# Slow Motion & Fast Video Speed — Change Playback Speed. No Ads.

> Change Playback Speed. No Ads. (iPhone/iPad app by SAYAKA KAMIYA.)

- Source: https://appshunter.io/ios/app/slow-motion-and-fast-video-speed/id6784878867 (this page in markdown: same URL + `.md`)
- Developer: [SAYAKA KAMIYA](https://appshunter.io/developer/1886436594)
- Category: Utilities, Photo & Video
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, Japanese, Korean, Brazilian Portuguese, Chinese (Simplified, China), Mexican Spanish, Chinese (Traditional, Taiwan)
- Released: 2026-07-01
- Data updated: 2026-09-05
- User reviews in markdown: https://appshunter.io/ios/app/slow-motion-and-fast-video-speed/id6784878867/reviews.md

## What is Slow Motion & Fast Video Speed?

A simple app for changing the playback speed of your videos and saving them directly to your Camera Roll.

Built for anyone who wants slow-motion or speed-up clips without the hassle. Pick a speed, export, done.

【What this app does】
· Export at 0.25x, 0.5x, 0.75x, 1.5x, 2x, 3x, or 4x speed
· Pro: change speed section by section within a single video
· Pro: fine-tune any speed from 0.2x to 10x
· Pro: set your target length and the speed is calculated automatically
· Three audio modes: muted, speed-linked, or natural pitch (Pro)
· Up to 1 video per day free; Pro (¥300) unlocks unlimited exports
· Fully offline — your videos never leave your device
· No ads

【Pro plan】
One-time ¥300 unlocks:
· Change speed section by section within one video
· Voice stays natural, even at high speed
· Fine-tune speed from 0.2x to 10x
· Set the target length and let the app calculate the speed
· Unlimited exports
· No subscription, ever

【Privacy】
All processing happens on-device. No network requests. No uploads.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Video Speed Pro | $1.99 | one-time |



## Version history (last 5 releases)

### 1.10 — 2026-08-29

Improved processing stability

### 1.9 — 2026-08-19

· Now tells you right away when a video can't be saved to your photo library, and lets you try again
· Guides you to Settings when access to photos isn't allowed
· Fixed an issue where a video could be shared before saving finished

### 1.8 — 2026-08-17

· New: change speed section by section within a single video (Pro)
· Added a dedicated editor to preview and fine-tune each segment

### 1.7 — 2026-08-16

· Progress is now shown accurately all the way through export
· When an export fails, we now explain what happened and what to try next
· If storage space looks insufficient, we let you know before starting the export
· Improved stability when switching to another app during export

### 1.6 — 2026-08-13

· Fixed an issue where exporting a long or large video could appear to stall
· Fixed exports at high speeds, such as 10x, playing back incorrectly
· Fixed the finished length not matching when you set a target duration
· Progress now reflects the actual export instead of an estimate
· The screen no longer locks while an export is running
· Fixed temporary files being left behind on your device
We're sorry for the trouble this caused.

## More apps by SAYAKA KAMIYA

- [DoneLayer](https://appshunter.io/ios/app/donelayer/id6766066293)
- [Kids Growth Diary - KidsMoment](https://appshunter.io/ios/app/kids-growth-diary-kidsmoment/id6777393198)
- [GIF Maker - Video & Photo](https://appshunter.io/ios/app/gif-maker-video-and-photo/id6782080278)
- [GIF to Video - Convert GIF](https://appshunter.io/ios/app/gif-to-video-convert-gif/id6782367180)
- [HEIC Converter - JPG & PNG](https://appshunter.io/ios/app/heic-converter-jpg-and-png/id6782590395)
- [Exif Remover - Remove GPS](https://appshunter.io/ios/app/exif-remover-remove-gps/id6784701164)

All apps by SAYAKA KAMIYA: https://appshunter.io/developer/1886436594

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-05.*