firstreactions
Audience testing for YouTube creators

Test your videos with viewers of competing YouTube channels.

Get real feedback on your ideas, titles, thumbnails and hooks from verified viewers who already watch the channels you want to compete with.

Run your first test free →Free · no card
1,600 creators test before they publish. 12,400+ reactions delivered.
🔒 Encrypted at rest• Reactors can’t download your files• Auto-deleted on request
Rank ideas
RANKING NOWDRAG TO RANK
1Why home espresso tastes sour
2$30 machine vs $3,000
3Every coffee myth, tested
4I ranked 12 supermarket beans
Verified viewer
0:34
WatchesJames Hoffmann · Lance Hedrick · Morgan Drinks Coffee

“Oh, the $30 vs $3,000 one. Yeah, I’d click that. I’ve genuinely been wondering if it’s worth upgrading.”

Choose who reacts

Choose viewers of the channels you want to compete with.

Select the YouTube channels your ideal viewers already watch, and how deeply. We know the hours each viewer has actually spent on every channel, so you can target regular fans and superfans, not someone who clicked once. Niche, age and location filters stack on top.

How verification works
Search 12,000+ channels, niches, and countries…
CHANNELS THEY WATCH
+ 12,000 more
HOURS THEY'VE WATCHED
NICHES THEY BINGE
+ 180 more
AGE
LOCATION
+ 40 more
These are just examples. Search any channel, niche, country, or age you can name, and stack as many filters as you like.
14,986
viewers match your filters
Every one is a regular watcher of the established channels in your niche, verified by real hours watched. Win them here, and you win the audience you’re chasing.
IdeationTest many at once

Find your best idea.

Drop in a batch of ideas and put them in front of the viewers you’re trying to reach. They react and rank them, so you learn which concepts attract them, and which leave them cold, while they’re still free to change.

✓Test 10+ concepts in a single batch
✓Ranked by viewers from your target niche, not random strangers
✓Kill the weak ideas before you spend a shoot day
REACTOR · SORTING YOUR IDEAS
VOTES COMING INLIVE
1$30 machine vs $3,0000
2Why home espresso tastes sour0
3Every coffee myth, tested0
REACTOR · CHOOSING A HOOK
HOOK A / BPICKING…
A
B
Pre-publishTwo head to head

Then find your best hook.

A hook is your title, thumbnail, and first 60 seconds working as one. Put two hooks head to head in front of your competitors’ viewers and watch exactly where attention holds, and the frame where it slips.

TitleThumbnailFirst 60 seconds
The part you’ve never been told

YouTube shows you the drop.
We show you why.

Retention shows where viewers left. FirstReactions shows why: a real viewer explains the exact moment they lost interest, so you know what to change in your next upload.

REACTOR · ON CAMERA
DROPPING AT 0:22
0:22

“We’re 22 seconds in and I still haven’t seen the studio. I’d leave here.”

Audience retentionfirst 60 seconds
0:22 · the cliff0:30
84%
dropped at the cliff
From upload to reactions

First reactions in under an hour.

Fast enough to run inside a workday, not a research cycle. And every test teaches you what your niche actually clicks, so you learn faster and become a sharper creator with every upload.

1~30s

Upload

Drop your idea, title, thumbnail, or hook.

2~2 min

Pick viewers

Filter to viewers who already watch channels like yours.

3live

They react on camera

Real people watch and talk on camera. Not a score. A person.

4< 1 hr

Results arrive

Reactions, quotes, and the winner, straight to your inbox.

Mobile

Throw out an idea the moment it hits you.

Your best concepts show up between shoots and edits, not at your desk. Fire a test off from your phone, keep working, and real reactions are waiting when you look back. Perfect for creators shipping every week.

Download on theApp StoreGet it onGoogle Play
9:41•••
Video ideaslive
REACTING

“$30 vs $3,000? Yeah, I’d click that.”

12 viewers reacted · ranked
1$30 machine vs $3,000WINNER

Ranked by 12 verified viewers · just now

+ New test
Pricing

Plans that scale with you.

Buy credits and spend them however you test. Your first test is free, no card, cancel whenever.

How credits work1 minute of a reactor’s time = 1 credit.
Idea, title or thumbnail reaction1 credit
Hook reaction (your first 60 seconds)2 credits

A test with 10 viewers spends 10× the per-reaction credits. The bigger the plan, the cheaper each credit gets.

Annual discountSave 20%
Starter

For the creator testing one idea or thumbnail per release.

$12/ month
$144 billed yearly
30credits / month
✓30 credits every month
✓Full winner report per batch
✓Saved audience filters
✓Batch history
Start Starter →
Most creators pick this
Creator

For testing every idea, thumbnail, and hook you make.

$38/ month
$456 billed yearly
100credits / month
✓100 credits every month
✓Priority delivery queue
✓Advanced audience filters
✓Everything in Starter
Start Creator →
Pro

For teams shipping to real audiences at pace.

$128/ month
$1,536 billed yearly
350credits / month
✓350 credits every month
✓Team seats & shared workspace
✓Priority delivery queue
✓Everything in Creator
Start Pro →
Studio

For studios running heavy release-testing programs.

$352/ month
$4,224 billed yearly
1,000credits / month
✓1,000 credits every month
✓Higher rate limits on batches
✓Priority reactor pool access
✓Priority email support
✓Everything in Pro
Start Studio →
Enterprise

Building for a label, studio, or agency?

• Custom monthly credit volume• Priority API access + SLA• Dedicated reactor pools
Talk to sales →

Stop guessing what your competitors’ viewers think. Watch them tell you.

Your first test is free. Real reactions from verified viewers of competing channels, back within the hour, so every upload lands better than the last.

Run your first test free →
No card · Cancel anytime · Auto-deleted on request