Comparison

Video Speed vs WebP Viewer SAMURAI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Video Speed

Adjust the playback speed of your videos with a simple slider, from half speed up to five times faster. You can also synchronize video speed with an audio file for automatic adjustments. Preview your changes before saving.

Highlights
  • Adjust video playback speed
  • Manual speed control with slider
  • Synchronize video speed with audio
  • Up to 5x speed increase
  • Preview playback changes
  • Supports iPhone, iPad, iPod
Features
Read full description

It is an application to change the playback speed of the video You can change the playback speed of the video to any speed 1. Change the playback speed of the video Select a video to change the playback speed Change to any speed with the slider Set to 200% to double the playback speed Maximum is 500%, maximum is 5 times Please check the preview screen to check the actual playback speed. 2. Change the video playback speed according to the audio file Select the video and audio for which you want to change the playback speed * Please select the audio file from the files in your device. Since the video playback speed is adjusted according to the length of the audio file, the video playback speed is automatically determined.

About

WebP Viewer SAMURAI

Read full description

View animated WebP as animated WebP. No clumsy conversions to GIF or video, no still frames. WebP Viewer SAMURAI is a viewer made in Japan for people who want to read and enjoy their images, not edit them. IMPORT EASILY - Share images from the Files or Photos app and choose this app. - Or tap Import and pick many files at once. - When you pick many, choose what to import: animations, still images or videos. Collecting only the animations is easy. (Full version) - Import a whole folder at once. (Full version) - Videos you pick are converted into animated WebP. Set the start in 0.5-second steps and preview the result before converting. VIEW - Full screen with pinch to zoom, swipe to the next image. - Animated images loop smoothly, even large ones. - Tap to show the buttons, then tap again to rotate 90 degrees. The rotation is saved per image. - Slideshow. ORGANIZE - Keep images in folders with thumbnails. - Sort folders into groups, open or close them with ▼, and rename them anytime. (Full version) - Swipe sideways inside a folder to go to the next one. - Drag to reorder, move to another folder, delete in bulk. - Save or send selected images from the share sheet. - Save an animated WebP as a GIF that moves in Photos and on X, too. - Press and hold a folder or an image to reorder it. - Send images to our sister app "Itabag Layout Simulator", or pick images from this app inside Itabag. FAVORITES - Tap the heart to add favorites and see them all from "Favorites" on the top screen. - Show favorites as a header and an icon at the top of the top screen. Choose the visible area with your fingers. - Play a slideshow of just your favorites. - Sort favorites into groups, one for each of your favorites. (2 or more groups: Full version) - Export a favorite as a wallpaper, cut to the shape of your screen. (Full version) - Pick one of 6 background colors, or use any image as the background. (Image: Full version) PRIVATE BY DESIGN - Images are stored only on your device. Nothing is uploaded. - No account. No ads. FREE AND FULL VERSION The free version includes import, full screen viewing, rotation, slideshow, favorites (one group, with the header and icon on the top screen), background colors, search by file name, renaming, full backup (export all and restore), saving an animated WebP as a GIF, sending images to and from Itabag, and up to 2 folders. Video conversion is limited to 12 fps, 720 px and 20 seconds. The full version (one-time in-app purchase) adds: - Unlimited folders and folder groups - 2 or more Favorites groups - Export favorites as wallpapers - Any image as the background - Choose what to import in bulk (whole folders, too) - Crop (animated images stay animated) - Per-folder backup (export and restore) - Video conversion at 24/30 fps, 1080 px, 30 or 60 seconds Bought it before? Use "Restore purchase" in Settings on any device with the same Apple Account.

Screenshots

Video Speed2 screens
WebP Viewer SAMURAI4 screens

Verdict

The call

The clearest difference is in-app purchases: Video Speed at none against WebP Viewer SAMURAI's 1. WebP Viewer SAMURAI's advantage is ads (none vs shown) and update cadence (every 2 days vs every 5 weeks). On price, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. WebP Viewer SAMURAI sells 1 one-off in-app purchase. Video Speed asks for nothing beyond the download.

UpkeepUpdate frequency

Video Speed ships an update every 5 weeks, WebP Viewer SAMURAI every 2 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
Video Speed versus WebP Viewer SAMURAI: the parameters behind the verdict, then further details
ParameterVideo SpeedWebP Viewer SAMURAI
PriceFreeFree
Rating4.3 (91 ratings) — better—
Positive reviews23.8% of reviews—
Number of ratings91 — better—
Update frequencyEvery 5 weeksEvery 2 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size30 MB5 MB
Age rating4+4+
DeveloperWEBDIA INC.TAKASHI MAEDA

In-app purchases

None

Video Speed

No in-app purchases

1 purchases

WebP Viewer SAMURAI

One-time1
  • Full Version$9.99

Questions

Is Video Speed free?
Video Speed is free to download, with no in-app purchases.
Is WebP Viewer SAMURAI free?
WebP Viewer SAMURAI is free to download, with in-app purchases available.
Do Video Speed or WebP Viewer SAMURAI have ads?
Video Speed shows ads; WebP Viewer SAMURAI does not.
Which is updated more often, Video Speed or WebP Viewer SAMURAI?
Video Speed ships an update every 5 weeks, and WebP Viewer SAMURAI every 2 days. Most recently, Video Speed was updated on October 24, 2026 and WebP Viewer SAMURAI on October 29, 2026.

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