Speedifier icon
Speedifier

Arno Appenzeller

App Store

Report updated Apr 30, 2026

Overview · Full Intel report in progress

Speedifier is an established utilities app that is a paid app.

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.

Current Momentum

v1.1

- refreshed UI for BigSur

Competition

Rivals identification in progress

7-Day Rank Pulse 🇺🇸

Utilities

No ranking data

Rating Pulse 🇺🇸

Gathering signals...

What makes this app unique?

What Does It Look Like?

Loading...

What Are The Key Features?

HTML5 Video Speed ControlStandard

Allows users to increase or decrease the playback speed of HTML5 videos within the Safari browser.

Dedicated Player IntegrationStandard

Adds native playback speed buttons directly to the video players of supported sites including Netflix, Vimeo, Twitch, and Prime Video.

Context Menu AccessStandard

Provides a right-click menu option to adjust playback speed on websites that lack a dedicated integration button.

How much does it cost?

Paid

Who Built It?

Arno Appenzeller app icon 1
Arno Appenzeller app icon 2
Arno Appenzeller app icon 3
Arno Appenzeller app icon 4

Arno Appenzeller

(96.8K)

Enhancing the iOS and watchOS experience with lightweight, utility-focused web extensions and widgets. Enabling seamless multitasking and content access for power users.

Portfolio

11

Apps

Free 5Paid 5
Utilities70%
Productivity10%
Travel10%

Explore the full Arno Appenzeller report

Portfolio breakdown, audience, momentum, and every app published by Arno Appenzeller.

Go deeper

Analysis in progress, available soon

What do users think recently?

Analysis in progress, available soon

Analysis in progress, available soon

What is the competitive landscape for Speedifier?

How's The Utilities Market?

Market outlook for this category

Available very soon

Strategic analysis coming soon

SWOT, key takeaways & outlook

The outtake for Speedifier

Key Takeaways

While the app promises native HTML5 video speed control, recent user feedback indicates significant issues with extension installation and lack of developer support.

Where Is It Heading?

Trend analysis

Available very soon

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Speedifier, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Speedifier Intelligence Report.” Updated Apr 30, 2026. https://marlvel.ai/apps/speedifier

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Data licensed under CC-BY-NC 4.0