Eightify is a browser extension (available for Chrome and Safari) that uses Artificial Intelligence (powered by ChatGPT) to summarize YouTube videos into key points.In just a few seconds it can analyze even very long videos and produce a concise summary of the main ideas, typically highlighting eight key concepts in the content. Below we take a detailed look at its features, requirements, pricing, security aspects, alternatives, and main use-case scenarios.
Eightify integrates directly into the YouTube page: once the extension is installed, a button (e.g., “Summary”) or an Eightify icon appears on the video interface. Clicking it prompts the AI to process the video and produce a text summary of the highlights. The analysis is quick—typically only a few seconds even for hour-long videos—thanks to advanced models (OpenAI ChatGPT and Anthropic Claude) that understand the content and extract the key ideas.
The main features include:
Key-point summary: The video is condensed into a list of roughly eight essential points, giving the user an immediate overview of the content. The summaries are designed to be brief and to the point, so they don’t overwhelm with too much text.
Smart navigation: Key points are often accompanied by timestamps, allowing you to click and jump straight to the corresponding section of the video. In practice, the extension splits the video chapter by chapter, highlighting the topics covered.
Full video transcript: Eightify also provides the complete transcription of the spoken audio. By clicking the dedicated icon (for example, a “CC” symbol in the Eightify menu), you can view and copy the full text spoken in the video. The generated transcripts are highly accurate—often more precise than YouTube’s automatic captions.
Top comments overview: The Eightify interface includes a section that shows the most up-voted comments related to the video, along with a possible summary of each, so you can quickly see whether other viewers found the video helpful. (Note: the “Top Comment Overview” feature is highlighted by the developer as useful qualitative feedback.)
Multilingual support: The extension can generate summaries (and translate text) in more than 40 languages. For example, you can get an Italian summary of a video originally in English, or vice versa. (Translation of summaries is available only for Premium users.)
Easy sharing: Eightify lets you export or share the summary with a single click. You can copy the text or turn it into a mini-article to email or save in your notes.
Step-by-step guide
After installing the extension in Chrome, you must sign in (for example with your Google account) and grant the required permissions. From that moment on, whenever you open a YouTube video page you can activate Eightify: click the Summary button that appears below the video (or the icon in the browser toolbar) and the service will automatically generate a summary.
Before the summary is created you can preset a few options—for instance, short or detailed length, bullet-point or paragraph format. Once the summary is ready you can read it and grasp the video’s key points in under a minute without watching the entire clip. Through the Eightify menu you can also:
view the full text transcript (useful for in-depth reading or keyword searches);
translate the summary into other supported languages;
copy the text to the clipboard for saving or sharing.
In short, Eightify is designed to save you time, letting you learn quickly from long videos through concise summaries.
Advantages and Disadvantages
Advantages
Huge time saver – Eightify’s AI distills the eight key insights from even very long videos in seconds, so you can quickly decide whether they’re worth watching.
Clickable timestamps – every point in the summary links to the exact minute of the video, enabling lightning-fast navigation.
Support for 40+ languages – summaries can be generated or translated into many languages, perfect for international channels or language learning.
Full transcript – besides the TL;DR you can obtain the complete spoken text, handy for citations or searching the content.
Overview of top-voted comments – Eightify shows an extract of the top comments, giving you an instant feel for community sentiment.
One-click installation and cross-platform use – available on Chrome, Safari, iOS, and Android with a minimal, intuitive interface.
Customizable summaries – in the Pro version you can choose length, format (list, Q&A), and focus (practical, controversial, entertaining).
Instant sharing – summaries can be copied or shared via a link in a flash, great for study groups or teams.
Cons
Limited to YouTube — does not work natively on Vimeo, TikTok, or local video files.
Subscription-only after the trial — as of 2025 there is a 7-day free trial; then US $4.99/month or US $49.99/year, with no more freemium plan.
Depends on good-quality audio/captions — if speech is unclear or subtitles are missing, the summary may be incomplete.
Risk of oversimplifications or misunderstandings — the AI may miss ironic tone or very fine technical details.
Reports of instability — some users experience crashes or long waits on very long videos or after errant clicks.
Translations not always precise — language versions can be generic or lose idiomatic expressions.
Requires connection to generate new summaries — offline you can only reread previously saved summaries.
Poorly documented advanced features — custom presets or the API need some tinkering before you understand them well.
Personal data collection — Eightify logs and stores email, IP, usage history, and transcripts on its own servers, as stated in its privacy notice.
