--- title: "Speedifier — App Overview" url: https://marlvel.ai/apps/speedifier category: Utilities developer: Arno Appenzeller platforms: ios rating: N/A (0 ratings) pricing: paid report_level: overview generated: 2026-04-30 last_verified: "2026-04-30T10:09:53.546Z" --- > **Key Insight:** While the app promises native HTML5 video speed control, recent user feedback indicates significant issues with extension installation and lack of developer support. | Metric | Value | |--------|-------| | Category | Utilities | | Rating | N/A ★ (0) | | Pricing | paid | | Platforms | iOS | | Latest Version (iOS) | 1.1 | | Developer | Arno Appenzeller | ## What is Speedifier? Speedifier is a Safari 10 extension designed to adjust the playback speed of HTML5 videos across various websites. It provides both a right-click menu option and dedicated player buttons for specific platforms like Netflix, Twitch, and Vimeo to facilitate faster or slower viewing. ## Key Features - **HTML5 Video Speed Control**: Allows users to increase or decrease the playback speed of HTML5 videos within the Safari browser. - **Dedicated Player Integration**: Adds native playback speed buttons directly to the video players of supported sites including Netflix, Vimeo, Twitch, and Prime Video. - **Context Menu Access**: Provides a right-click menu option to adjust playback speed on websites that lack a dedicated integration button. ## Who is it for? Safari users who frequently watch HTML5-based web video content and require playback speed control. ## Links - [App Store](https://apps.apple.com/us/app/speedifier/id1212622564?mt=12&uo=4) - [Full Intelligence Report](https://marlvel.ai/apps/speedifier) --- *This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/speedifier).* *Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*