Prime Speed Controller
Prime Speed Controller is made and published by Kohei Ishikawa. AppBrain is an independent app data site and isn't affiliated with Kohei Ishikawa. The app name, icon, screenshots and description belong to Kohei Ishikawa and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- September 21, 2026
- Size
- 776.0 KB
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Store listing
By Kohei Ishikawa, from the App StoreDescription by Kohei Ishikawa Written by the developer, not by AppBrain. Click to read.
■ A-B Loop Repeat
Tap A to mark a start point, tap B to mark an end point — the video loops that segment continuously. Replay any dialogue, scene, or lecture as many times as you need.
■ Playback Speed
15 presets from 0.5x to 5x, with 0.05x fine-tuning. Subtle steps like 1.1x and 1.2x let you boost speed while keeping audio clear.
■ Forward & Rewind
Choose 5, 10, 15, or 30-second intervals. Jump back instantly to catch missed dialogue.
■ Time-Saved Tracker
The panel shows how much real time you have saved by watching above 1.0x speed, accumulated across sessions.
Key Features
• A-B Loop: mark any segment for continuous repeat
• 15 playback speed presets from 0.5x to 5x
• Fine-tune in 0.05x steps
• Forward and rewind at 5, 10, 15, or 30 seconds
• Time-saved tracker displayed in the panel
• Settings saved automatically across sessions
• Works on iPhone and iPad
• Activates only on Prime Video — no other sites
• No data sent to external servers
How to Use
1. Follow the in-app guide to enable the extension in Safari Settings.
2. Open Prime Video in Safari and start a video.
3. Use the floating panel to set speed, seek interval, or A-B loop points.
Playback speed or seeking may be restricted by Prime Video for certain titles. This app does not detect or skip advertisements.
This is an independent, unofficial Safari extension. It is not provided, endorsed, or approved by Amazon, Prime Video, or their affiliates. Amazon and Prime Video are trademarks or registered trademarks of their respective owners.
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 776.0 KB
- Content rating
- Everyone
Technologies used by Prime Speed Controller
Releases
Updates seen on the App Store- Version
- 1.0
- Launched
- September 2026
No changelog data
Alternatives
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Rankings
App Store top chartsApp Store Rankings for Prime Speed Controller
About the app and developer
About Prime Speed Controller
Prime Speed Controller is an utilities app developed by Kohei Ishikawa.
What is the rating of Prime Speed Controller?
Prime Speed Controller has no ratings yet.
Is Prime Speed Controller free?
Prime Speed Controller is free. The app size is 776.00 kB. The latest version available is 1.0. The last update was on September 21, 2026.
What are the requirements for Prime Speed Controller?
The app has a content rating of Everyone. The app has been available on the App Store since September 2026.
Developer information for Kohei Ishikawa
Address:
Frequently asked questions about Prime Speed Controller
Is Prime Speed Controller free?
Yes. Prime Speed Controller is free on the App Store.
Is Prime Speed Controller still available?
Yes. Prime Speed Controller is on the App Store, and the last update we saw was on September 21, 2026.
How large is Prime Speed Controller?
Prime Speed Controller is 776.00 kB.
Is Prime Speed Controller suitable for children?
App Store rates the content of Prime Speed Controller as suitable for everyone.
Who made Prime Speed Controller?
Prime Speed Controller was developed by Kohei Ishikawa. It is listed in the utilities category on the App Store.
What are the best alternatives to Prime Speed Controller?
People looking at Prime Speed Controller also look at these utilities apps: Simple Video Speed Controller, Video Editor – Reverse, Speed, Video Editor - FFmpeg Pro, Video Speed for Safari, Video Compressor - Shrinker.
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