Retention check for Reels
We'll bet on the second your Reel lost people.
Send a Reel you already posted. In about 3 minutes, publishub names the second viewers most likely left and the line you were saying. Check it against Instagram Insights. Then run your next Reel through it before you post.
No account · No card · Results in ~3 min
Retention
Drop at 0:04
−32% in 2 seconds
You were saying · 0:03
“So, before anything else, let me give you some quick context on why I decided to do this.”
Fix plan
4 suggestions
- 0:00 → 0:04CutAccepted
Drop the intro and open with the result.
- 0:04HookAccepted
Say the number the title promised, right here.
- 0:12Caption
Put the number on screen while you say it.
Final edit: 0:34 → 0:24
Made for creators who talk on camera and edit their own Reels.
Also works with TikTok and YouTube Shorts.
02The problem
Your Reel flopped. Insights shows where, not why.
Insights draws the curve. It doesn't tell you which line made people swipe, or what to change in your next Reel.
- 01
The drop doesn't show up on the timeline.
Your editor shows the cuts, not the second someone gave up watching.
- 02
Generic tips don't fit this video.
“Improve your hook” doesn’t say which line to drop or what to say instead.
- 03
After the tenth pass, your eye gets used to it.
Whoever shot and edited it no longer sees the long intro or the repeated line.
Before and after
Without publishub
- 01Post the Reel and wait for the views.
- 02Open Insights and see the curve drop in the first seconds.
- 03Rewatch the video, guessing which line lost people.
- 04Change something at random in the next Reel.
- 05The next Reel drops in the same spot.
You see where people left, never why.
With publishub
- 01Send the Reel you already posted.
- 02In about 3 minutes, see the second people most likely left and the line you were saying.
- 03Check that second against Insights.
- 04Get the fix plan: what to cut, change or say first.
- 05Run your next Reel through publishub before you post.
You learn why it dropped, and fix the next one before it goes out.
03The bet
A bet you can check.
Every "improve your hook" tip is impossible to verify. publishub commits: it points to the second of the drop and predicts how much retention should rise after you re-record.
You republish, open Insights and paste the real number. It hit, or it didn't. Over time you build an accuracy score and learn what works with your audience, not everyone else's.
We said: 0:04 · Insights says: 0:04 · Hit.
Then, after you re-record
Retention at 0:09, after re-recording
ExamplePredicted
65%
Actual
68%
Confirmed: the real number landed 3 points above the prediction.
04The second look
It reads your Reel line by line.
publishub transcribes every line, marks the second attention drops and explains why, so you know exactly what to change.
1 · it watches, second by second
- 0:00Hey guys, how's it going? Today I want to tell you something.hook takes too long
- 0:03So, before anything else, let me give you some quick context.0:04 — attention drops here
- 0:06It's been 30 days since I quit coffee.this is the payoff. keep this.
- 0:09And the first week was the hardest of all.
- 0:14In the second week, my sleep changed completely.
- 0:19So, uh, like, my sleep, my sleep really changed.same idea as 0:14
- 0:24Now I wake up before the alarm goes off.caption is too slow
- 0:30So that's it, guys, bye, see you in the next one.people leave before the end
05How it works
From posted Reel to fix plan in about 3 minutes.
Upload a Reel you already posted. publishub analyzes it, you review every suggestion and keep only what you approve.
Upload the video as it is.
MP4, MOV or WEBM, straight from your phone or computer. No account needed for the first analysis.
Drag your video here
MP4, MOV or WEBM
no-coffee-30-days.mp4
UploadedLength 0:34 · 9:16
No account · No card · Results in ~3 min
06What it checks
Seven fronts, one ordered plan
Not a score and not a list of tips: the changes this video needs, from the one that moves retention most to the one that moves it least.
- 01
Hook
what to say or show in the first 3 seconds
- 02
Cuts
the stretch that doesn't pay for the time it takes
- 03
Pacing
the pause to trim, the part to speed up
- 04
B-roll
where the screen sits still and what to put there
- 05
Captions
the text on screen and when it comes in
- 06
Structure
what to pull forward, what to hold back
- 07
CTA
where the ask goes and how to word it
AI that points.You decide.
publishub doesn't replace your creative judgment. It points at what to fix, explains why it matters and suggests what you could try instead.
| publishub | You |
|---|---|
| watches every second | decide what stays |
| points at what's weak | edit it your way |
| explains why it matters | keep your voice |
| suggests what to try | hit publish |
nothing changes without your OK
07Memory
The more you use it, the more it learns your style.
publishub has memory. Every video you analyze teaches it what you accept, what you reject and what you usually ask for, so your next analysis arrives already shaped to your style.
- 01
The cuts you decide on
After three decisions on a kind of cut, it understands your preference and brings those cuts already marked your way.
- 02
What you ask to change
What you write when you don't like an edited video becomes a rule for your next analyses.
