Smooth Slowmo: Slow Motion

Speed Curve & Video Editor

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Real optical-flow slow motion, now on speed ramps too. Shape a curve, tap Smooth, export in 4K. First smooth export free — Pro is a one-time purchase. Turn any clip into cinematic slow motion — with real in-between frames, not the juddery frame-duplication every other editor gives you. SMOOTH SLOW MOTION, DONE PROPERLY Most apps slow video down by repeating frames. Smooth Slowmo generates brand-new frames between the real ones using optical flow, so even a 0.2× shot stays fluid instead of stuttering. SPEED, YOUR WAY • Normal — dial any constant speed from 0.1× to 10× on a precision ruler • Curve — drop beats on a timeline and shape a ramp that slows down and speeds back up exactly where you want it • Smooth follows the whole curve, not just the slowest point A REAL EDITOR, NOT A FILTER • Trim first, so you only work the part that matters • Live preview with scrub, loop and a full-screen player • Mute the audio, or let the pitch drop with the speed • Export at 720p, 1080p, 4K or original quality • Saves straight to Photos — no watermark, ever FREE AND PRO Everything in the editor is free: every speed, every curve, every resolution, and nothing stamped across your footage. Your first smooth slow-motion export is free as well. After that, unlimited smooth exports are a one-time purchase — no subscription, nothing to cancel. HOW IT WORKS 1. Pick a clip and trim it 2. Choose a speed, or shape a ramp with beats 3. Tap Smooth, then export Privacy Policy: https://devstox.com/privacy-policy Terms of Use: https://devstox.com/terms-of-service Apple's EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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The developer, Qasim Ali, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Seller
    • Qasim Ali
    Size
    • 11.7 MB
    Category
    • Photo & Video
    Compatibility
    Requires iOS 26 or later.
    • iPhone
      Requires iOS 26 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 @ Devstox
  • Developer Website
  • Privacy Policy

    • More by Qasim Ali

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