features are available?

Vidulk includes 7 caption styles (Highlight, Karaoke, Typewriter, Minimal, Bold Pop, Gradient, and more), customizable fonts, colors, and animations. Export in multiple aspect ratios (9:16 for Shorts/Reels, 1:1 Square, 4:5 Portrait, 16:9 Landscape) at up to 4K resolution.

What is the AI Image Studio?

AI Studio lets you generate thumbnails and images from text prompts with 6 artistic styles including Realistic, Illustrated, Abstract, Minimalist, Anime, and Watercolor. It also includes an Image Enhancer that upscales images 2x or 4x. All processing happens on-device for privacy.

What content types does Vidulk work with?

Vidulk is optimized for podcasts, YouTube videos, interviews, lectures, gaming highlights, vlogs, music, sports, and news content. Import from YouTube, TikTok, Instagram, Twitter/X, Facebook, or upload directly from your camera roll.

Does Vidulk work with long videos?

Yes. Vidulk handles videos of any length. Short videos are processed on-device, while longer videos (over 5 minutes) are processed using server-side AI for faster and more reliable results.

What platforms is Vidulk available on?

Vidulk is available on both iOS (App Store) and Android (Google Play Store). The app interface is available in over 30 languages.

Yes. Video transcription and AI image processing happen on-device. Your videos are not stored on external servers permanently. You can delete your account and all data at any time from the app settings.

Can I use Vidulk for audio-only content like podcasts?

Yes. Vidulk fully supports audio-only content. Import MP3, M4A, WAV, or other audio files. AI detects the best moments and you can add AI-generated background images or choose from 1,200+ built-in backgrounds to create video clips from audio.

Can Vidulk remove captions or subtitles from videos?

Yes. Vidulk includes AI-powered caption removal that automatically detects and removes burned-in captions and subtitles from your videos before clipping. It works best with dynamic/moving captions like those on TikTok, Reels, and YouTube. Enable it with a simple checkbox when importing your video. Processing takes 7-20 minutes and uses additional credits based on video length.

How do I export clips from Vidulk?

After editing, choose your aspect ratio (9:16, 1:1, 4:5, or 16:9), resolution (720p, 1080p, or 4K), and export. Clips are saved directly to your Photos library and can be shared instantly to any platform.

Opus Clip vs Klap: Which AI Video Clipper Is Right for You?

Choosing between Opus Clip and Klap depends on your workflow, budget, and platform needs. Here’s a direct comparison, plus a look at a mobile-first alternative for creators.

Opus Clip vs Klap vs Vidulk (as of 2026-08)
	Opus Clip	Klap	Vidulk
Platforms	Web, iOS, Android	Web	iOS, Android
Primary use	AI long-to-short clipping for podcasts/talking-head video…	AI long-to-short clipping for creators/podcasts (virality-ranked…	Mobile AI clipping
AI finds the best moments	Yes	Yes	Yes
Auto captions	Yes	Yes	Yes
Free plan	Yes	No	Yes (credits)
Watermark on free	Yes	No	See app
Starting paid price	$15/mo (Starter, 150 credits/mo, monthly billing as…	$14/mo billed yearly (Basic, 100 clips/mo); $29/mo billed…	Pay-as-you-go credits
Mobile app	Yes	No	Yes

Sources: https://www.opus.pro/pricing · https://klap.app/pricing. Prices/limits change - verify with the vendors.

Opus Clip vs Klap - Honest Head-to-Head for Creators

Features: Where Each Tool Excels

Opus Clip and Klap both use AI to find the best moments in long videos and auto-generate short, captioned clips for social platforms.
Opus Clip offers a virality score, limited AI/stock B-roll, and supports posting directly to Shorts, TikTok, and Instagram on paid plans. Klap ranks clips by virality and includes auto-posting and analytics for all plans.
Klap supports up to 4K exports (Pro+) and AI dubbing in 29 languages on higher tiers. Opus Clip supports up to 1080p (Starter) and all aspect ratios (Pro).

Pricing and Free Plans

Opus Clip offers a free plan with 60 minutes of processing per month, but applies a watermark to exports. Paid plans start at $15/month for 150 minutes, with watermark-free exports and more import options.
Klap does not have an ongoing free plan. You can try one video for free; paid plans start at $14/month (billed yearly) for 100 clips, with no watermarks on any plan.
Both services use a credit/clip system. Klap’s monthly billing is higher than yearly. Opus Clip’s free exports and storage expire after 3 days.

Platform Support and Workflow

Opus Clip runs on web, iOS (iOS 16+), and Android. Klap is web-only; apps in app stores are unrelated third parties.
Opus Clip allows local uploads (up to 10GB) and, on paid plans, imports from YouTube, Drive, and more. Klap supports videos up to 3 hours on Pro+ plans.
Neither tool is ideal for editing on-the-go unless you use Opus Clip’s mobile apps, but those require recent devices.

Who Each Tool Is For

Podcasters and talking-head creators who want a free plan or need mobile access may prefer Opus Clip, especially for quick mobile workflows.
Marketers and agencies who need watermark-free exports, multi-account analytics, and higher-quality output may lean toward Klap, provided they’re fine with web-only access and no free ongoing tier.
Gamers and streamers should check which import sources are supported and whether their workflow fits local uploads or cloud sources.

The Mobile-First Alternative: Vidulk

If you want a truly mobile-first experience, Vidulk offers a free AI-powered clipper app for iOS and Android. Paste a video link or upload a file, and Vidulk’s AI finds the best moments and generates short, vertical, captioned clips for TikTok, Shorts, and Reels. Vidulk uses a credit system, with free and pay-as-you-go options, making it ideal for creators who need to edit on their phone or tablet.

Or skip the desktop tools - Vidulk clips, reframes and captions on your phone. Free to start on iOS and Android.

Try Vidulk

FAQ

Does Klap offer a free plan?

No, Klap does not have an ongoing free plan. You can process one video for free as a trial, but all regular use requires a paid subscription.

Are there watermarks on free exports with Opus Clip or Klap?

Opus Clip applies a watermark to exports on its free plan. Klap does not add watermarks to any exports, even on the trial.

Which service works on mobile devices?

Opus Clip has iOS and Android apps (iOS 16+ required). Klap does not have official mobile apps. Vidulk is designed for both iOS and Android.

Who should use Opus Clip vs Klap?

Opus Clip suits those needing a free plan or mobile support. Klap is better for agencies or marketers needing watermark-free, high-quality exports and analytics.

What’s the best option for editing video clips on mobile?

Vidulk is a dedicated mobile-first AI clipper for iOS and Android, making it the best choice for creators who want to work entirely from their phone or tablet.