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Eightify review

By Arun Agrahri, founder of Taffy | Last updated 9 July 2026

Eightify does one thing well: paste or open a YouTube video and it hands you about eight timestamped key ideas in a few seconds, so you can decide whether a long video is worth your time. It is fast, it handles multi-hour videos, and it even summarizes the video's top comments. For that single-video job, it is a good tool — and yes, I build a competing product, so weigh this accordingly.

This is an honest review of what Eightify is good at, what it costs, where users say it falls short, and the one thing it structurally cannot do: search a whole channel.

What Eightify is

Eightify is an AI browser extension (Chrome and Safari) and a mobile app that summarizes the single video you are watching into roughly eight timestamped "key ideas," with a transcript and an at-a-glance read of the top comments. It is powered by Claude and ChatGPT, supports 40-plus languages, and its whole design is speed: a fast way to triage long videos before committing to watching them.

Eightify pricing

Eightify keeps its pricing behind a sign-in, and third-party figures disagree, so the most defensible numbers come from its App Store listing.

Plan Price
FreeLimited (a small number of summaries; exact limit varies)
Pro (monthly)$9.99/mo
Pro (annual)$59.99/yr (~$5/mo)

Prices as listed on Eightify's App Store page, 2026. Eightify gates pricing behind sign-in and third-party figures vary; confirm in the app before subscribing.

What reviews say — the honest verdict

Genuinely praised

  • Fast — key ideas in seconds, even on multi-hour videos
  • The timestamped key-ideas format; jump straight to a point
  • Transcript quality that often beats YouTube's captions
  • 40-plus languages, and a top-comment sentiment read

Common complaints

  • Aggressive free-tier limit — you run out of summaries quickly
  • Occasional instability and bugs (more so on the extension)
  • Weaker accuracy on nuanced, debate, or satire-style videos
  • Misses detail on especially complex content

Ratings: roughly 4.0 stars on the Chrome Web Store and 4.3 on the App Store, as of 2026.

The one thing it can't do

Eightify is one video at a time. That is the design, and it is fine for triaging a single long video. But it means there is no way to ask a question across a whole channel — "which of these 300 videos covered X" is simply not something Eightify can answer, because it never indexes more than the one video in front of you.

On comments, Eightify does more than most single-video tools: it summarizes the current video's top comments into a quick sentiment read. Worth crediting. But that is one video's comments as a blurb, not a searchable archive — you cannot ask what an audience keeps requesting across a channel.

The alternative for whole-channel search

Taffy is built for the channel-wide job. Point it at any public YouTube channel and it indexes every transcript and every comment, then answers a question across all of them with the exact episode and timestamp. Where Eightify gives you one video's key ideas and a comment blurb, Taffy lets you search every transcript and every comment on the whole channel. If you only ever need one video summarized, Eightify is the lighter, faster pick — and cheaper.

Tool Scope Comments Price Best for
Taffy Whole channel Search every comment $9 · $199 Searching a back catalog
Eightify One video One video's top comments (blurb) Free; Pro $9.99 Fast key ideas from one video

Readers use the Library to search channels that are already indexed for $9/mo. Creators use Creator Club to index their own channel and three competitors.

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Frequently asked questions

Eightify is an AI browser extension and mobile app that summarizes the single YouTube video you are watching into around eight timestamped key ideas, plus a transcript and an at-a-glance summary of that video's top comments. It is powered by Claude and ChatGPT and works in 40-plus languages, and it is built for quickly deciding whether a long video is worth watching.

As listed on Eightify's App Store page in 2026, Pro is $9.99/mo or $59.99/yr (about $5/mo). Eightify gates its pricing behind sign-in and third-party figures vary, so treat these as the App-Store-listed prices and confirm in the app. There is a limited free tier, but its exact limits are not consistently documented.

Eightify is well rated — roughly 4.0 stars on the Chrome Web Store and 4.3 on the App Store. Users praise how fast it is (a few seconds even on multi-hour videos), the timestamped key-ideas format, and transcript quality that often beats YouTube's captions. Common complaints are an aggressive free-tier limit, occasional instability, and weaker accuracy on nuanced or debate-style videos.

No. Eightify works one video at a time — it summarizes the video you are currently watching. It has no capability to search or index across an entire channel's videos, so you cannot ask a question and get an answer drawn from the whole catalogue.

For quick key ideas from one video, Eightify is genuinely fast and good. If you need to search every transcript and every comment across a whole channel and get answers cited to the episode and timestamp, Taffy is the alternative built for that. Eightify shows you one video's top-comment sentiment; Taffy lets you search every comment across the channel.

Key ideas are one video. Search is the whole channel.

Index every transcript and every comment on a channel and search across all of them.

Try today's channel free Index my channel · $199/mo
AA

Written by

Arun Agrahri

Founder, Taffy

I build Taffy, which indexes every transcript and every comment on a YouTube channel. Most of my time goes into running channels through the pipeline and reading what falls out. The claims on this page were checked against live sources on 9 July 2026.

[email protected]