How to speed up and change the speed of a video on iPhone?

To accelerate video on iPhone, The right method depends on the type of video:

• Normal video (the most frequent case): the Photos app doesn't allow it. Use iMovie (free, from Apple, up to 2×) or CapCut (free, faster and with more settings).
• Video Slo-mo The new Photos app: directly in the Photos app, without installing anything.

Here are the 3 methods in detail, with captures.

How do I change the speed of an iPhone video with iMovie?

iMovie is the’official Apple video editor, free of charge and installed by default on most recent iPhones. It's the easiest way if your video is in normal mode, with two limitations to be aware of:

• Maximum speed is limited to 2×.
• iMovie only available on iOS and macOS (no Android, no Windows).

To go faster or export elsewhere, see CapCut next. Here's how accelerate (or slow down) a normal video with iMovie :

• If you don't have iMovie installed, download it from the App Store. Launch the application, press Create a project, select Movie, then Create a movie after choosing your video.
• In the timeline, press your clip to bring up the tools, then select the speedometer icon. A slider appears, set to 1× by default. Drag it to the right to speed up, to the left to slow down, checking the rendering in the preview.

• When you are satisfied with the setting, press Completed, then on the Share → Save video icon to export it to your film.

How to speed up iPhone video with CapCut?

You want to accelerate a video on your iPhone or iPad but you don't know how to do it with CapCut ? The method is very easy. Here's how it works:

• Go to CapCut, click on the New project and import your media file or video.

• Simply click and drop from the system or download from Google Drive, Dropbox or your mobile device by scanning the QR code and clicking on Add to this list.

• Now, place video in the editing timeline at the bottom of the screen. When you click on the video, an editing tab appears on the side, and right next to Audio, a speed function is visible.

• You can click on the Speed and modify the rhythm to suit your preferences. Options include a normal speed of ×1, ×2, ×5 or more.

Once you've made the required changes, you can customize and insert effects, You can even add background music to your video and enhance it for social networking.

If you have several clips, you can add transitions. All this is included in the CapCut features.

It is then possible to to share this video. Simply export it from the application to your phone.

And now you can accelerate speed of your video already recorded on your iPhone with this application!

Also on the subject of video editing, check out our article : How do I change the aspect ratio of a video with Movavi Video Editor?.

How to speed up video on iPhone using the Photos tool?

⚠ This method only works on videos recorded in Slo-mo mode. If your video is in normal mode, go back to the iMovie or CapCut method.

The easiest way to speed up video on an iPhone is to use the’use the pre-installed photo and video app. The slow-motion videos you record on your iPhone will be stored there. You can speed up your slo-mo video by following these steps:

• First, open Photos application on your iPhone, then search for the video you want to speed up. Then click on Edit, then you will find thespeedometer below the stopwatch. The closely spaced lines show the normal speed, while the spaced lines show the slowest part of the video.

• Visit drag the video onto the vertical bar, and on each side of the desired section to accelerate it.

• Click on Completed to save changes and modify video speed. Normally, the video should record itself.

Which app do you need?

• Just fast acceleration without fine tuning → iMovie.
• More control (speed beyond 2×, curves, effects, text) → CapCut.
• Vertical video ready for TikTok or Reels → CapCut or InShot.

Full comparison table (6 apps, max speed, OS, App Store ratings) in the FAQ below.

FAQs

Can the Photos app speed up a normal video since iOS 18?

Nope. Since iOS 18, The Photos app offers a “Playback Speed” editor for high-frequency videos (60/120 fps), but this is only used to slow down the video, not speed it up.

To speed up a video recorded in normal mode, iMovie or CapCut remain essential in May 2026.

How do I change the section of a video to be played in slow motion?

The process is easy. You need to use Photos application on iPhone. No need to import your video into a third-party application.

• All you have to do isopen video shot in slow-motion mode and press Modify.
• Drag the black vertical bars below the image viewer to select the section to be slowed down.

What applications can be used to modify video speed?

Numerous applications are available for modifying the speed of videos on your iPhone. Some tools are free, others are not. These applications include : Wondershare Filmora.

Download the application via the App Store to edit the video. The advantage of this application is its intuitive interface for speeding up, slowing down and recording videos. You can also make video editing on this application.

Here are some’other alternatives if you do not wish to use this application:

The advantage of third-party applications and non-integrated tools on iPhone is often that you can export your videos as various formats and get the video quality you want.

How do I adjust video playback speed?

Adjust speed and add a more distinctive touch to your iPhone video:

• Access the application Photos on your iPhone.
• Then open your video and press Edit, then on the stopwatch icon (top right) to open the Playback speed menu.

Note :

• You will have different options reading depending on the format in which the video was taken.
• If the format is large, you'll have more options.
• These options depend on the recording format and are mainly used to slow down a video high frequency.

Are there limits to acceleration speed on iPhone?

The acceleration speed depends on the application you're using.

• With iMovie for example, you can accelerate to twice the original speed.
• With CapCut and Wondershare Filmora, But it's possible to go even further and produce faster videos.

Can I keep the original quality of the video by speeding it up on iPhone?

When you use third-party applications such as iMovie Where Filmora, you can obtain a very high-resolution video. Simply select the Original Resolution in the app to maintain the video's original quality.

What happens to audio when video gets faster?

When a video becomes faster, the sound follows the movement and the voice rises in the treble during playback. If you don't like this audio rendering, both iMovie and CapCut allow you to cut the original audio, then add an audio track. background music instead.

Should you worry about your data with these applications?

Before downloading a third-party application, take the time to view its privacy policy and its conditions of use.

Most of these editing tools require access to your photos and certain data in order to function. You can also check and adjust these permissions in your iPhone settings to keep control of your information.

Are all these applications free?

iMovie is completely free on Apple devices. CapCut is free to use for most of its features, but also offers a paid Pro plan that unlocks even more effects and content.

In summary :

• Normal video → iMovie (up to 2×) or CapCut (beyond, with effects).
• Video Slo-mo → l'app Photos, without installing anything.

Do you have a question or a problem? The comments area is open. Feel free to consult other similar articles on our site through the page Tutorial to make sure you don't miss out useful information on a daily basis.