Pricing and Available Plans
Eightify is not completely free: it follows a freemium model with an initial free trial and then paid plans. There is no unlimited free tier after the trial period (although in the past there was a very small weekly allowance).
When you first install the extension you can activate a free trial to test all Premium features. It used to last seven days; currently it may have been reduced to a three-day trial. During this period Eightify allows unlimited summaries for videos of any length so you can explore the full potential without restrictions.
When the trial ends you must subscribe to the Pro plan to keep using the extension. The cost is USD 4.99 per month with annual billing (≈ USD 59.99 per year) or USD 9.99 if paid monthly. Annual billing saves about 50 % versus the monthly price. The Pro plan includes: unlimited summaries, no video-length limits, translation of summaries into 40+ languages, and full access to all advanced features. Note that Eightify asks for payment details at the start of the free trial; some users see this as a hurdle when they only want a quick test. As of March 2025 there is no ongoing free usage beyond the trial—except for temporary promotions or earlier versions with “one free summary per day.” In short, regular use requires a Pro subscription.
Note: Eightify occasionally offers discounts or special plans—for example, annual subscriptions at roughly USD 3.95 per month according to some sources—and the company aims to keep pricing affordable. Always check the official website for updated prices or trial lengths.
Alternatives
Other similar tools worth considering
YouTube Summary with ChatGPT & Claude (Glasp) – free extension that generates summaries, transcripts, and translations directly on YouTube (and even on web articles), letting you choose the AI model.
YouTubeDigest – customizable plug-in: choose format (article, bullet list, Q&A), translate the text, and export the summary as PDF, DOCX, or Markdown; requires a ChatGPT account.
NoteGPT – web app and extension aimed at study: transcribes, summarizes in over 50 languages, and converts summaries into mind maps or PowerPoint slides, with integrated search and note-taking.
Summarize.tech – minimalist site: paste the URL and quickly get timestamped sections, perfect for podcasts, conferences, or very long lectures.
Notta AI – starts with a high-precision transcript (≈ 98 %) and generates a structured summary; available online and as an extension, with multilingual support and live-mode options.
FAQ
Eightify mod APK – Premium unlocked?
There is no official “mod” version of Eightify. The “Premium-unlocked” APKs circulating on third-party sites violate the terms of service and may carry malware or trojans, as happened with modified versions of Spotify, WhatsApp and Telegram discovered by Kaspersky. To use Eightify legitimately, install it from Google Play / App Store or as a Chrome extension and activate the official trial period.
How much does Eightify cost?
The current plan (April 2025) offers a 3-day free trial and then a subscription of US $4.99 per month or US $59.99 per year, on both the web and the iOS/Android apps. A permanent free tier is no longer available.
How can I cancel my Eightify subscription?
• If you subscribed via the web/Chrome extension: log in → Settings > Billing → “Cancel Subscription”.
• iOS purchase: Settings → Apple ID → Subscriptions → Eightify → Cancel.
• Android purchase: Play Store → Profile → Payments & subscriptions → Subscriptions → Eightify → Cancel.
Simply removing the extension or the app does not stop billing — you must cancel before the automatic renewal date.
Where can I find the Eightify APK?
The official APK is distributed only through the Google Play Store; it is not published on public repositories such as GitHub. Downloading APKs from unofficial sites exposes you to security risks and data loss.
What are the alternatives to Eightify?
Popular solutions for summarising YouTube videos include: Glasp “YouTube Summary with ChatGPT” (multilingual summaries and transcripts), YouTubeDigest (customisable PDF/Markdown output), NoteGPT (mind-maps and slides from summaries), Summarize.tech (instant URL-to-summary), Wordtune Summarizer Video (concise summaries with cloud library), HARPA AI (/youtube-summary command in Chrome) and Notta AI (high-accuracy transcription + summary).
What can I do with Eightify?
• Get an eight-second overview of videos up to ten hours long.
• Navigate via clickable timestamps to key moments.
• Read (or copy) the full transcript in 40+ languages.
• Translate and re-format the summary (list, Q&A, emojis).
• View the top-voted comments to gauge community sentiment.
• Share summaries via link, PDF or internal notes across devices.
In short, Eightify saves time on long videos, improves information retrieval and makes sharing insights easier.
Author
Nicolò Caiti
I’ve made MarTech my career, focusing on artificial intelligence for digital marketing. In this blog I analyse how AI is transforming the sector—improving web performance, optimising digital strategies and speeding up everyone’s work. With years of experience in marketing automation and advanced customer-journey management, I share practical insights, case studies and best practices to help people harness AI’s potential in their roles.I hope you find the answers you’re looking for!