- 03
How your videos evolve
It tracks your hook score and the problems that keep coming back, and tells you when a mistake returns.
You see everything it learned, write your own rules, delete anything you want or pause the memory.
An AI chat starts from zero in every conversation. publishub starts from what you've already decided.
Test it on a posted Reel, freeHow you decide on cuts
- Long pauseusually rejected
- Hesitationusually accepted
- Slow startusually accepted
Your rules
Don't cut my dramatic pauses.
In your next analysis
You usually keep your pauses, so I only suggested cutting the one at 0:12, which runs past 3 seconds.
08At a glance
Built to fit your workflow, not replace it.
- from upload to fix plan
- ~3 min
- from upload to fix plan
- areas reviewed in every video
- 7
- areas reviewed in every video
- cuts applied without your OK
- 0
- cuts applied without your OK
- interface languages, from English to Japanese
- 11
- interface languages, from English to Japanese
09Pricing
Start free. Pay once if it's worth it.
Try publishub on your own video before paying anything. When you want every analysis complete, Founding Creator is a one-time payment for lifetime access.
Free
US$ 0
No card needed
See what publishub finds in your video before deciding anything.
- Test one video without an account: the second people most likely leave and the line you were saying
- With a free account, your first analyses come complete: action plan, cut suggestions and rewritten hooks
- After that, every analysis still shows where the video drops and its first recommendations
Founding Creator
US$ 12
One-time payment · Lifetime access
Everything publishub does, with the deepest analysis, forever.
- Unlimited analyses, within fair use of 20 a day
- The edited video, with the cuts you accept
- Deep analysis: up to 20 frames of the video read by the AI
- Action plan across seven fronts, with up to 12 recommendations ordered by impact
- Cut suggestions, with the second of each one
- Alternative hooks, written out
- Lifetime access, with every improvement that comes
7-day guarantee: if it doesn't work for you, we refund 100%.
One-time payment. No subscription, no renewal, no card on file. Stripe converts the price to your currency at checkout.
Questions
Before you send the first video
What do I need to send?
Just the Reel's video file (MP4, MOV or WEBM, up to 50 MB). You get the action plan from the video alone. If you also send the retention screenshot from Instagram Insights, publishub reads your real curve and adds a prediction you can check.
Why not just ask ChatGPT?
Because a chat doesn't watch your video second by second. publishub transcribes your speech with the timing of every line, measures pauses and scene cuts in the file itself, reads your retention curve when you send the screenshot and points to the exact second of the problem. It also cuts: you accept the suggestions and download the edited video. And it remembers you: what you accept, reject and ask for becomes memory for your next analyses, while a chat starts from zero in every conversation.
What's free?
You can test one video without an account and see the second people most likely leave, with the line you were saying. With a free account, your first analyses come complete: action plan, cut suggestions and rewritten hooks. After that, each analysis still shows where the video drops and its first recommendations; the full plan comes with Founding Creator.
Is it worth it?
It is if you post videos often, edit them yourself and want to know what to change before you post. It isn't if you rarely post or your videos have no speech, because the analysis starts from what you say. If you're unsure, test one video for free before paying anything.
Does it work for my niche?
It works in any niche where you talk on camera: personal brand, education, business, beauty, cooking, fitness, UGC and so on. publishub analyzes speech, pacing and viewer attention, which apply to all of them. Music-only videos, with no speech, aren't analyzed yet.
Does it replace CapCut or Premiere Pro?
No. publishub doesn't ask you to learn a new editor. It tells you what to change, at which second and why. You can download a version with the cuts you accepted, or apply the suggestions in CapCut, Premiere Pro or whichever editor you already use.
What if I don't like it?
You have a 7-day guarantee. If the Founding Creator plan doesn't work for you, ask for a refund at copilot@getpublishub.com and we'll give you 100% back. And before paying, you can already test it on your own video, for free.
What happens to the videos I upload?
They're kept in private storage, reachable only by your account or our server through short-lived links. They're used to generate your analysis (the audio and frames are processed by Google Gemini for that), never sold and never used to train models of our own. Deleting your account removes your videos, screenshots and analyses right away.
Does it work with TikTok?
publishub needs a video with speech and a readable retention chart. TikTok shows that curve in its video analytics too; if the screenshot is clear, it works the same way.
Is it a subscription?
No. It's Founding Creator: a one-time payment with lifetime access, no monthly fee and no renewal. Every improvement publishub gets, you get.
Who's building this
Valmir · Solo founder · UGC creator · Salvador, Brazil
I'm Valmir, a self-taught developer and UGC creator from Salvador, Brazil. I build publishub on my own, in evenings and lunch breaks, and share every step in public. If something's off with your analysis, you're talking straight to the person who wrote it.
Questions? Email me at copilot@getpublishub.com
10 · Get started
Find out where your last Reel lost people.
Send a Reel you already posted. In about 3 minutes you'll see the second, the line and what to change next time.
No account · No card · Results in ~3 min